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US4926537A Expired / Lapsed US ⏱️ 0.0 years remaining

Tie rod and ball joint separator

Assignee: Lisle Corp
•
Filing: 1989-10-12
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Granted: 1990-05-22
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Expires: 2009-10-12
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Abstract

Abstract An automotive separating tool that is used for separating ball joint connections, tie rods from steering arms, and other similar parts and that has wedge shaped head, with a pair of projecting prongs, and a handle. The head and handle are removably secured together by a threaded connection so that different sized heads may be used either with a handle designed to be struck by a hammer or with a handle designed to be driven by a conventional air hammer.

Inventors

  • 👤 James L. Pool

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 17:17
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/0035; B25B27/02; B25B27/026; B25B27/06; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53909; Y10T29/5393

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 297 words
In an automotive separating tool for tie rods, and ball joint connections, the separating tool including: a wedge-shape head that has a first end facing in one direction and a second end facing in the other, opposite direction, that has a pair of tapered spaced-apart prongs extending from the one end of the head in the one direction, with the tapered portion of the prongs creating a wedge to be forced between the parts to be separated; and an elongated handle that extends from the second end of the head in the other direction, said handle having a first end and a distal end, said distal end being adapted to be struck in the one direction during the separating of the parts; the shape of the distal end of the handle being one of either a shape where the distal end may be struck by a hammer or a shape where the distal end may be driven by an air hammer; the improvement comprising: a threaded recess formed in the second end of the head with the threaded recess having a tapered bottom; and a threaded projection formed on the first end of a handle, with the pilot end of the threaded projection being tapered and with the threaded projection being removably threaded into and received within the threaded recess so that the handle and head are connected together during the use of the tool to separate parts, wherein the depth of the threaded recess is less than the length of the threaded projection so that when recess and said projection are threaded together, said recess and said projection tapered surfaces matiningly engage and firmly abut each other to act as means for reduction of the stress on the threads when the handle is driven or hammered.
Claim 2
Dependent Claim 297 words
In an automotive separating tool for tie rods, and ball joint connections, the separating tool including: a wedge-shape head that has a first end facing in one direction and a second end facing in the other, opposite direction, that has a pair of tapered spaced-apart prongs extending from the one end of the head in the one direction, with the tapered portion of the prongs creating a wedge to be forced between the parts to be separated; and an elongated handle that extends from the second end of the head in the other direction, said handle having a first end and a distal end, said distal end being adapted to be struck in the one direction during the separating of the parts; the shape of the distal end of the handle being one of either a shape where the distal end may be struck by a hammer or a shape where the distal end may be driven by an air hammer; the improvement comprising: a threaded recess formed in the second end of the head with the threaded recess having a tapered bottom; and a threaded projection formed on the first end of a handle, with the pilot end of the threaded projection being tapered and with the threaded projection being removably threaded into and received within the threaded recess so that the handle and head are connected together during the use of the tool to separate parts, wherein the depth of the threaded recess is less than the length of the threaded projection so that when recess and said projection are threaded together, said recess and said projection tapered surfaces matiningly engage and firmly abut each other to act as means for reduction of the stress on the threads when the handle is driven or hammered.
Claim 3
Dependent Claim 44 words
The improved separating tool of claim 1 wherein the handle and the head may be readily separated by unthreading the connection between the threaded recess and the threaded projection so that the handle and head may be used with other heads and handles, respectively.
Claim 4
Dependent Claim 50 words
The improved separating tool of claim 1 wherein the threaded recess is formed within the head and the threaded projection is integrally formed on the first end of handle, with the longitudinal axis of the handle is co-axial with the longitudinal axis of the threaded projection and the threaded recess.
Claim 5
Dependent Claim 340 words
In an automotive separating tool for tie rods, and ball joint connections, the separating tool including: a wedge-shape head that has a first end facing in one direction and a second end facing in the other, opposite direction, that has a pair of tapered spaced-apart prongs extending from the one end of the head in the one direction, with the tapered portion of the prongs creating a wedge to be forced between the parts the second end of the head in the other direction, said handle having a first end and a distal end, said distal end being adapted to be struck in the one direction end during the separating of the parts the shape of the distal end of the handle being one of either a shape where the distal end may be struck by a hammer or a shape where the distal end may be driven by an air hammer; the improvement comprising: a connection means between said second end of the head and said first end of the handle, whereby one end portion of the connection means includes a threaded recessed having a tapered bottom generally conical in shape; and a second portion of the connection means includes a threaded projection a pilot end of the threaded projection being tapered and having a compatible generally frustoconical shape for cooperation and mating engagement with the conical surface of the tapered bottom to act as means for reducing the stress on the threads when the handle is struck or driven to drive the head, and with the threaded projection being removably threaded into and received within the threaded recess so that the handle and head are connected together during use of the tool, wherein the depth of the threaded recess is less than the length of the threaded projection so that when the threaded projection is threaded into and received within the threaded recess, the pilot end of the threaded projection firmly abuts the tapered bottom of the threaded recess so as to reduce the stress on the threads.
Claim 6
Dependent Claim 340 words
In an automotive separating tool for tie rods, and ball joint connections, the separating tool including: a wedge-shape head that has a first end facing in one direction and a second end facing in the other, opposite direction, that has a pair of tapered spaced-apart prongs extending from the one end of the head in the one direction, with the tapered portion of the prongs creating a wedge to be forced between the parts the second end of the head in the other direction, said handle having a first end and a distal end, said distal end being adapted to be struck in the one direction end during the separating of the parts the shape of the distal end of the handle being one of either a shape where the distal end may be struck by a hammer or a shape where the distal end may be driven by an air hammer; the improvement comprising: a connection means between said second end of the head and said first end of the handle, whereby one end portion of the connection means includes a threaded recessed having a tapered bottom generally conical in shape; and a second portion of the connection means includes a threaded projection a pilot end of the threaded projection being tapered and having a compatible generally frustoconical shape for cooperation and mating engagement with the conical surface of the tapered bottom to act as means for reducing the stress on the threads when the handle is struck or driven to drive the head, and with the threaded projection being removably threaded into and received within the threaded recess so that the handle and head are connected together during use of the tool, wherein the depth of the threaded recess is less than the length of the threaded projection so that when the threaded projection is threaded into and received within the threaded recess, the pilot end of the threaded projection firmly abuts the tapered bottom of the threaded recess so as to reduce the stress on the threads.

References Cited (Backward Citations)

US797804A Cited
US1388029A Cited
US3208134A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-05-21 1993-11-20 1994-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-05-21 1997-11-20 1998-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-05-21 2001-11-20 2002-05-22 $7700.00 Window Closed / Lapsed

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