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US4273173A Expired / Lapsed US ⏱️ 0.0 years remaining

Device for transmitting torque

Assignee: Alterra Holdings Corp
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Filing: 1979-10-17
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Granted: 1981-06-16
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Expires: 1999-10-17
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Abstract

Abstract A screwdriver or the like has a shank adapted to hold any one of a number of double ended bits together with a handle for the shank having storage slots for those bits not being held in place by the shank. A split ring, rotatable on the stem of the handle, holds the stored bits against displacement until the ring is rotated to place the space between the ends of the ring into alignment with a selected slot.

Inventors

  • 👤 Lloyd T. Smith
  • 👤 Alan E. Bartholomew
  • 👤 Robert W. Fee
  • 👤 Michael L. Meister
  • 👤 Richard J. Robbins
  • 👤 Richard E. Ten Eyck

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 05:31
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/08; B25G1/085

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 204 words
In a torque transmitting device, an elongated stem provided with an enlarged, integral handle; a shank secured to the stem in axial alignment therewith, said shank extending from the stem oppositely from said handle, said stem being provided with an elongated, outwardly-opening, tool-storing slot extending longitudinally of the stem between the handle and the shank, said slot terminating in a pair of opposed, spaced-apart, radial end walls, one being spaced from the shank and facing toward the handle, the other being adjacent the handle and facing toward the shank, presenting stops for precluding displacement of the tool longitudinally of the slot, said stem having an outwardly-opening, circumferential groove between the handle and the shank of lesser depth than the slot, said groove intersecting the slot and otherwise surrounding the stem, the slot being otherwise uninterrupted between said ends thereof; and a C-shaped, tool-retaining, band-like ring confined in said groove and rotatable about the axis of the stem, said ring being substantially equal in width to the width of the groove, and having a pair of opposed ends, presenting a space therebetween alignable with the slot upon rotation of the ring, and through which the tool may be inserted into and removed from the slot.
Claim 2
Dependent Claim 204 words
In a torque transmitting device, an elongated stem provided with an enlarged, integral handle; a shank secured to the stem in axial alignment therewith, said shank extending from the stem oppositely from said handle, said stem being provided with an elongated, outwardly-opening, tool-storing slot extending longitudinally of the stem between the handle and the shank, said slot terminating in a pair of opposed, spaced-apart, radial end walls, one being spaced from the shank and facing toward the handle, the other being adjacent the handle and facing toward the shank, presenting stops for precluding displacement of the tool longitudinally of the slot, said stem having an outwardly-opening, circumferential groove between the handle and the shank of lesser depth than the slot, said groove intersecting the slot and otherwise surrounding the stem, the slot being otherwise uninterrupted between said ends thereof; and a C-shaped, tool-retaining, band-like ring confined in said groove and rotatable about the axis of the stem, said ring being substantially equal in width to the width of the groove, and having a pair of opposed ends, presenting a space therebetween alignable with the slot upon rotation of the ring, and through which the tool may be inserted into and removed from the slot.

References Cited (Backward Citations)

US273621A Cited
US537246A Cited
US666510A Cited
US707901A Cited
FR596539A Cited
US2378775A Cited
US3683984A Cited
US3667518A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-06-15 1984-12-15 1985-06-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-06-15 1988-12-15 1989-06-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-06-15 1992-12-15 1993-06-16 $7700.00 Window Closed / Lapsed

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