Patent US3573876A successfully refreshed from Google Patents.
US3573876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for releasably coupling a member to a rotatable body
Assignee: Individual
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Filing: 1968-12-27
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Granted: 1971-04-06
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Expires: 1988-12-27
Abstract
Abstract An arrangement for releasably coupling a member to a rotatable body includes two substantially identical locking pieces positioned within a transverse or diametrical bore of the rotatable body and connected together by O-rings such that they can move transversely of the body in opposite directions; with respect to each other. On rotation of the body, the locking pieces move apart under centrifugal force, their ends extending beyond the surface of the body to engage a member mounted on the body. Alternatively, the body is provided with an axial bore and the locking pieces have holes alignable with the bore to accommodate the shank of a tool. Rotation of the body causes the locking pieces to move apart, the edges of their holes gripping the shank of the tool.
Inventors
- 👤 John William Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:57
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/10; F16B21/12; A; A61; A61C; A61C1/00; A61C1/08; A61C1/14; A61C1/142; A61C1/18; B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/14; B23B31/142; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1074; Y10T279/1079; Y10T279/24; Y10T279/247; Y10T403/00; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7083; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T409/309408
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
An arrangement adapted to centrifugally and releasably couple to a rotatable body a member slidably mounted thereon, said arrangement comprising: a rotatable body having at least one transverse bore extending diametrically therethrough; a pair of substantially identical locking pieces arranged within the transverse bore for free sliding motion in opposite directions relatively to one another; and means for yieldingly connecting the locking pieces together in outwardly urged relationship whereby on rotation of the body the connecting means allow limited relative longitudinal movement between the locking pieces as the outer ends of the locking pieces move outward beyond the transverse bore in response to centrifugal force acting thereon resulting from rotation of the body to engage the member mounted on the body.
Claim 2
Dependent Claim
121 words
An arrangement adapted to centrifugally and releasably couple to a rotatable body a member slidably mounted thereon, said arrangement comprising: a rotatable body having at least one transverse bore extending diametrically therethrough; a pair of substantially identical locking pieces arranged within the transverse bore for free sliding motion in opposite directions relatively to one another; and means for yieldingly connecting the locking pieces together in outwardly urged relationship whereby on rotation of the body the connecting means allow limited relative longitudinal movement between the locking pieces as the outer ends of the locking pieces move outward beyond the transverse bore in response to centrifugal force acting thereon resulting from rotation of the body to engage the member mounted on the body.
Claim 3
Dependent Claim
16 words
An arrangement as claimed in claim 1, wherein the connecting means are a pair of O-rings.
Claim 4
Dependent Claim
69 words
An arrangement as claimed in claim 1, wherein each locking piece includes a head portion for engaging the member mounted on the body, a groove for accommodating the connecting means, a semicylindrical tail portion, and a part of reduced diameter on the tail portion alignable with the groove on the other locking piece of the pair, said connecting means encircling each groove and the reduced diameter part aligned therewith.
Claim 5
Dependent Claim
154 words
An arrangement adapted to cEntrifugally and releasably couple to a rotatable body a member slidably mounted therein, said arrangement comprising: a rotatable body having at least one transverse bore extending diametrically therethrough and also having an axial bore extending from one end face of the body to the transverse bore; a pair of substantially identical locking pieces arranged within the transverse bore for free sliding motion in opposite directions relatively to one another; each locking piece having a hole alignable with the axial bore, means for yieldingly connecting the locking pieces together in outwardly urged relationship whereby on rotation of the body the connecting means allow limited relative longitudinal movement between the locking pieces as the locking pieces move outward within the transverse bore in response to centrifugal force acting thereon, and the sides of their holes consequently grip the member mounted in the axial bore and in the holes in the locking pieces.
Claim 6
Dependent Claim
154 words
An arrangement adapted to cEntrifugally and releasably couple to a rotatable body a member slidably mounted therein, said arrangement comprising: a rotatable body having at least one transverse bore extending diametrically therethrough and also having an axial bore extending from one end face of the body to the transverse bore; a pair of substantially identical locking pieces arranged within the transverse bore for free sliding motion in opposite directions relatively to one another; each locking piece having a hole alignable with the axial bore, means for yieldingly connecting the locking pieces together in outwardly urged relationship whereby on rotation of the body the connecting means allow limited relative longitudinal movement between the locking pieces as the locking pieces move outward within the transverse bore in response to centrifugal force acting thereon, and the sides of their holes consequently grip the member mounted in the axial bore and in the holes in the locking pieces.
Claim 7
Dependent Claim
16 words
An arrangement as claimed in claim 5, wherein the connecting means are a pair of O-rings.
Claim 8
Dependent Claim
58 words
An arrangement as claimed in claim 5, wherein each locking piece includes a groove for accommodating the connecting means, a semicylindrical tail portion, and a part of reduced diameter on the tail portion alignable with the groove on the other locking piece of the pair, said connecting means encircling each groove and the reduced diameter part aligned therewith.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |