US3887291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp joint for separated members
Assignee: Kirschner Medical Corp
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Filing: 1974-06-10
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Granted: 1975-06-03
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Expires: 1994-06-10
Abstract
Abstract A frame joint for releasably and rigidly joining two spaced apart bars includes a housing provided at one end with a first passage for receiving one of the bars therethrough. A second passage at the other end of the housing includes a hinged cover and threaded latch for removably securing the other bar. Between the two passages an internal cavity is disposed, with ports at each end communicating with both passages. A pin is movably disposed within the cavity barely impinging on both bars through the cavity ports. Securing and tightening the hinged cover on the other bar increases the impingement on the pin, driving it into the first bar and retaining it in the first passage, thereby rigidly immobilizing the two bars with respect to each other.
Inventors
- 👤 Robert J Langren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:03
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0493; F16B2/00; F16B2/02; F16B2/06; F16B2/065; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7105; Y10T403/7129; Y10T403/7141
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
168 words
A frame joint for joining two structural members, comprising: a housing having first and second passages extending therethrough, each slidably receiving one of the structural members; a first pin disposed within said housing between said first and second passages and impinging at either end on the structural members, said first pin including a hole extending diametrically therethrough, and a second pin extending through said hole and anchored at both ends thereof in said housing; securance means joined to said first passage for releasably retaining the structural member therein and for increasing the impingement of said first pin on both structural members; said securance means including a cover hingeably secured to said housing and forming a portion of said first passage, and tightening means for securing said cover to said housing and driving the structural member within said first passage to impinge on said first pin, said first pin being disposed in pressure transmitting relationship between the structural members to effect pressure clamping of the members in respective passages.
Claim 2
Dependent Claim
168 words
A frame joint for joining two structural members, comprising: a housing having first and second passages extending therethrough, each slidably receiving one of the structural members; a first pin disposed within said housing between said first and second passages and impinging at either end on the structural members, said first pin including a hole extending diametrically therethrough, and a second pin extending through said hole and anchored at both ends thereof in said housing; securance means joined to said first passage for releasably retaining the structural member therein and for increasing the impingement of said first pin on both structural members; said securance means including a cover hingeably secured to said housing and forming a portion of said first passage, and tightening means for securing said cover to said housing and driving the structural member within said first passage to impinge on said first pin, said first pin being disposed in pressure transmitting relationship between the structural members to effect pressure clamping of the members in respective passages.
Claim 3
Dependent Claim
168 words
A frame joint for joining two structural members, comprising: a housing having first and second passages extending therethrough, each slidably receiving one of the structural members; a first pin disposed within said housing between said first and second passages and impinging at either end on the structural members, said first pin including a hole extending diametrically therethrough, and a second pin extending through said hole and anchored at both ends thereof in said housing; securance means joined to said first passage for releasably retaining the structural member therein and for increasing the impingement of said first pin on both structural members; said securance means including a cover hingeably secured to said housing and forming a portion of said first passage, and tightening means for securing said cover to said housing and driving the structural member within said first passage to impinge on said first pin, said first pin being disposed in pressure transmitting relationship between the structural members to effect pressure clamping of the members in respective passages.
Claim 4
Dependent Claim
168 words
A frame joint for joining two structural members, comprising: a housing having first and second passages extending therethrough, each slidably receiving one of the structural members; a first pin disposed within said housing between said first and second passages and impinging at either end on the structural members, said first pin including a hole extending diametrically therethrough, and a second pin extending through said hole and anchored at both ends thereof in said housing; securance means joined to said first passage for releasably retaining the structural member therein and for increasing the impingement of said first pin on both structural members; said securance means including a cover hingeably secured to said housing and forming a portion of said first passage, and tightening means for securing said cover to said housing and driving the structural member within said first passage to impinge on said first pin, said first pin being disposed in pressure transmitting relationship between the structural members to effect pressure clamping of the members in respective passages.
Claim 5
Dependent Claim
33 words
The frame joint of claim 1, wherein said first pin includes a diametrical channel in at least one end thereof for engaging longitudinally extending facets of at least one of the structural members.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |