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| Number | Title | Issue Date |
| 7252023 | Locking pliers for detachably lockingly capturing a chain thereto An improved chain locking pliers being of the type having a fixed handle, a movable handle, a fixed jaw affixed to the fixed handle for movement therewith, a movable jaw pivotally mounted to both the movable handle and the fixed handle, and apparatus for holding a c... | 08/07/2007 |
| 6978701 | Wrench A wrench has a head portion (10) adapted to engage and apply torque to a workpiece, including a ring member (14) which surrounds the workpiece and has a fixed end (16) and a free end (18) such that, when the ring engages a workpiece and a... | 12/27/2005 |
| 6427562 | Chain wrench The invention comprises a chain wrench having a mounting plate with an elongated link chain with one end of the chain pivotally mounted to the plate and extending outward from the plate one edge of the plate. The plate has a plurality of spaced lugs along... | 08/06/2002 |
| 6264406 | Support for mounting a tool on a pipe A tool support for mounting a working tool on a pipe comprises a base having inverted V-shaped saddle portions engaging the pipe and a clamping chain extending between opposite sides of the base for clamping the base on a pipe. A first end of the chain is... | 07/24/2001 |
| 5960679 | Ratcheting open-end wrench A ratcheting, open-end wrench concurrently engages more than half the corners of a nub during torquing. In preferred embodiments a wrench has a contacting cavity for receiving and torquing a nut, bolt head or other angularized nub. A chain carries a plura... | 10/05/1999 |
| 5320021 | Universal chain wrench and tools A chain wrench for engagement around a circumference of a threaded workpiece such as a pipe and the like and disposed at a right angle to the length of the workpiece. The chain wrench may be used for tightening the threaded workpiece on a threaded coupler... | 06/14/1994 |
| 5040439 | Adjustable wrench This application discloses an improvement for a conventional open-end adjustable wrench comprising a recess in the movable jaw of the wrench adapted to receive the first end of a chain. Spring biasing means on the first end of the chain to releasably reta... | 08/20/1991 |
| 4796493 | Apparatus and method for unscrewing a bicycle chain sprocket A tool for unscrewing a bicycle chain sprocket from a bicycle sprocket cluster which can be used for roadside emergency repairs is disclosed. The tool has a hook which engages a portion of the bicycle frame, and a length of engagement chain which engages ... | 01/10/1989 |
| 4718314 | Power chain wrench Disclosed herein is a power tongs, including a rotary head and a circular plate loosely mounted on the head, with a flexible member secured at one end to the plate. The flexible member is wrapped around the pipe to be torqued and the free end of the membe... | 01/12/1988 |
| 4598615 | Adjustable wrench An adjustable wrench for use in rotating screw-on oil filters and the like. The wrench has a strap for encircling the filter, and a lever for tightening the strap about the filter. The lever has a first end attached to a first end of the strap, an interme... | 07/08/1986 |
| 4257288 | Wrench A wrench particularly adapted for removing automotive oil filters and similar cannister type filters without crushing the relatively thin outer shell of the filter. The wrench includes a relatively wide, flat, flexible metal strap having a length less tha... | 03/24/1981 |
| 4171652 | Chain wrench This device is a chain wrench for loosening and tightening screw thread engaging items from base members. It consists of a thin handle whose length is approximately six times its width. Chain links are permanently attached to the handle forming a closed l... | 10/23/1979 |
| 4167128 | Apparatus for imparting torsion to a tubular member An apparatus for imparting torsion to a tubular member, including a body member, an arm member, a saddle member, and a loop means such as a chain. Torsion is imparted to the tubular member by inducing tension into the chain entrained around the tubular me... | 09/11/1979 |
| 4138910 | Cleated chain wrench A chain wrench has a handle having a chain element pivoted to the handle by a pair of links to permit passage of the free end of the chain between the links, whereby the chain may be wrapped in full circumscribing relation to a workpiece. The handle has a... | 02/13/1979 |
