Patent US3610643A successfully refreshed from Google Patents.
US3610643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck adapter
Assignee: Great Northern Paper Inc
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Filing: 1969-07-03
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Granted: 1971-10-05
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Expires: 1989-07-03
Abstract
Abstract A chuck adapter for locking a chuck internally into a hollow tube. The chuck adapter comprises generally a cylindrical shell having a plurality of longitudinal openings which are aligned with a plurality of gripping bars carrying protruding blades which project through said openings and an axially movable cone member engaging cam surfaces on the gripping blades. The gripping bars are adapted to pivot about a fulcrum positioned in the interior of said shell to grip the tube as the cone member is moved axially with respect to the shell upon engagement with the end of a chuck.
Inventors
- 👤 Albion J Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:27
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/248; B65H75/2484; B23; B23B; B23B31/00; B23B31/40; B23B31/404; B23B31/4046; B65H16/00; B65H16/02; B65H16/06; B65H2511/00; B65H2511/10; B65H2511/14; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1037; Y10T279/1041; Y10T279/1045; Y10T279/34; Y10T279/3406; Y10T279/3418; Y10T82/00; Y10T82/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
210 words
A chuck adapter for locking a hollow tube onto a chuck comprising: a. a cylindrical shell having a flanged mouth at one axial end thereof for receiving and surrounding a chuck and at least one longitudinally extending opening disposed in the outer surface thereof; b. a bar having a cam surface thereon located in aligned relationship with each said opening with a portion of said bar adapted to move radially outwardly through said opening to grip the inner surface of a hollow tube; c. meaNs for mounting each said bar to move in a radial direction with respect to said shell; and d. an axially movable member having an inclined surface thereon within said shell adapted to engage the cam surface of each said bar along its inclined surface and having a chuck-engaging face on an axial end thereof adjacent the flanged mouth of said shell adapted to engage a chuck along an axial end thereof; whereby movement of a chuck into engagement with said chuckengaging face will cause the axially movable member to move axially with respect to said shell until the inclined surface thereof engages a cam surface to cause a bar to move radially outwardly of said shell to lock with the interior of a hollow tube.
Claim 2
Dependent Claim
210 words
A chuck adapter for locking a hollow tube onto a chuck comprising: a. a cylindrical shell having a flanged mouth at one axial end thereof for receiving and surrounding a chuck and at least one longitudinally extending opening disposed in the outer surface thereof; b. a bar having a cam surface thereon located in aligned relationship with each said opening with a portion of said bar adapted to move radially outwardly through said opening to grip the inner surface of a hollow tube; c. meaNs for mounting each said bar to move in a radial direction with respect to said shell; and d. an axially movable member having an inclined surface thereon within said shell adapted to engage the cam surface of each said bar along its inclined surface and having a chuck-engaging face on an axial end thereof adjacent the flanged mouth of said shell adapted to engage a chuck along an axial end thereof; whereby movement of a chuck into engagement with said chuckengaging face will cause the axially movable member to move axially with respect to said shell until the inclined surface thereof engages a cam surface to cause a bar to move radially outwardly of said shell to lock with the interior of a hollow tube.
Claim 3
Dependent Claim
58 words
A chuck adapter according to claim 1 further comprising a support member fixed at one end of said shell and having a radially extending slot therein for each bar with the inner edge of the slot serving as a pivot means about which said bar may pivot to move in a radial direction with respect to said shell.
Claim 4
Dependent Claim
60 words
A chuck adapter according to claim 2 wherein said axially movable member is cone-shaped and further comprising an axially extending shaft coaxial with said shell and fixed to said support member and a coaxial bore in the axially movable cone-shaped member through which said shaft extends whereby said shaft serves as a longitudinal guide for said axially movable cone-shaped member.
Claim 5
Dependent Claim
51 words
A chuck adapter according to claim 3 further comprising a radially extending spider fixed internally to said shell, said spider having a radially extending slot for slidably receiving a bar with said slot extending inwardly from the outer periphery of said spider a distance less than the radius of said spider.
Claim 6
Dependent Claim
63 words
A chuck adapter according to claim 1 having in addition a closure member fixed to the end of said shell opposite the flanged mouth with a coaxial bore therein and a coaxially extending shaft fixed to said axially movable member and slidably extending through the bore of said closure member whereby said shaft serves as a guide member for said axially movable member.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |