US3669440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick engaging and disengaging nut mechanism
Assignee: Wilton Corp
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Filing: 1970-06-18
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Granted: 1972-06-13
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Expires: 1990-06-18
Abstract
Abstract A screw-threaded device as for use in a vise or other clamping mechanism which includes a threaded shaft received in a partially threaded nut. The threaded shaft is axially movable under an axial actuating force at a rapid rate, and is incrementally advanced axially by a rotative force thereon, the screw threads of the shaft being automatically moved into or out of engagement with the partial threads of the nut upon rotation of the shaft in advancing or retracting direction. One spring coacts between the nut and a guide yoke on the shaft to guide the nut in and out of engagement with the shaft, while a second spring on the yoke bears against the shaft and tends to turn the yoke with the shaft. A second form of the invention uses the same, or essentially the same, partially threaded nut and guide yoke, but uses a positive pivot pin for guiding the partially threaded nut in and out of engagement with the threaded shaft.
Inventors
- 👤 Ray Kartasuk
- 👤 Ray Gloridso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:38
CPC Classifications
B; B25; B25B; B25B1/00; B25B1/06; B25B1/10; B25B1/12; B25B1/125; F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/2025; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18648; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19735; Y10T74/1974
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
169 words
A quick acting screw-threaded device comprising base means, a screw-threaded shaft supported by said base means for rotation and axial movement, a nut member, said nut member having a surface with partial threads therein selectively engageable with and separable from said threaded shaft, a nut rotating member operatively connected with said nut member and frictionally tending to turn with said shaft, a nut positioning guide member engaging said base means and said nut member having an aperture that receives said guide member, rotation of said shaft in one direction frictionally turning said nut rotating member in one direction, said nut positioning guide member applying force to said nut member to snap said nut member into threaded engagement with said shaft, and rotation of said shaft in the opposite direction turning said nut member in the opposite direction, said nut rotating member and said nut positioning guide member cooperating to snap said nut member out of threaded engagement with said shaft, said shaft thereupon being free for rapid axial advance.
Claim 2
Dependent Claim
169 words
A quick acting screw-threaded device comprising base means, a screw-threaded shaft supported by said base means for rotation and axial movement, a nut member, said nut member having a surface with partial threads therein selectively engageable with and separable from said threaded shaft, a nut rotating member operatively connected with said nut member and frictionally tending to turn with said shaft, a nut positioning guide member engaging said base means and said nut member having an aperture that receives said guide member, rotation of said shaft in one direction frictionally turning said nut rotating member in one direction, said nut positioning guide member applying force to said nut member to snap said nut member into threaded engagement with said shaft, and rotation of said shaft in the opposite direction turning said nut member in the opposite direction, said nut rotating member and said nut positioning guide member cooperating to snap said nut member out of threaded engagement with said shaft, said shaft thereupon being free for rapid axial advance.
Claim 3
Dependent Claim
15 words
A device as set forth in claim 1, wherein the guide member comprises a spring.
Claim 4
Dependent Claim
15 words
A device as set forth in claim 2, wherein the spring comprises a leaf spring.
Claim 5
Dependent Claim
14 words
A device as set forth in claim 1, wherein said aperture comprises a slot.
Claim 6
Dependent Claim
22 words
A device as set forth in claim 2, wherein said spring comprises a leaf spring and wherein the aperture comprises a slot.
Claim 7
Dependent Claim
22 words
A device as set forth in claim 1 and further including means pivotally interconnecting said nut member and said nut rotating member.
Claim 8
Dependent Claim
24 words
A device as set forth in claim 1, wherein said nut rotating member comprises a yoke having a plurality of rings encircling said shaft.
Claim 9
Dependent Claim
31 words
A device as set forth in claim 7, wherein said yoke includes a body interconnecting said rings, and a spring member carried by said body and frictionally bearing Against said shaft.
Claim 10
Dependent Claim
22 words
A device as set forth in claim 7 and further including means pivotally mounting said nut member on said nut rotating member.
Claim 11
Dependent Claim
60 words
A device as set forth in claim 1, wherein said guide member comprises a leaf spring, the aperture comprises a slot in said nut member, and wherein said nut rotating member comprises a yoke including a plurality of rings encircling said shaft at an inner connecting body portion, and means pivotally connecting said nut member to said nut rotating member.
