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US3868983A Expired / Lapsed US ⏱️ 0.0 years remaining

Hand tool

Assignee: Xerox Corp
•
Filing: 1973-12-07
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Granted: 1975-03-04
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Expires: 1993-12-07
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Abstract

Abstract An improved hand tool for rotating screws and other articles of like character which are designed to be turned or rotated in an infinitely fine or coarse rotation without disengaging or repositioning the grip of the driving tool. The tool includes an elongated driven member having a replaceable bit in the form of a screw driving member or the like at one end thereof. At the other end of the tool is a handle made up of a plurality of drive rolls each having one way clutch members engaging the driven member. One of the clutch members engages the driven member upon rotation in a clockwise direction and disengages when rotated in a counterclockwise direction. The other clutch member engages upon rotation in a counterclockwise direction and disengages when rotated in a clockwise direction. By positioning the handgrip on the drive rolls rotation may be provided to that clutch member for rotation and engagement of the driven member in a desired direction for very fine or alternatively coarse movement of the screws or other members of like character.

Inventors

  • 👤 Dean R Newcomb

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 19:08
CPC Classifications
B; B25; B25B; B25B15/00; B25B15/02; B25B15/04

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 75 words
Hand tool apparatus comprising an elongated driven member adapted to receive a blade for driving a screw or the like, segmented handle means including a plurality of drive rolls each having a passage therethrough, said passages being aligned to receive said driven member, said drive rolls each including one way clutches to engage said driven member upon rotation in opposing directions and to disengage said driven member upon reversing the direction of the rotation thereof.
Claim 2
Dependent Claim 75 words
Hand tool apparatus comprising an elongated driven member adapted to receive a blade for driving a screw or the like, segmented handle means including a plurality of drive rolls each having a passage therethrough, said passages being aligned to receive said driven member, said drive rolls each including one way clutches to engage said driven member upon rotation in opposing directions and to disengage said driven member upon reversing the direction of the rotation thereof.
Claim 3
Dependent Claim 19 words
Apparatus according To claim 1 including a removable retaining means for holding the drive rolls onto said driven member.
Claim 4
Dependent Claim 25 words
Apparatus according to claim 1 wherein said drive rolls include an outer cylindrical member made of an elastomeric material and formed with a knurled pattern.
Claim 5
Dependent Claim 19 words
Apparatus according to claim 1 wherein said driven member includes a coupling to facilitate replacement of the blade therefrom.

References Cited (Backward Citations)

US418167A Cited
US2564356A Cited
US3343577A Cited
US3477486A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-03-03 1978-09-02 1979-03-04 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-03-03 1982-09-02 1983-03-04 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-03-03 1986-09-02 1987-03-04 $7700.00 Window Closed / Lapsed

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