Nibbling Mechanism for Construction Material
AssigneeIzhak Stern Y.D.E. Engineers Ltd.
InventorIzhak Stern
Life of this patent
Estimating the term…
Abstract
Nibbling mechanism (100) for producing a plurality of indented surfaces within a cavity within a construction material (160) including a tube, a plurality of cutters and a cutter moving mechanism, each of the cutters (104) being coupled with the tube (120), the tube (120) being rotatable by a power shaft rotator, the tube including a tube longitudinal axis, the plurality of cutters (104) producing the plurality of indented surfaces within the cavity, the cutter moving mechanism forcing the plurality of cutters (104) in a radial direction away from the tube longitudinal axis toward the cavity, thereby producing the plurality of indented surfaces, wherein the cutter moving mechanism can be inserted into the tube (120).
Claims74
Nibbling mechanism for producing a plurality of indented surfaces within a cavity within a construction material, comprising:
- a rod, rotatable by a power shaft rotator, said rod comprising a rod longitudinal axis;
- a plurality of cutters, each of said cutters coupled with said rod, for producing said plurality of indented surfaces within said cavity;
- and
- a cutter moving mechanism, coupled with said plurality of cutters, for forcing said plurality of cutters in a radial direction away from said rod longitudinal axis toward said cavity, thereby producing said plurality of indented surfaces.
4-7. (canceled)
10-14. (canceled)
16-17. (canceled)
Nibbling mechanism for producing a plurality of indented surfaces within a cavity within a construction material, comprising:
- a tube, rotatable by a power shaft rotator, said tube comprising a tube longitudinal axis;
- a plurality of cutters, each of said cutters coupled with said tube, for producing said plurality of indented surfaces within said cavity;
- and
- a cutter moving mechanism, coupled with said plurality of cutters, for forcing said plurality of cutters in a radial direction away from said tube longitudinal axis toward said cavity, thereby producing said plurality of indented surfaces,
- wherein said cutter moving mechanism can be inserted into said tube.
20-23. (canceled)
(canceled)
(canceled)
30-32. (canceled)
The nibbling mechanism according to claim 12, each one of said plurality of cutters being coupled with said tube by a plurality of respective tube pins, each one of said plurality of respective tube pins being located within a respective one of said plurality of tube pinholes, and each one of said plurality of cutters being further coupled with said piston by a plurality of respective piston pins, each one of said respective piston pins being located within a respective one of said plurality of piston pinholes, wherein each one of said plurality of cutters rotates about said respective tube pin and said respective piston pin as said tube moves relative to said piston when said tube is pushed against said spring, thereby forcing each one of said plurality of cutters in said radial direction away from said tube longitudinal axis toward said cavity, thereby producing said plurality of indented surfaces.
Nibbling mechanism for producing a plurality of indented surfaces within a cavity within a construction material, comprising:
- a tube, rotatable by a power shaft rotator, said tube comprising a tube longitudinal axis;
- a plurality of cutters, each of said cutters coupled with said tube, for producing said plurality of indented surfaces within said cavity;
- and
- a cutter moving mechanism, for forcing said plurality of cutters in a radial direction away from said tube longitudinal axis toward said cavity, thereby producing said plurality of indented surfaces, wherein said cutter moving mechanism can be inserted into said tube.
The nibbling mechanism according to claim 14, wherein said construction material is selected from the list consisting of:
- concrete;
- masonry;
- rock;
- pile;
- stone;
- marble;
- and
- granite.
36-38. (canceled)
The nibbling mechanism according to claim 14, wherein an anchor is inserted into said cavity after said plurality of indented surfaces have been produced in said cavity, said anchor being coupled with said cavity with a settable material.
The nibbling mechanism according to claim 16, wherein said settable material is selected from the list consisting of:
- a resin;
- an epoxy;
- an unsaturated polyester made of diols and dicarbolic acids;
- a styrene free vinylester;
- a hybrid system;
- an adhesive;
- grout;
- epoxy grout;
- cement-based grout;
- and
- furan resin grout.
The nibbling mechanism according to claim 14, wherein compressed air is provided to said nibbling mechanism, for forcing a portion of said construction material, produced as a result of producing said plurality of indented surfaces, out of said cavity.
42-43. (canceled)
The nibbling mechanism according to claim 14, wherein said tube is hollow, said tube further comprising a plurality of lengthwise holes.
The nibbling mechanism according to claim 14, said tube comprising:
- a tube opening, for inserting said cutter moving mechanism into said tube;
- a helical groove, for carrying a portion of said construction material, produced as a result of producing said plurality of indented surfaces, toward said tube opening;
- and
- a plurality of openings located within said tube.
(canceled)
The nibbling mechanism according to claim 20, said cutter moving mechanism being in the form of a rod, said rod lying substantially along said tube longitudinal axis, said cutter moving mechanism rotating within said tube about said tube longitudinal axis, said cutter moving mechanism comprising:
- a plurality of eccentric surfaces, each one of said eccentric surfaces being defined by a first radius smaller than the radius of said rod, and by a second radius larger than said first radius and smaller than the radius of said rod, each one of said eccentric surfaces defining a first intersection on said rod at said first radius, each one of said eccentric surfaces also defining a second intersection on said rod at said second radius;
- a first set of stop surfaces being defined by respective ones of said first intersections and the outer surface of said rod;
- and
- a second set of stop surfaces being defined by respective ones of said second intersections and the outer surface of said rod,
- each one of said cutters comprising:
- a spring portion, in the form of a leaf spring, said spring portion being coupled with said tube;
- a solid portion, coupled with said spring portion, said solid portion being located within a respective one of said plurality of openings, said spring portion forcing said solid portion toward a respective one of said plurality of eccentric surfaces;
- and
- a cutting portion, coupled with said solid portion and adjacent to said spring portion,
- wherein when said solid portion is located at a respective one of said first intersections, said cutting portion is flush with the outer surface of said tube, and when said solid portion is located at a respective one of said second intersections, said cutting portion protrudes from a respective one of said plurality of openings, thereby producing said plurality of indented surfaces, and
- wherein said solid portion moves from said first intersection to said second intersection as said rod rotates about said tube longitudinal axis.
The nibbling mechanism according to claim 20, said tube further comprising:
- a front bearing, located at a front end of said tube, within said tube;
- and
- a rear bearing, located at a rear end of said tube, within said tube, and
- said cutter moving mechanism further comprising:
- a front journal, located at a front end of said cutter moving mechanism, said front journal being further located within said front bearing of said tube,
- a rear journal, located at a rear end of said cutter moving mechanism, said rear journal being further located within said rear bearing of said tube.
49-50. (canceled)
The nibbling mechanism according to claim 14, said tube comprising:
- a tube opening, for inserting said cutter moving mechanism into said tube;
- a plurality of openings, for enabling said plurality of cutters to protrude from said tube into said cavity;
- a helical groove, for carrying a portion of said construction material, produced as a result of producing said plurality of indented surfaces, toward said tube opening;
- a front bearing, located at a front end of said tube;
- and
- a rear bearing, located at a rear end of said tube.
(canceled)
The nibbling mechanism according to claim 23, said cutter moving mechanism being in the form of a rod, said rod lying substantially along said tube longitudinal axis, said cutter moving mechanism rotating within said tube about said tube longitudinal axis, said cutter moving mechanism comprising:
- a front journal, located at a front end of said rod, said front journal being located within said front bearing;
- a rear journal, located at a rear end of said rod, said rear journal being located within said rear bearing;
- a curved portion, located between said front journal and said rear journal, said curved portion substantially lying along said tube longitudinal axis;
- a cylindrical portion, coupled with said curved portion after said rear journal, said cylindrical portion to be coupled with said power shaft rotator;
- and
- a plurality of springs,
- wherein said curved portion is defined by a cross-section having a first axis and a second axis, said second axis being longer than said first axis, said first axis defining a low elevation portion of said curved portion and said second axis defining a high elevation portion of said curved portion.
(canceled)
The nibbling mechanism according to claim 14, said tube comprising:
- a tube opening, for inserting said cutter moving mechanism into said tube;
- a plurality of openings, for enabling said plurality of cutters to protrude from said tube into said cavity;
- a helical groove, for carrying a portion of said construction material, produced as a result of producing said plurality of indented surfaces, toward said tube opening;
- a plurality of bearings, located within said tube at a rear end of said tube, each one of said plurality of bearings being in the form of an arc of a circle;
- and
- a conical portion, located at a front end of said tube.
(canceled)
61-62. (canceled)
(canceled)
The nibbling mechanism according to claim 14, said tube comprising:
- a tube opening, for inserting said cutter moving mechanism into said tube;
- a helical groove, for carrying a portion of said construction material, produced as a result of producing said plurality of indented surfaces, toward said tube opening;
- a plurality of openings, for enabling said plurality of cutters to protrude from said tube into said cavity;
- and
- a plurality of tube indented surfaces, located within said tube.
(canceled)
The nibbling mechanism according to claim 31, said cutter moving mechanism comprising:
- a plurality of springs, located within respective ones of said plurality of tube indented surfaces;
- and
- a shaft, located within said tube, substantially lying along said tube longitudinal axis,
- said shaft comprising:
- a power shaft attachment portion, said power shaft attachment portion to be coupled with said power shaft rotator;
- and
- a polygonal portion;
- wherein said polygonal portion is in the form of a frustum of a pyramid, a base of said pyramid being located near said tube opening and an apex of said pyramid being located within said tube, said base and said apex defining a plurality of substantially flat surfaces;
- and
- wherein a cross-section of said polygonal portion is in the form of a polygon, each one of said plurality of cutters comprising:
- a cutting edge, substantially aligned with a respective one of said plurality of cutters;
- a flat portion;
- and
- a plurality of cutter outer surfaces.
(canceled)
The nibbling mechanism according to claim 32, wherein each one of said plurality of springs is also located between respective ones of said plurality of cutter outer surfaces, each one of said plurality of springs applying a spring force on said plurality of cutter outer surfaces such that a respective one of said flat portion makes contact with a respective one of said plurality of substantially flat surfaces,
- wherein said shaft moves linearly along said tube longitudinal axis, thereby causing each one of said respective substantially flat surfaces to slide relative to said respective one of said flat portion, and enabling a respective cutting edge of each one of said plurality of cutters to protrude from respective ones of said plurality of openings, thereby producing said plurality of indented surfaces.
The nibbling mechanism according to claim 32, wherein said polygon is selected from a list consisting of:
- square;
- rectangle;
- triangle;
- pentagon;
- and
- hexagon.
The nibbling mechanism according to claim 32, said shaft further comprising a plurality of grooves on an outer surface of said shaft, and said plurality of cutters further comprising a plurality of protrusions protruding from said flat portion, each one of said plurality of protrusions being located within respective ones of said plurality of grooves.
The nibbling mechanism according to claim 31, said tube further comprising:
- a tube symmetric plane, substantially intersecting said tube longitudinal axis;
- a thread symmetric plane, substantially intersecting said tube longitudinal axis, said thread symmetric plane being substantially normal to said tube symmetric plane;
- a first longitudinal half, located on a first side of said tube symmetric plane;
- a second longitudinal half, substantially symmetrically located on a second side of said tube symmetric plane;
- a plurality of spacers, located between said first longitudinal half and said second longitudinal half;
- and
- a plurality of bolts, for coupling said first longitudinal half with said second longitudinal half.
The nibbling mechanism according to claim 36, said first longitudinal half comprising:
- a first longitudinal half substantially flat surface substantially parallel with said tube symmetric plane;
- a first longitudinal cavity, located in said first longitudinal half substantially flat surface, lying substantially along said tube longitudinal axis;
- a first set of openings, said first set of openings lying substantially on said thread symmetric plane;
- a first set of internal threads, located at a first thread side of said thread symmetric plane,
- being substantially perpendicular to said tube symmetric plane;
- and
- a second set of internal threads located at a second thread side of said thread symmetric plane, being substantially perpendicular to said tube symmetric plane,
- said second longitudinal half comprising:
- a second longitudinal half substantially flat surface substantially parallel with said tube symmetric plane;
- a second longitudinal cavity, located in said second longitudinal half substantially flat surface, lying substantially along said tube longitudinal axis;
- a second set of openings, said second set of openings lying substantially on said thread symmetric plane;
- a first set of bolt openings, located at a first bolt side of said thread symmetric plane, being substantially perpendicular to said tube symmetric plane;
- and
- a second set of bolt openings, located at a second bolt side of said thread symmetric plane, being substantially perpendicular to said tube symmetric plane,
- wherein said plurality of bolts are screwed into each of said first set of internal threads, said second set of internal threads, said first set of bolt openings and said second set of bolt openings.
(canceled)
The nibbling mechanism according to claim 14, said tube comprising:
- a plurality of springs;
- a plurality of hinges, coupled with said plurality of springs and with said plurality of cutters, for enabling said plurality of cutters to rotate in said radial direction;
- a first element;
- and
- a second element,
- each of said first element and said second element comprising:
- a plurality of screw holes;
- a plurality of openings, for enabling said plurality of cutters to protrude from said tube into said cavity;
- a hollow, for inserting said cutter moving mechanism into said tube;
- a plurality of hinge spaces, for housing said plurality of hinges;
- a plurality of cutter spaces, for housing said plurality of cutters, respective ones of said plurality of cutter spaces being aligned with respective ones of said plurality of openings;
- and
- a plurality of spring pinholes, respectively located within said plurality of cutter spaces, for coupling half of said plurality of springs with said first element and for coupling the other half of said plurality of springs with said second element,
- wherein said plurality of openings on said first element are aligned with respective ones of said plurality of openings on said second element.
The nibbling mechanism according to claim 38, wherein said first element is coupled with said second element using a fastening element placed in said plurality of screw holes.
77-78. (canceled)
The nibbling mechanism according to claim 38, each one of said plurality of cutters comprising:
- a cutting surface;
- a curved surface;
- a flat surface;
- and
- at least one annular end,
- wherein each one of said plurality of hinges is inserted through a respective one of said at least one annular end and through a respective one of said plurality of springs.
(canceled)
The nibbling mechanism according to claim 38, wherein said cutter moving mechanism is defined by a cross-section with an elliptical-like shape, said elliptical-like shape comprising a major axis and a minor axis,
- wherein a cross-section of said hollow is shaped substantially similar to said elliptical-like shape.
The nibbling mechanism according to claim 38, wherein a distal end of said cutter moving mechanism comprises:
- a tapered section, said tapered section include a plurality of flat surfaces and a plurality of grooves;
- a straight section, coupled with said tapered section, said straight section having a shape substantially similar to the shape of said hollow;
- a tapered end section, coupled with said straight section;
- and
- a cap, coupled with said tapered end section.
The nibbling mechanism according to claim 43, each of said first element and said second element further comprising a pin hollow, each said pin hollow located at a proximal end of each of said first element and said second element, each said pin hollow comprising a respective slit,
- wherein said tube further comprises:
- a set of binding pins, each one of said set of binding pins being located within a respective one of each said pin hollow, each one of said set of binding pins comprising a spring receptacle;
- a set of binding pin springs, each one of said set of binding pin springs being located within a respective one of said spring receptacle;
- and
- a half ring, said half ring being inserted into said slit and being coupled with said set of binding pins and said set of binding pin springs,
- wherein said set of binding pins can slide into said plurality of grooves, thereby exerting an inward force towards said hollow on said cutter moving mechanism;
- wherein said cap section is first inserted into said hollow;
- wherein said tapered end section exerts a radial force sequentially on each respective one of said plurality of cutters, forcing said plurality of cutters in said radial direction away from said tube longitudinal axis toward said cavity, thereby producing said plurality of indented surfaces;
- and
- wherein when said cutter moving mechanism is retracted from said cavity, a proximal end of said straight section exerts a pulling force on said set of binding pins, thereby retracting said tube from said cavity.
(canceled)
The nibbling mechanism according to claim 38, wherein said plurality of openings are located at a distance from a proximal end and a distal end of each one of said first element and said second element.
87-88. (canceled)
Method for producing a plurality of indented surfaces in a cavity in a construction material, for anchoring an anchor in said cavity, the method comprising the procedures of:
- inserting a nibbling mechanism in said cavity in said construction material, said cavity and said nibbling mechanism each having a cylindrical body, said nibbling mechanism comprising a plurality of cutters;
- producing a plurality of indented surfaces within said cavity, by forcing said plurality of cutters in a radial direction away from a longitudinal axis of said nibbling mechanism, while rotating said nibbling mechanism;
- retracting said plurality of cutters away from said indented surfaces, back toward said longitudinal axis;
- and
- removing said nibbling mechanism from said cavity.
(canceled)
Dependencies are inferred from the claim text.