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US3599997A Expired / Lapsed US ⏱️ 0.0 years remaining

Collet stop

Assignee: Individual
•
Filing: 1969-03-03
•
Granted: 1971-08-17
•
Expires: 1989-03-03
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Abstract

Abstract The collet stop comprises a cylindrical body, which is received by a conventional collet. One end of the body is formed with an internally threaded bore for receiving in threaded engagement a solid work stop. Formed in the body are a plurality of axially extending slots. Disposed within the slots are detachable, axially extending, spindle-engaging members. A plurality of Orings received in peripheral grooves on the body and in the detachable members yieldably hold the spindle-engaging members in position on the body. The spindle-engaging members extend inwardly into the body and project outwardly from the body. The surfaces of the spindle-engaging members disposed within the body are tapered in the axial direction so as to be inclined inwardly as the spindle-engaging members progress toward the work stop end of the body. The surfaces of the spindle-engaging members projecting outwardly from the body, which engage the inner cylindrical wall of a spindle, project equidistant from the outer cylindrical wall of the body. When the collet stop is disposed within the collet that is received by a spindle of a lathe or other machine, the spindle-engaging members project through axially extending slots formed in the collet and engage the inner cylindrical wall of the spindle. A locking screw with a tapered end is received by the other end of the collet stop, which tapered end engages the tapered surfaces of the spindle-engaging members to press the spindle-engaging members into locking engagement with the inner cylindrical wall of the spindle to secure the collet in locking engagement with the spindle. The spindle-engaging members are made of aluminum and the locking screw is made of steel to provide an improved self-locking engagement therebetween.

Inventors

  • 👤 Clark E Oliver

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 10:28
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/001; B23Q16/002; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/20; B23B31/208; B23B31/40; B23B31/404; B23B31/4066; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1054; Y10T279/1058; Y10T279/34; Y10T279/3487

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 117 words
A collet adapted to engage a confronting wall comprising a cylindrical body with a work stop end and a locking member end, a work stop disposed in the work stop end of said body, said body being formed with a plurality of axially elongated, axially extending slots, an axially elongated, axially extending detachable wall-engaging member disposed in each of said slots, said detachable wall-engaging members extending into said body and projecting out of said body, and a rotatable locking member disposed in said locking member end of said body in engagement with said detachable wall-engaging members for controlling the extent in which said detachable wall-engaging members project out of said body for engagement with said confronting wall.
Claim 2
Dependent Claim 117 words
A collet adapted to engage a confronting wall comprising a cylindrical body with a work stop end and a locking member end, a work stop disposed in the work stop end of said body, said body being formed with a plurality of axially elongated, axially extending slots, an axially elongated, axially extending detachable wall-engaging member disposed in each of said slots, said detachable wall-engaging members extending into said body and projecting out of said body, and a rotatable locking member disposed in said locking member end of said body in engagement with said detachable wall-engaging members for controlling the extent in which said detachable wall-engaging members project out of said body for engagement with said confronting wall.
Claim 3
Dependent Claim 35 words
A collet stop as claimed in claim 1 and comprising resilient annular means disposed radially around said body and in engagement with said detachable wall-engaging member for retaining said detachable wall-engaging members on said body.
Claim 4
Dependent Claim 18 words
A collet stop as claimed in claim 2 wherein said resilient annular means comprise a plurality of O-rings
Claim 5
Dependent Claim 54 words
A collet stop as claimed in claim 2 wherein each of said wall-engaging members includes an axially elongated, axially extending tapered surface disposed within said body for engagement be said locking member, each of said tapered surfaces being inclined inwardly within said body as it progresses toward said work stop end of said body.
Claim 6
Dependent Claim 27 words
A collet stop as claimed in claim 4 wherein said locking member includes a tapered end for engagement with said tapered surfaces of said detachable wall-engaging members.
Claim 7
Dependent Claim 112 words
A collet stop as claimed in claim 5 wherein said locking member includes a threaded cylindrical wall for threaded engagement with an internally threaded bore of said body at the locking member end thereof and wherein said detachable wall-engaging members increase the extent of projection from said body against the urgency of said resilient annular means as said locking member reduces its extent of projection from the locking member end of said body, and wherein said detachable wall-engaging members reduce the extent of projection from said body under the action of said resilient annular means as said locking member increases its extent of projection from the locking member end of said body.
Claim 8
Dependent Claim 36 words
A collet stop as claimed in claim 6 wherein said work stop end includes a threaded cylindrical wall received in threaded engagement by an internally threaded bore of said body at the work stop end thereof.
Claim 9
Dependent Claim 32 words
A collet stop as claimed in claim 1 wherein said locking member and said detachable wall-engaging members are made of material with different degrees of softness to improve the locking action therebetween.
Claim 10
Dependent Claim 32 words
A collet stop as claimed in claim 2 wherein said locking member and said detachable wall-engaging members are made of material with different degrees of softness to improve the locking action therebetween.
Claim 11
Dependent Claim 24 words
A collet stop as claimed in claim 1 wherein said locking member is made of steel and said wall-engaging members are made of aluminum.
Claim 12
Dependent Claim 48 words
A collet stop as claimed in claim 1 and comprising an axially disposed extension member for each of said wall-engaging members, said extensions members being detachably secured to said wall-engaging members respectively at the portions thereof projecting outwardly from said body for engagement with a said confronting wall.
Claim 13
Dependent Claim 47 words
A collet stop as claimed in claim 7 and comprising an axially disposed extension member for each of said wall-engaging members, said extension members being detachably secured to said wall-engaging members respectively at the portions thereof projecting outwardly from said body for engagement with said confronting wall.

References Cited (Backward Citations)

US2502719A Cited
US2965381A Cited
US3041078A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-08-16 1975-02-15 1975-08-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-08-16 1979-02-15 1979-08-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-08-16 1983-02-15 1983-08-17 $7700.00 Window Closed / Lapsed

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