Claim 12
Dependent Claim
15 words
A device as set forth in claim 1, wherein said base comprises a clamp member.
Claim 13
Dependent Claim
23 words
A device as set forth in claim 11 and further including an opposing clamp member connected to said shaft for axial movement therewith.
Claim 14
Dependent Claim
30 words
A device as set forth in claim 12 comprising a vise, and including means on said base clamp member for mounting said device on a supporting table or the like.
Claim 15
Dependent Claim
177 words
A quick acting screw-threaded device comprising base means, a screw-threaded shaft supported by said base means for rotation and axial movement, a nut member, said nut member having a surface with partial threads therein selectively engageable with and separable from said threaded shaft, a nut rotating member pivotally connected with said nut member and frictionally tending to turn with said shaft, a nut positioning guide member engaging said nut member, said guide member being an extension of said nut member and being pivotally connected to said base means, rotation of said shaft in one direction frictionally turning said nut rotating member in one direction, said nut rotating member and said nut positioning guide member cooperating to move said nut positioning member into threaded engagement with said shaft, and rotation of said shaft in the opposite direction turning said nut member in the opposite direction, said nut rotating member and said nut positioning guide member thereupon cooperating to move said nut member out of threaded engagement with said shaft, said shaft thereupon being free for rapid axial advance.
Claim 16
Dependent Claim
177 words
A quick acting screw-threaded device comprising base means, a screw-threaded shaft supported by said base means for rotation and axial movement, a nut member, said nut member having a surface with partial threads therein selectively engageable with and separable from said threaded shaft, a nut rotating member pivotally connected with said nut member and frictionally tending to turn with said shaft, a nut positioning guide member engaging said nut member, said guide member being an extension of said nut member and being pivotally connected to said base means, rotation of said shaft in one direction frictionally turning said nut rotating member in one direction, said nut rotating member and said nut positioning guide member cooperating to move said nut positioning member into threaded engagement with said shaft, and rotation of said shaft in the opposite direction turning said nut member in the opposite direction, said nut rotating member and said nut positioning guide member thereupon cooperating to move said nut member out of threaded engagement with said shaft, said shaft thereupon being free for rapid axial advance.
Claim 17
Dependent Claim
22 words
A device as set forth in claim 14 wherein the nut positioning guide member comprises an integral flange on said nut member.
Claim 18
Dependent Claim
28 words
A device as set forth in claim 14 wherein the nut rotating member comprises a member encircling said shaft and having means thereon engageable frictionally with said shaft.
Claim 19
Dependent Claim
36 words
A device as set forth in claim 16 wherein the nut rotating member comprises a yoke having a body portion encircling said shaft and arm means extending radially therefrom and pivotally connected with said nut member.
Claim 20
Dependent Claim
34 words
A device according to claim 17 comprising a vise and wherein the base means comprises a clamp member, said device further including an opposed clamp member connected to said shaft for axial movement therewith.
Claim 21
Dependent Claim
137 words
A quick acting vise comprising base means, a screw-threaded shaft supported by said base means for rotation and axial movement, a vise jaw carried by said shaft, a nut member having a surface with threads therein selectively engageable with and separable from said threaded shaft, a nut rotating member including a yoke having spaced rings encircling said shaft, said yoke having spaced slots intermediate said rings, a U-shaped rotator spring interposed between said shaft and said yoke and having ends projecting through said slots, said spring having a bight against said shaft and providing driving engagement between said shaft and said nut rotating member, and means cooperating with said nut rotating member for engaging or disengaging the thread on said shaft with the threads on said nut in accordance with the direction of rotation of said shaft.
Claim 22
Dependent Claim
137 words
A quick acting vise comprising base means, a screw-threaded shaft supported by said base means for rotation and axial movement, a vise jaw carried by said shaft, a nut member having a surface with threads therein selectively engageable with and separable from said threaded shaft, a nut rotating member including a yoke having spaced rings encircling said shaft, said yoke having spaced slots intermediate said rings, a U-shaped rotator spring interposed between said shaft and said yoke and having ends projecting through said slots, said spring having a bight against said shaft and providing driving engagement between said shaft and said nut rotating member, and means cooperating with said nut rotating member for engaging or disengaging the thread on said shaft with the threads on said nut in accordance with the direction of rotation of said shaft.
References Cited (Backward Citations)
US1055278A
Cited
US3492886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |