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US 11,235,450 B2Granted
Bushing handle
AssigneeCarr Lane Manufacturing Co.
InventorsNancy Jerrell Ruth Shepard, Joshua Matthew Herschbach, Colin Walker Frost
Life of this patent
Estimating the term…
Abstract
A bushing handle for use with a renewable bushing. The bushing handle facilitates a quick-change configuration by using a liner bushing disposed in a through bore. The liner bushing can accept a plurality of different renewable bushings having various inner diameters and other characteristics, eliminating the need to stock and store a multitude of different bushing handles. The liner bushing may be a lock liner, which facilitates the quick-change function, and provides a ground inner diameter, which is more resistant to wear and tear than the light metal construction of the handle itself.
Claims5
A bushing handle comprising:
- a handle portion in the configuration of a rectangular prism having a rounded distal end;
- a head portion opposing said handle portion and generally in the configuration of a rectangular prism having a rounded distal end, said head portion having a top surface and an opposing bottom surface;
- a through bore disposed through said head portion from said top surface to said bottom surface, an axis of said through bore being generally perpendicular to a major plane of said head portion, and said through bore sized and shaped to accept a liner bushing;
- a liner bushing permanently disposed in said through bore, an axis of said liner bushing being coaxial with said axis of said through bore, and said liner bushing having a lock lip configured to accept a shoulder of a renewal bushing;
- and
- an angled portion disposed between said head portion and said grip portion;
- wherein said angled portion is attached to said head portion at an angle effective to cause, when said bottom surface of said head portion is disposed generally coplanar with a work surface, said angled portion to be disposed at about a 45° angle to said work surface;
- and
- wherein said handle portion is attached to said angled portion at an angle effective to cause, when said bottom surface of said head portion is disposed generally coplanar with said work surface, said handle portion to be disposed at about a 15° angle to said work surface.
6 more elements
A method of performing a drilling operation comprising:
- providing a bushing handle comprising:
- a handle portion in the configuration of a rectangular prism having a rounded distal end;
- a head portion opposing said handle portion and generally in the configuration of a rectangular prism having a rounded distal end, said head portion having a top surface and an opposing bottom surface;
- a through bore disposed through said head portion from said top surface to said bottom surface, an axis of said through bore being generally perpendicular to a major plane of said head portion, and said through bore sized and shaped to accept a liner bushing;
- a liner bushing permanently disposed in said through bore, an axis of said liner bushing being coaxial with said axis of said through bore, and said liner bushing having a lock lip configured to accept a shoulder of a renewal bushing;
- and
- an angled portion disposed between said head portion and said grip portion;
- wherein said angled portion is attached to said head portion at an angle effective to cause, when said bottom surface of said head portion is disposed generally coplanar with a work surface, said angled portion to be disposed at about a 45° angle to said work surface;
- and
- wherein said handle portion is attached to said angled portion at an angle effective to cause, when said bottom surface of said head portion is disposed generally coplanar with said work surface, said handle portion to be disposed at about a 15° angle to said work surface;
- providing a plurality of renewable bushings adapted to be coaxially seated in said liner bushing, each of said renewable bushings having a central bore and at least one shoulder;
- selecting a first renewable bushing from said plurality of renewable bushings;
- seating said first bushing coaxially in said liner bushing;
- locking said seated first bushing in said liner bushing at a first shoulder of said at least one shoulders by twisting said seated first bushing to place said first shoulder beneath between said lock lip;
- using said handle portion, disposing said seated first bushing in a work surface;
- performing a drilling operation through said central bore of said selected first bushing when said seated first bushing is disposed in said work surface.
13 more elements
Dependencies are inferred from the claim text.