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US3850422A Expired / Lapsed US ⏱️ 0.0 years remaining

Quick-acting vise

Assignee: Individual
•
Filing: 1974-02-15
•
Granted: 1974-11-26
•
Expires: 1994-02-15
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Abstract

Abstract A quick-acting vise comprising a base, a stationary jaw fixed to the base, a movable jaw positioned for movement on the base, a spindle connected to the movable jaw, and a locking assembly which is secured to the base and through which the spindle is slidably movable. The locking assembly includes a block having a cavity therein and two openings through respective end walls of the block communicating with the cavity. The cavity has a generally ''''U'''' shape cross section. A bullet shaped cam member is situated within the cavity and has a bore on an eccentric longitudinal axis thereof. The spindle extends through the bore in the cam member and the bore and the spindle have corresponding mating cross sections. A spring is situated in the cavity and biases a round end of the cam member against a curved wall surface of the cavity. The cam member, the cavity, the openings and the spindle are configured, dimensioned and located so that rotation of the spindle causes rotation of the rounded end of the cam member against the curved wall surface resulting in forward movement of the cam member, and the spindle also by reason of frictional engagement between the bore and the spindle, toward the stationary jaw until the spindle is locked in place by frictional engagement between a surface on the cam member and a wall surface of the cavity and between portions of the peripheral surfaces of the spindle and interior wall surfaces of the openings.

Inventors

  • 👤 E Kwas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 22:54
CPC Classifications
B; B25; B25B; B25B1/00; B25B1/06

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 236 words
A clamping device comprising a fixed jaw, a locking assembly, support means mounting said fixed jaw and said locking assembly in spaced apart relationship, said locking assembly including a block fixed to said support means said block having a cavity therein and aligned openings in the end walls thereof which communicate with said cavity and which are coaxial on an axis generally perpendicular to said fixed jaw, cam means in said cavity positioned to engage a cam forming wall surface in said cavity, said cam means having a bore therethrough, a spindle slidably received through said bore, said bore and spindle having similar cross sections, a movable jaw positioned between said fixed jaw and said block and connected to one end of said spindle, and means in said cavity urging said cam means against the end of said cavity farthest from said fixed jaw, said cam means, said cavity, said spindle and said openings being configured, dimensioned and arranged so that when said spindle is rotated, the frictional engagement between said spindle, said bore and said openings, and between said cam means and a wall surface of said cavity cause said spindle to be moved axially towards said fixed jaw and then locked in place with said cam means bearing against a wall surface of said cavity, wall surfaces of said bore bearing against said spindle and said spindle bearing against wall surfaces of said openings.
Claim 2
Dependent Claim 236 words
A clamping device comprising a fixed jaw, a locking assembly, support means mounting said fixed jaw and said locking assembly in spaced apart relationship, said locking assembly including a block fixed to said support means said block having a cavity therein and aligned openings in the end walls thereof which communicate with said cavity and which are coaxial on an axis generally perpendicular to said fixed jaw, cam means in said cavity positioned to engage a cam forming wall surface in said cavity, said cam means having a bore therethrough, a spindle slidably received through said bore, said bore and spindle having similar cross sections, a movable jaw positioned between said fixed jaw and said block and connected to one end of said spindle, and means in said cavity urging said cam means against the end of said cavity farthest from said fixed jaw, said cam means, said cavity, said spindle and said openings being configured, dimensioned and arranged so that when said spindle is rotated, the frictional engagement between said spindle, said bore and said openings, and between said cam means and a wall surface of said cavity cause said spindle to be moved axially towards said fixed jaw and then locked in place with said cam means bearing against a wall surface of said cavity, wall surfaces of said bore bearing against said spindle and said spindle bearing against wall surfaces of said openings.
Claim 3
Dependent Claim 13 words
A device according to claim 1 wherein said support means comprises a base.
Claim 4
Dependent Claim 20 words
A device according to claim 1 including means connected to the other end of said spindle for manipulating said spindle.
Claim 5
Dependent Claim 49 words
A device according to claim 1 wherein said cavity has a curved wall surface adjacent said opening farthest from said jaws and wherein the surface area on said cam means adjacent one end of said bore is rounded and is juxtaposed to said curved wall surface of said cavity.
Claim 6
Dependent Claim 43 words
A device according to claim 1 wherein said cam means and said cavity are configured and dimensioned so that said spindle can be rotated clockwise or counterclockwise to cause said movable jaw to be moved towards said stationary jaw and locked in place.
Claim 7
Dependent Claim 51 words
A device according to claim 1 wherein said cam means has a generally bullet shape with a generally cylindrical peripheral side surface and a generally spherical end surface and said bore extends longitudinally through said cam means and has an axis eccentric to the central longitudinal axis of said cam means.
Claim 8
Dependent Claim 13 words
A device according to claim 1 wherein said urging means comprises a spring.
Claim 9
Dependent Claim 18 words
A device according to claim 1 wherein said cross section of said spindle and said bore is hexagonal.
Claim 10
Dependent Claim 15 words
A device according to claim 1 wherein said cavity has a generally U-shaped cross sectIon.
Claim 11
Dependent Claim 22 words
A device according to claim 1 wherein said openings through said block communicating with said cavity have a generally circular cross section.
Claim 12
Dependent Claim 50 words
A device according to claim 1 wherein said cavity is defined in part by spaced, parallel wall surfaces parallel to the axis of said openings and in part by a curved wall surface adjacent said opening farthest from said jaws, said curved wall surface merging with said parallel wall surfaces.
Claim 13
Dependent Claim 25 words
A device according to claim 1 wherein said cam means comprises a cam member which has a rounded surface adjacent one end of said bore.

References Cited (Backward Citations)

US227582A Cited
US2568393A Cited
US2612805A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-25 1978-05-27 1978-11-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-25 1982-05-27 1982-11-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-25 1986-05-27 1986-11-26 $7700.00 Window Closed / Lapsed

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