US 6,415,516 B1Granted

Power cutting device

OwnerJavier B. Tirado, Alicia Pradoinventors

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Abstract

A power cutting device for cutting material in tight places. The power cutting device includes a power cutting device comprising a housing. The housing includes a first end and a second end. A first shaft is securely coupled in and extending away from the housing. A handle member is integrally coupled to a second end of the housing. A motor is positioned generally in the housing. A power supply for powering the motor is operationally coupled to the motor. A first actuating element for starting the motor is positioned in the handle member and operationally coupled to the motor. A first gear is mechanically coupled to the motor. A blade supporting member for supporting a cutting a member is positioned generally in the housing and removably coupled to the first shaft. A cutting member for cutting a variety of materials is movably coupled to the blade supporting member and the first gear.

Claims12

Dependent claims

A power cutting device comprising:

a housing having a first end and a second end;
a first shaft, said shaft being securely coupled in and extending away from said housing;
a handle member being integrally coupled to said second end of said housing;
a motor, said motor being positioned generally in said housing;
a power supply for powering said motor, said power supply being operationally coupled to said motor;
a first actuating means for starting said motor, said first actuating means being positioned in said handle member and operationally coupled to said motor;
a first gear, said first gear being mechanically coupled to said motor;
a blade supporting member for supporting a cutting means, said blade supporting member being positioned generally in said housing and removably coupled to said first shaft;
and
a cutting means for cutting a variety of materials, said cutting means being movably coupled to said blade supporting member and said first gear;
said housing having a peripheral wall extending between said first and second ends, said peripheral wall of said housing having a top side, a bottom side, a first lateral side, a second lateral side, said first end having an opening therein;
a second shaft, a third shaft and a fourth shaft, each of said shafts having a first end and a second end, said first end of each of said shafts being securably coupled to an inner surface of said peripheral wall in said housing;
a second gear and a third gear, each of said gears having a peripheral edge having plurality of teeth coupled thereto and extending away therefrom, said fourth shaft extending through said second gear, said second gear being positioned such that said teeth of said second gear may engage said teeth of said first gear, wherein said first gear rotates said second gear, said third gear being securably coupled to said second end of said fourth shaft, said third gear having a peripheral edge having a groove therein, a plurality of teeth extending outwardly from said groove;
said blade supporting member comprising an elongated member having a first end, a second end, a first side, a second side and a peripheral edge, said first end of said blade supporting member being generally rounded, said second end of said blade supporting member being positioned generally in said housing such that said blade supporting member extends through said opening in said first end of said housing, said peripheral edge of said blade supporting member having a groove therein, wherein said peripheral edge of said elongated supporting member and said groove of said third gear define a cutting means path;
and
said cutting means comprising a plurality of links, each of said links being pivotally coupled to each other such that a loop of said links is defined.

13 more elements

A power cutting device comprising:

a housing, said housing having, a first end, a second end and a peripheral wall extending there between, said peripheral wall having a top side, a bottom side, a first lateral side, a second lateral side, said first end having an opening therein, said peripheral wall having a plurality of apertures therein, each of said apertures being positioned in said first lateral side and positioned generally adjacent to said second end of said housing, said peripheral wall tapering to said first end;
a first shaft, a second shaft, a third shaft and a fourth shaft, each of said shafts having a first end and a second end, said first end of each of said shafts being securably coupled to an inner surface of said peripheral wall in said housing, each of said shafts being orientated generally perpendicular to a longitudinal axis of a line extending through said first and said second ends of said housing and parallel to a plane of said bottom side of said housing, said first shaft being positioned adjacent to said first end and generally nearer said top side of said housing than said bottom side of said housing, said second shaft being positioned generally adjacent to said first end of said housing and positioned generally nearer said bottom side of said housing than said top side of said housing, said third shaft being positioned generally adjacent to said first and second shafts, said fourth shaft being positioned generally adjacent to said third shaft;
a handle member, said handle member comprising a base having a first leg and a second leg being integrally coupled thereto and extending away from said base, each of said legs being integrally coupled to said second end of said housing, said base having an inner surface and an outer surface, said inner surface of said base having a notch therein, said notch being positioned generally adjacent to said first leg;
a motor, said motor being positioned generally in said housing and positioned generally adjacent to said second end of said housing, said motor being securably coupled to said peripheral wall of said housing, said motor comprising an electric motor;
a power supply for powering said motor, said power supply being operationally coupled to said motor, said power supply comprising a cord;
a first actuating means for starting said motor, said first actuating means being positioned in said notch of said inner surface of said handle member, said first actuating means being operationally coupled to said motor, said first actuating means comprising a switch;
a second actuating means for selectively varying the speed of said motor, said second actuating means extending outwardly through said handle member, said second actuating means being operationally coupled to said motor;
a plurality of gears, each of said gears having a peripheral edge having a plurality of teeth coupled thereto and extending away therefrom, said plurality of gears including;
a first gear, said first gear being mechanically coupled to said motor, wherein said motor is adapted to rotate said first gear;
a second gear, said fourth shaft extending through said second gear, said second gear being positioned such that said teeth of said second gear may engage said teeth of said first gear, wherein said first gear rotates said second gear;
a third gear, said third gear being securably coupled to said second end of said fourth shaft, said third gear having a peripheral edge having a groove therein, a plurality of teeth extending outwardly from said groove;
a blade supporting member for supporting a cutting means, said blade supporting member comprising an elongated member having a first end, a second end, a first side, a second side and a peripheral edge, said first end of said blade supporting member being generally rounded, said second end of said blade supporting member being positioned generally in said housing such that said blade supporting member extends through said opening in said first end of said housing, said blade supporting member having an elongated hole and a pair of elongated slots therein, each of said slots being positioned generally adjacent to said second end of said blade supporting member, said first and second shafts of said housing each having a size and shape adapted for being removably positioned in one of said elongated slots, a pair of fastening means for securing said blade supporting member to said first and said second shaft, each of said fastening means being securably coupled to a free end said first and second shafts, said elongated hole being positioned generally between said pair of elongated slots and generally nearer said second end of said blade supporting member than each of said elongated slots, said third shaft of said housing having a size and shape adapted for extending into said elongated hole, said peripheral edge of said blade supporting member having a groove therein, wherein said peripheral edge of said elongated supporting member and said groove of said third gear define a cutting means path;
and
a cutting means for cutting a variety of materials, said cutting means comprising a plurality of links, each of said links being pivotally coupled to each other such that a loop of said links is defined, each of said links having a bottom portion and a top portion, each of said top portions comprising a blade member extending away from said bottom portion, each of said bottom portions comprising a block member, each of said block members being movably positionable in said cutting means path, a bottom surface of each of said bottom portions having a niche therein for selectively receiving one of said teeth in said third gear;
wherein said motor rotates said first gear such that said second gear rotates said third gear wherein said cutting means is moved about said cutting means path.

12 more elements

Dependencies are inferred from the claim text.