US3816883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastener
Assignee: Dzus Fastener Co Inc
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Filing: 1973-01-04
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Granted: 1974-06-18
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Expires: 1993-01-04
Abstract
Abstract A quick release fastener used for fastening together two parts such as panels. The fastener consists of two components, a stud and a receptacle. The receptacle is molded from a resilient plastic material and includes two C-shaped supporting webs terminating at one end in engagement with an integral base portion and at the other end in engagement with a retaining portion. The retaining portion has a socket with cam surfaces to cooperate with lugs on the stud. The resilient member is collapsible laterally to permit its partial insertion in an aperture on a support and designed so that when it is released it will return to its initial configuration affixing the receptacle to the support. The relationship between the base and the Cshaped loops is dimensionally adjusted so that the receptacle is adapted to be mounted in a variety of different thickness panels.
Inventors
- 👤 T Dzus
- 👤 P Schenk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:15
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/02; F16B21/04; F16B5/00; F16B5/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
343 words
A fastener receptacle for use with a fastener stud of the type having a shank portion and a crossarm, said receptacle comprising: a unitary member made of resilient plastic material and having a base portion for mounting on a support formed with a central aperture for receiving the shank portion of the stud; a pair of resilient C-shaped loop portions extending outwardly from opposite ends of the base portion; a retaining portion integrally secured to the outer ends of the C-shaped loop portions and normally held in spaced relationship thereby from the base portion but shiftable against the resilient force exerted by the loop portions toward the base portion; said retaining portion having a central aperture with cam surfaces formed therein to receive and engage the cross-arm on the shank of the stud and being provided with a collar-like flange portion surrounding the aperture and projecting toward the base portion whereby when the cross-arm of the stud is engaged with the cam surfaces in the aperture and a force in tension is exerted between the fastener stud and the receptacle relative movement of the retaining portion of the receptacle toward the base portion is limited by engagement of the flange portion with the base portion; mounting means on said member to facilitate connection to a support; a body portion having a reduced part adjacent to the loop portions to cooperate with the loop portions in providing a member adapted to be mounted to a variety of different thickness supports; and the mounting means including a pair of opposed centrally located slots in the C-shaped loop portions and a pair of corresponding slots in the base portion to permit the portions of the base and loops on opposed sides of the respective slots to be forced toward one another thereby reducing the width thereof and facilitating positioning of the member in the central aperture of a support whereupon release of the resilient member will permit the base and C-shaped loop portions to return to their normal configuration with the member mounted on the support.
Claim 2
Dependent Claim
343 words
A fastener receptacle for use with a fastener stud of the type having a shank portion and a crossarm, said receptacle comprising: a unitary member made of resilient plastic material and having a base portion for mounting on a support formed with a central aperture for receiving the shank portion of the stud; a pair of resilient C-shaped loop portions extending outwardly from opposite ends of the base portion; a retaining portion integrally secured to the outer ends of the C-shaped loop portions and normally held in spaced relationship thereby from the base portion but shiftable against the resilient force exerted by the loop portions toward the base portion; said retaining portion having a central aperture with cam surfaces formed therein to receive and engage the cross-arm on the shank of the stud and being provided with a collar-like flange portion surrounding the aperture and projecting toward the base portion whereby when the cross-arm of the stud is engaged with the cam surfaces in the aperture and a force in tension is exerted between the fastener stud and the receptacle relative movement of the retaining portion of the receptacle toward the base portion is limited by engagement of the flange portion with the base portion; mounting means on said member to facilitate connection to a support; a body portion having a reduced part adjacent to the loop portions to cooperate with the loop portions in providing a member adapted to be mounted to a variety of different thickness supports; and the mounting means including a pair of opposed centrally located slots in the C-shaped loop portions and a pair of corresponding slots in the base portion to permit the portions of the base and loops on opposed sides of the respective slots to be forced toward one another thereby reducing the width thereof and facilitating positioning of the member in the central aperture of a support whereupon release of the resilient member will permit the base and C-shaped loop portions to return to their normal configuration with the member mounted on the support.
Claim 3
Dependent Claim
53 words
The invention in accordance with claim 1 wherein transverse ribs are positioned across at least one pair of the pair of slots in the base and the pair of slots in the loop portion to assist in rigidifying the member and retaining the member in the normal position when mounted on the support.
Claim 4
Dependent Claim
304 words
A fastener receptacle for use with a fastener stud of the type having a shank portion and a cross-arm, said receptacle comprising; a unitary member made of resilient plastic material and having a base portion for mounting on a support formed with a central aperture for receiving the shank portion of the stud; a pair of resilient C-shaped loop portions extending outwardly from opposite ends of the base portion; a retaining portion integrally secured to the outer ends of the C-shaped loop portions and normally held in spaced relationship thereby from the base portion but shiftable against the resilient force exerted by the loop portions toward the base portion; said retaining portion having a central aperture with cam surfaces formed therein to receive and engage the cross-arm on the shank of the stud and being provided with a collar-like flange portion surrounding the aperture and projecting toward the base portion whereby when the cross-arm of the stud is engaged with the cam surfaces in the aperture and a force in tension is exerted between the fastener stud and the receptacle relative movement of the retaining portion of the receptacle toward the base portion is limited by engagement of the flange portion with the base portion; mounting means on said member to facilitate connection To a support; a body portion having a reduced part adjacent to the loop portions to cooperate with the loop portions in providing a member adapted to be mounted to a variety of different thickness supports; and the reduced portion on the body being formed by a pair of opposed undercuts on the body portion at the location where the body portion meets the C-shaped loops to thereby increase the distance between the point of engagement of the base and each C-shaped loop and the outer upper surface of each loop.
Claim 5
Dependent Claim
304 words
A fastener receptacle for use with a fastener stud of the type having a shank portion and a cross-arm, said receptacle comprising; a unitary member made of resilient plastic material and having a base portion for mounting on a support formed with a central aperture for receiving the shank portion of the stud; a pair of resilient C-shaped loop portions extending outwardly from opposite ends of the base portion; a retaining portion integrally secured to the outer ends of the C-shaped loop portions and normally held in spaced relationship thereby from the base portion but shiftable against the resilient force exerted by the loop portions toward the base portion; said retaining portion having a central aperture with cam surfaces formed therein to receive and engage the cross-arm on the shank of the stud and being provided with a collar-like flange portion surrounding the aperture and projecting toward the base portion whereby when the cross-arm of the stud is engaged with the cam surfaces in the aperture and a force in tension is exerted between the fastener stud and the receptacle relative movement of the retaining portion of the receptacle toward the base portion is limited by engagement of the flange portion with the base portion; mounting means on said member to facilitate connection To a support; a body portion having a reduced part adjacent to the loop portions to cooperate with the loop portions in providing a member adapted to be mounted to a variety of different thickness supports; and the reduced portion on the body being formed by a pair of opposed undercuts on the body portion at the location where the body portion meets the C-shaped loops to thereby increase the distance between the point of engagement of the base and each C-shaped loop and the outer upper surface of each loop.
Claim 6
Dependent Claim
47 words
The invention in accordance with claim 3 wherein a plurality of projections extend from the upper surface of the loops spaced from the body to cooperate with the undercuts on the body portion in facilitating rigid interengagement between the member and a variety of different thickness panels.
Claim 7
Dependent Claim
39 words
The invention in accordance with claim 3 wherein each of the C-shaped loops extends from the ends of the base a distance substantially less than the width of the base thereby providing a compact fastener receptacle of minimum size.
Claim 8
Dependent Claim
55 words
The invention in accordance with claim 3 wherein the collar-like flange projects toward and away from the base portion from the point of engagement between the retaining portion and the outer ends of the C-shaped loop portions to facilitate accommodation of the stud while retaining minimum dimensional requirements for extension of the C-shaped loop portions.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |