High pressure, hydraulic hand tool for cutting hooves on horses or other applications

• US 20100236079A1
• Filed: 03/17/2009
• Published: 09/23/2010
• Est. Priority Date: 03/28/2008
• Status: Active Grant

• Current Assignee: William L. Bush
• Original Assignee: William L. Bush
• Inventors: Bush, William L.
• Granted Patent: US 8,176,636 B2
• Time in Patent Office: Days
• US Class Current: 30/180
• CPC Class Codes: A01L 15/00 Apparatus or use of substances for the care of hoofs
• CPC Class Codes: B26B 17/006 having cutting edges parallel to a pivot axis
• CPC Class Codes: B26B 17/02 with jaws operated indirectly by the handles, e.g. through cams or toggle levers
• CPC Class Codes: Y10T 83/04 Processes
• CPC Class Codes: Y10T 83/081 With randomly actuated stopping means

Abstract

A fully structurally integrated high pressure, hydraulic hand-held tool for cutting dense materials, including the hooves on horses. The tool includes a handle, with a hydraulic flow line provided centrally there through, a handle chamber integrated into the upper end of the handle, the handle chamber comprising a piston, so that hydraulic fluid as exerted into the handle chamber, forces said piston upwardly and out of the handle chamber into the piston housing at the end of the piston distal to the handle chamber, and wherein at the upper end of the tool in the piston housing are a pair of mounts, said pair of mounts pivotally connect to a pair of opposing jaws, with each jaw having a cutting blade applied thereto, and wherein links and a clevis secure to the upper end of the piston, and pivotally connect to the outer back edges of the jaws, such that applying hydraulic pressure from about 3000 psi to about 6000 psi to the lower end of the piston chamber, the piston is urged upwardly and out of the handle chamber, upon actuation of the tool, and the jaw cutting blades and their edges are forced to pivot inwardly toward each other, thereby being positioned into a cutting action, and wherein the hydraulic pressure is released, the piston is forced by spring biasing downwardly within the piston housing and back into the handle chamber, and wherein said movement of said piston back into the handle chamber causes the jaws to reverse and separate from each other and to become positioned into their original pre-cut position.

Claims

1. A high pressure, hydraulic hand tool for use in dense materials cutting applications, said hand tool having a handle, a handle chamber positioned within the handle, a housing integrated at the upper end of the handle, said housing having a piston chamber therein, wherein said piston is slidably located within the piston chamber, and is subject to a high pressure hydraulic fluid motor for urging said piston upwardly and out away from the handle chamber, during a cutting action, but is spring biased downwardly and back toward the handle chamber, for deactivating the blades of the hand tool, after a cut has been made, and wherein a series of links and clevis attached to the upper end of the piston, and are provided for urging the outer back edges of the tool cutting jaws upwardly, and inwardly, for directing the cutting blades into a severing function, and the tool jaws are also pivotally mounted to the upper edge of the tool housing, to furnish a pivot point about which the jaws pivot, when actuated into a cutting function.

3. A method for cutting a dense material comprising providing a high pressure hydraulic hand tool as set forth in either of claims 1 or 2, and applying said tool to said dense material to achieve a cutting effect, wherein said dense material is selected from the group consisting of keratinaceous animal tissue, bone, wire, metal, and a plant tissue.

4. The high pressure hydraulic hand tool as set forth in either of claims 1 or 2, further comprising a safety device for preventing injury to the operator or to an animal to which such device is applied.

5. The high pressure hydraulic hand tool as set forth in claim 4, wherein said safety device is selected from the group consisting of a moisture sensor, sonic means for detecting density, and a optical means for detecting electromagnetic variations in materials to which said tool is applied.

6. The high pressure hydraulic hand tool of claim 4 wherein said safety device includes one of a capacitance and resistance, in contact with the charged tool jaws of the cutting tool which in combination with a microprocessor, can detect the presence of a human touching said jaws to cause a deactivation of the hydraulic motor and prevent further activation of said cutting tool.

7. The high pressure hydraulic hand tool of claim 1 wherein said tool cutting jaws are L shaped in configuration, including upwardly extending jaw portions, and integrally laterally extending base portions, the base portions of each cutting jaw being pinned together through the usage of a pivot pin, while the lower ends of the upwardly extending jaw portions are connected by pivot pins to the respective clevis.

8. The high pressure hydraulic hand tool of claim 1 wherein said housing includes said piston chamber therein, the upper edge of said piston chamber be beveled, to facilitate the application of the piston therein during assembly.

9. The high pressure hydraulic hand tool of claim 8 wherein said piston includes at least one o-ring to seal the piston within the piston chamber, and to prevent the passage of high pressure hydraulic fluid there past during actuation of the said tool.

10. The high pressure hydraulic hand tool of claim 9 and including at least one oil port provided in the upper region of the housing, for the injection of lubricating fluid therein during usage of the said tool.

11. The high pressure hydraulic hand tool of claim 1 wherein said handle includes insulation means provided along its exterior length, to insulate the user'"'"'s hand from the tool during application and prevent the activation of a safety device during usage of the said tool.

12. The high pressure hydraulic hand tool of claim 1 and including both circuit lines and hydraulic lines connected between the circuit board and the hydraulic motor, respectively, into the handle of the hydraulic hand tool, to provide for the necessary charge for operations of the safety device, and to provide high pressure hydraulic fluid into the piston chamber during actuation of the cutting tool during usage.

2. A high pressure, hydraulic hand tool for cutting hooves of horses, or other materials, including said tool having a handle, a housing integrated at the upper end of the handle, said housing having a piston chamber therein, wherein a piston is slidably located within the piston chamber, and is subject to the high pressure hydraulic fluid for urging it upwardly, during a cutting action, but is spring bias downwardly, for deactivating the tool, after a cut has been made, links and clevis attach to the upper end of the piston, and are provided for urging the outer back edges of the tool cutting jaws upwardly, and inwardly, for directing the cutting blades into a severing function, and the tool jaws are also pivotally mounted to the upper edge of the tool housing, to furnish a pivot point about which the jaws pivot, when actuated into a cutting function.