Patent US3810703A successfully refreshed from Google Patents.
US3810703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable joints with male and female elements
Assignee: Individual
•
Filing: 1970-06-15
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Granted: 1974-05-14
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Expires: 1990-06-15
Abstract
Abstract The invention relates to a releasable male and female joint in which the male and female parts can be slid one into the other and held in connected condition by means of locking means. The locking means are arranged in the male or the female element and comprise at least one sprag or locking body which is arranged in a recess in the element so as to be able to move axially. A compression spring, also arranged in the recess serves to urge the sprag partially out of the recess. The projecting part of the sprag is arranged to engage an abutment provided on the other of the two elements. For undoing the joint releasing means are provided by means of which the sprag can be pressed back into the hole against the action of the associated compression spring and brought out of engagement with the abutment.
Inventors
- 👤 M Pasbrig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:58
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/06; F16B21/08; F16B21/088; E; E04; E04G; E04G7/00; E04G7/02; E04G7/06; E04G7/20; F16B12/00; F16B12/40; F16B21/10; F16B21/12; F16B21/125; F16B7/00; F16B7/04; F16B7/0406; F16B7/0413; F16D; F16D1/00; F16D1/06; F16L; F16L37/00; F16L37/08; F16L37/084; H; H01; H01R; H01R13/00; H01R13/02; H01R13/20; Y; Y10; Y10T; Y10T403/00; Y10T403/59; Y10T403/598; Y10T403/60; Y10T403/602; Y10T403/604
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
181 words
A releasable joint comprising: a. a female element having a through hole, said through hole having a first part of first cross-section and a second part of an enlarged second cross-section, said first and second parts being connected by an offset wall; b. a male element lying at least partially within said female element, said male element having a recess adjacent said offset wall; c. a compression spring having one end connected to the base of said recess; d. a sprag connected to the other end of said spring and Mounted for axial movement in said recess, said spring urging said sprag outwardly of said recess to abut against said offset wall; and e. releasing means for pushing said sprag into said recess against the action of said spring, said releasing means comprising a sleeve which surrounds said male element within said second part and is axially movable therein and a plate at one end of said sleeve wherein said plate may be pushed to move the other end of said sleeve against said sprag so as to compress said spring.
Claim 2
Dependent Claim
181 words
A releasable joint comprising: a. a female element having a through hole, said through hole having a first part of first cross-section and a second part of an enlarged second cross-section, said first and second parts being connected by an offset wall; b. a male element lying at least partially within said female element, said male element having a recess adjacent said offset wall; c. a compression spring having one end connected to the base of said recess; d. a sprag connected to the other end of said spring and Mounted for axial movement in said recess, said spring urging said sprag outwardly of said recess to abut against said offset wall; and e. releasing means for pushing said sprag into said recess against the action of said spring, said releasing means comprising a sleeve which surrounds said male element within said second part and is axially movable therein and a plate at one end of said sleeve wherein said plate may be pushed to move the other end of said sleeve against said sprag so as to compress said spring.
Claim 3
Dependent Claim
34 words
A joint as claimed in claim 1 in which the recess containing the sprag is oblique in relation to the longitudinal axis of the male and female elements and narrows at its outer end.
Claim 4
Dependent Claim
24 words
A joint as claimed in claim 1 in which the male element is a coupling plug and the female element is a coupling socket.
Claim 5
Dependent Claim
17 words
A joint as claimed in claim 1 in which the male element is an electrical contact pin.
Claim 6
Dependent Claim
17 words
A joint as claimed in claim 1 in which the plate is made integrally with the sleeve.
Claim 7
Dependent Claim
32 words
A joint as claimed in claim 1 in which the male and female elements and the sleeve and the plate are constructed cylindrically and are coaxial in relation to the through hole.
Claim 8
Dependent Claim
29 words
A joint a s claimed in claim 1 in which the sprag only extends sufficiently out of the recess for its end face to be engaged by the sleeve.
Claim 9
Dependent Claim
20 words
A joint as claimed in claim 1 in which the sprag is in the form of a solid cylindrical peg.
Claim 10
Dependent Claim
36 words
A joint as claimed in claim 1 in which the bore of the female element has a groove running axially and in which the male element is arranged for rotation in order to release the joint.
Claim 11
Dependent Claim
23 words
A joint as claimed in claim 1 in which the male element has at least one end a slot for receiving a screwdriver.
Claim 12
Dependent Claim
25 words
A joint as claimed in claim 1 in which the male element has at least one sleeve for fixing the male element in a wall.
Claim 13
Dependent Claim
26 words
A joint as claimed in claim 1 in which the male element is pin-shaped and is provided with a sprag adjacent to each of its ends.
Claim 14
Dependent Claim
30 words
A joint as claimed in claim 1 in which the male element is pin-shaped and is provided with grooves for engagement with a slotted washer for attachment to a wall.
Claim 15
Dependent Claim
25 words
A joint as claimed in claim 1 in which the offset wall of the female element is in the form of a helically annular face.
Claim 16
Dependent Claim
19 words
A joint as claimed in claim 1 in which the male element is solid and has a circular cross-section.
Claim 17
Dependent Claim
29 words
A joint as claimed in claim 15 in which the male element is in the form of a pin and has a portion shaped for cooperation with a wrench.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |