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US3881376A Expired / Lapsed US ⏱️ 0.0 years remaining

Socket ejecting mechanism for ratchet wrenches

Assignee: WRIGHT TOOL AND FORGE Co
•
Filing: 1974-03-05
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Granted: 1975-05-06
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Expires: 1994-03-05
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Abstract

Abstract A lever-type socket wrench with a reversing ratchet for driving interchangeable socket heads. One end of the wrench serves as a handle and the other end is provided with internal ratchet teeth formed about the axis of turn and with a rotatable socket carrier having a protruding stud for receiving the socket head. The ratchet teeth are engaged by a double pawl element that is urged to either a forward drive or reverse drive position by a selector element. A socket head ejector plunger is mounted in the socket carrier for limited sliding movement parallel to the socket axis and is adapted when pressed by the tool operator to positively eject the socket head from the stud.

Inventors

  • 👤 Richard B Wright

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 19:56
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0057; B25B13/00; B25B13/46; B25B13/461; B25B13/462; B25B13/465

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 107 words
A ratchet wrench for driving interchangeable socket heads removably attachable thereto, comprising: a lever, a socket carrier mounted in an end of said lever for rotation relative to said lever and including a stud extending downwardly from said lever for receiving and retaining said socket head, ratchet drive means operatively located between said socket carrier and said lever, a socket head ejector element extending through said socket carrier for limited endwise sliding movement parallel to the axis of said rotation and adapted to engage a socket received on said stud and to be depressed by the tool user to positively eject said socket head from said stud.
Claim 2
Dependent Claim 107 words
A ratchet wrench for driving interchangeable socket heads removably attachable thereto, comprising: a lever, a socket carrier mounted in an end of said lever for rotation relative to said lever and including a stud extending downwardly from said lever for receiving and retaining said socket head, ratchet drive means operatively located between said socket carrier and said lever, a socket head ejector element extending through said socket carrier for limited endwise sliding movement parallel to the axis of said rotation and adapted to engage a socket received on said stud and to be depressed by the tool user to positively eject said socket head from said stud.
Claim 3
Dependent Claim 97 words
A ratchet wrench as defined in claim 1 wherein said ejector element is of elongated cylindrical shape with upper end and a lower end adjacent said stud, and has an axial length substantially greater than the axial thickness of said socket carrier and wherein said ejector element is axially slidable between a retracted limit position with said upper end projecting outwardly from said socket carrier and adapted to be engaged and depressed by a tool user, and an extended limit position with said lower end projecting outwardly sufficiently to positively eject a socket head from said stud.
Claim 4
Dependent Claim 33 words
A ratchet wrench as defined in claim 2 including stop means located within said socket carrier and operatively engageable with said ejector element to limit endwise sliding movement thereof to said limit positions.
Claim 5
Dependent Claim 49 words
A ratchet wrench as defined in claim 3 wherein said ejector element has a central neck portion of lesser diameter than said end portions and wherein said stop means projects radially inward toward said neck portion to engage said ejector element at the opposite ends of said neck portion.
Claim 6
Dependent Claim 28 words
A ratchet wrench as defined in claim 1 wherein said ratchet drive means comprises a reversing ratchet drive and a pivotable selector element located on said socket carrier.
Claim 7
Dependent Claim 28 words
A ratchet wrench as defined in claim 5 wherein said ejector element limits the pivotal movement of said selector element between its forward drive and reverse drive positions.
Claim 8
Dependent Claim 198 words
A wrench assembly with a reversing ratchet drive for a socket head removably attached thereto, comprising: a lever adapted to be turned about the axis of turn of said socket head and including a handle at one end, and means defining internal ratchet teeth in the other end about said axis of turn, a socket carrier mounted in said other end for rotation relative to said lever about said axis of turn and including: a stud extending downwardly from said lever for receiving and retaining said socket head, a double pawl element mounted in said socket carrier for pivotaL movement between forward drive and reverse drive engagement with said ratchet teeth, selector means operatively connected to said socket carrier and pivotable about said axis of turn between a position urging said pawl element to said forward drive position and a position urging said pawl element to said reverse drive position, a socket head ejector element extending through said socket carrier for limited endwise sliding movement parallel to said axis of turn and adapted to engage a socket received on said stud and to be depressed by the tool user to positively eject said socket head from said stud.
Claim 9
Dependent Claim 198 words
A wrench assembly with a reversing ratchet drive for a socket head removably attached thereto, comprising: a lever adapted to be turned about the axis of turn of said socket head and including a handle at one end, and means defining internal ratchet teeth in the other end about said axis of turn, a socket carrier mounted in said other end for rotation relative to said lever about said axis of turn and including: a stud extending downwardly from said lever for receiving and retaining said socket head, a double pawl element mounted in said socket carrier for pivotaL movement between forward drive and reverse drive engagement with said ratchet teeth, selector means operatively connected to said socket carrier and pivotable about said axis of turn between a position urging said pawl element to said forward drive position and a position urging said pawl element to said reverse drive position, a socket head ejector element extending through said socket carrier for limited endwise sliding movement parallel to said axis of turn and adapted to engage a socket received on said stud and to be depressed by the tool user to positively eject said socket head from said stud.

References Cited (Backward Citations)

US271549A Cited
US1509680A Cited
US2607620A Cited
US3138984A Cited
US3393587A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-05-05 1978-11-04 1979-05-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-05-05 1982-11-04 1983-05-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-05-05 1986-11-04 1987-05-06 $7700.00 Window Closed / Lapsed

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