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US 6,786,556 B2Granted
Concrete grinder apparatus
OwnerJoseph E. Dueinventor
Life of this patent
Estimating the term…
Abstract
A concrete grinding apparatus for use with a hand-held concrete grinder that can be detachably mounted in either a right-facing orientation or a left-facing orientation. The apparatus providing a variable wheelbase to modify grinder pressure acting upon a working surface. The apparatus further providing a mechanism to adjust the levelness of the hand-held grinder.
Claims44
A grinding apparatus comprising:
- a) a cart having a front end and a back end;
- b) a hand-held grinder mounted to the cart, the hand-held grinder being removable from the cart as a separate, operable unit, the hand-held grinder including:
- i) an elongated housing having a handle portion;
- ii) a grind head interconnected to the elongated housing;
- and
- iii) an operating switch electrically connected to a power cord;
- c) handles located at the back end of the cart;
- d) a vacuum mounted on the cart between the front and back ends;
- and
- e) a vacuum bag support located between the front and back ends of the cart.
7 more elements
A grinding apparatus for grinding a working surface, the grinding apparatus comprising:
- a) a cart having a front region and a rear region, the cart including:
- i) a base having a first side and a second side extending between the front and rear regions;
- ii) at least one handle located at the rear region of the cart;
- and
- iii) a moveable wheel coupled to an axle;
- b) a grinder mounted at the front region of the cart, the grinder including a bottom grinding surface;
- and
- c) a vacuum assembly mounted between the front region and the rear region of the cart, the vacuum assembly including a collection structure;
- d) wherein the moveable wheel is positionable in a plurality of locations, including a first location wherein a majority of the collection structure of the vacuum is positioned forward of the axle and a second location wherein the majority of the collection structure of the vacuum is positioned rearward of the axle.
6 more elements
A cart for using with a hand-held grinder, the cart comprising:
- a) a frame including a left side and a right side;
- b) a grinder mount for securing the hand-held grinder to the frame, the grinder mount being configured to allow the grinder to be mounted in either a left-facing or right-facing orientation.
A method of grinding a concrete working surface, the method comprising:
- a) providing a grinding apparatus, the grinding apparatus including:
- i) a cart;
- ii) a grinder;
- and
- iii) a vacuum and a bag;
- b) selecting one of a left-facing orientation and a right-facing orientation in which to mount the grinder;
- c) mounting the grinder in the selected orientation.
4 more elements
A method of grinding a concrete working surface, the method comprising:
- a) providing a grinding apparatus, the grinding apparatus including:
- i) a cart having a front region and a rear region, the cart including:
- 1) a plurality of axle mounting locations positioned adjacent the rear region of the cart;
- 2) an axle configured to cooperate with each of the plurality of axle mounting locations;
- and
- 3) wheels mounted to the axle;
- ii) a grinder mounted to the front region of the cart;
- iii) a vacuum and a bag, the bag being located at the rear region of the cart, the bag being in communication with the vacuum, the vacuum being in communication with the grinder;
- iv) wherein the wheels and axle are positionable in one of the plurality of axle mounting locations, including locations wherein a majority of the bag is positioned forward of the axle and locations wherein the majority of the bag is positioned rearward of the axle;
- b) selecting a first axle mounting location and positioning the axle and wheels at a first selected axle mounting location;
- c) operating the grinding apparatus;
- d) monitoring the contents of the bag and the operation of the grinder to determine whether the appropriate amount of pressure is being applied to the working surface;
- e) re-positioning the axle and wheels at a second selected axle mounting location, when the contents of the bag reaches an amount, to re-adjust the amount of pressure being applied to the working surface.
10 more elements
A grinding apparatus comprising:
- a) a cart having a front end and a back end,
- b) a hand-held grinder mounted to the cart;
- c) handles located at the back end of the cart;
- d) a vacuum mounted on the cart between the front and back ends;
- e) a vacuum bag support located between the front and back ends of the cart;
- f) wherein the cart includes a mounting configuration for mounting the hand-held grinder in either a left-facing orientation or a right-facing orientation.
3 more elements
A grinding apparatus comprising:
- a) a hand-held grinder;
- b) a cart having a front end and a back end, the cart further including a mounting arrangement that detachably mounts the hand-held grinder to the front end of the cart, the mounting arrangement including:
- i) a first mounting mechanism and a second mounting mechanism, the first mounting mechanism fixedly mounting one end of the grinder in a laterally offset position from the cart, the second mounting mechanism being adapted to pivotally position an opposite end of the grinder at a selected vertical position to adjust the flatness of a bottom grinding surface of the hand-held grinder;
- c) handles located at the back end of the cart;
- d) a vacuum mounted on the cart between the front and back ends;
- and
- e) a vacuum bag support located between the front and back ends of the cart.
4 more elements
A grinding apparatus for grinding a working surface, the grinding apparatus comprising:
- a) a cart having a front region and a rear region, the cart including:
- i) a base having a first side and a second side extending between the front and rear regions;
- ii) at least one handle located at the rear region of the cart;
- iii) a moveable wheel coupled to an axle a plurality of axle mounting locations, the axle mounting locations including:
- 1) at least a first and a second hole located along the first side of the base;
- and
- 2) at least a first and a second hole located along the second side of the base;
- 3) wherein the first hole along the first side of the base corresponds to the first hole along the second side of the base, the corresponding first holes defining a first axle mounting location;
- iv) at least one wheel mounted to an axle, the axle being positioned at one of the axle mounting locations;
- b) a grinder mounted at the front region of the tart, the grinder including a bottom grinding surface;
- and
- c) a vacuum assembly mounted between the front region and the rear region of the cart.
9 more elements
A grinding apparatus, comprising:
- a) a cart having a front end, a back end, and sides extending between the front end and the back end;
- b) a hand-held grinder detachably mounted to the front end of the cart, the grinder including a grinding surface;
- c) wherein the grinder is mounted to the cart such that the grinding surface of the grinder laterally extends from only one of the sides of the cart.
Dependencies are inferred from the claim text.