US3718950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device for detachably securing two members together
Assignee: Individual
•
Filing: 1972-01-12
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Granted: 1973-03-06
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Expires: 1992-01-12
Abstract
Abstract A fastening device for detachably securing together a member, such as a plate member, having a stud rotatably and axially movably mounted therein, and another member which may also be a plate member, and which is provided with one or more detent members adapted to cooperate with one end of the stud. At the other end the stud may for example be provided with a head, which may be similar to a screw head, and a spring member is biasing the stud axially in relation to the plate member in which it is mounted and tends to move the head of the stud away from the associated plate member. The end of the stud adapted to cooperate with the detent members is provided with axially spaced shoulders preferably forming parts of notches into which the said detent members may snap so as to lock the stud, when the stud is moved axially against the force exerted by the spring member. The said shoulders are shaped in such a manner that the stud may be locked merely by depressing the head thereof despite of its angular position, and released by rotating the stud in any direction.
Inventors
- 👤 J Engstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:46
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/06; F16B5/0607; F16B5/0621; F16B5/0642; F16B21/00; F16B21/06; F16B21/07; F16B21/073; F16B21/078; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45513; Y10T24/45518; Y10T24/45602; Y10T24/45775; Y10T24/4578
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
139 words
A fastening device for detachably securing first and second members together, said device comprising socket means mounted in said first member, a stud arranged rotatably and axially movable in said socket means, a first end portion of the stud comprising first and second axially spaced shoulders extending combined over the entire circumference of said first end portion, each of the axially spaced shoulders extending over only part of said circumference, spring means biasing said stud axially in the direction of the second end portion thereof, and in relation to said first member, and detent means arranged on said second member and being resiliently biased so as to be able to snap into locking engagement with said shoulders when the stud is moved axially in the direction of said first end portion against the force exerted by said spring means.
Claim 2
Dependent Claim
139 words
A fastening device for detachably securing first and second members together, said device comprising socket means mounted in said first member, a stud arranged rotatably and axially movable in said socket means, a first end portion of the stud comprising first and second axially spaced shoulders extending combined over the entire circumference of said first end portion, each of the axially spaced shoulders extending over only part of said circumference, spring means biasing said stud axially in the direction of the second end portion thereof, and in relation to said first member, and detent means arranged on said second member and being resiliently biased so as to be able to snap into locking engagement with said shoulders when the stud is moved axially in the direction of said first end portion against the force exerted by said spring means.
Claim 3
Dependent Claim
139 words
A fastening device for detachably securing first and second members together, said device comprising socket means mounted in said first member, a stud arranged rotatably and axially movable in said socket means, a first end portion of the stud comprising first and second axially spaced shoulders extending combined over the entire circumference of said first end portion, each of the axially spaced shoulders extending over only part of said circumference, spring means biasing said stud axially in the direction of the second end portion thereof, and in relation to said first member, and detent means arranged on said second member and being resiliently biased so as to be able to snap into locking engagement with said shoulders when the stud is moved axially in the direction of said first end portion against the force exerted by said spring means.
Claim 4
Dependent Claim
139 words
A fastening device for detachably securing first and second members together, said device comprising socket means mounted in said first member, a stud arranged rotatably and axially movable in said socket means, a first end portion of the stud comprising first and second axially spaced shoulders extending combined over the entire circumference of said first end portion, each of the axially spaced shoulders extending over only part of said circumference, spring means biasing said stud axially in the direction of the second end portion thereof, and in relation to said first member, and detent means arranged on said second member and being resiliently biased so as to be able to snap into locking engagement with said shoulders when the stud is moved axially in the direction of said first end portion against the force exerted by said spring means.
Claim 5
Dependent Claim
44 words
A fastening device according to claim 1, wherein said first end portion comprises axially spaced pairs of diametrically oppositely arranged shoulders, said detent means comprising two detent members resiliently biased towards each other and adapted to engage with either of said Pairs of shoulders.
Claim 6
Dependent Claim
53 words
A fastening device according to claim 2, wherein said second member defines an opening therein, said stud extending through said opening in its locked position, and said detent means being arranged on said second member at the surface thereof being opposite to that adjacent to said first member in the said locked position.
Claim 7
Dependent Claim
20 words
A fastening device according to claim 3, wherein said detent members are formed by end portions of flat spring members.
Claim 8
Dependent Claim
185 words
A fastening device for detachably securing a first plate member to a second plate member in superposed relationship, said device comprising a socket mounted in said first plate member, a stud arranged rotatably and axially movable in said socket, a first end portion of the stud comprising two spaced pairs of diametrically oppositely positioned shoulders, said two pairs of shoulders extending combined over the entire circumference of said first end portion and each pair of shoulders extending over only part of said circumference, spring means biasing said stud axially in the direction of a second end portion of the stud and in relation to said first plate member, a pair of oppositely arranged detent members resiliently biased towards each other so as to be able to snap into locking engagement with either of said pairs of shoulders when the stud is moved axially in the direction of said first end portion against the force exerted by said spring means, whereby the stud may be locked in any rotational position thereof when said axial movement is provided, and released by rotating the stud in any direction.
Claim 9
Dependent Claim
185 words
A fastening device for detachably securing a first plate member to a second plate member in superposed relationship, said device comprising a socket mounted in said first plate member, a stud arranged rotatably and axially movable in said socket, a first end portion of the stud comprising two spaced pairs of diametrically oppositely positioned shoulders, said two pairs of shoulders extending combined over the entire circumference of said first end portion and each pair of shoulders extending over only part of said circumference, spring means biasing said stud axially in the direction of a second end portion of the stud and in relation to said first plate member, a pair of oppositely arranged detent members resiliently biased towards each other so as to be able to snap into locking engagement with either of said pairs of shoulders when the stud is moved axially in the direction of said first end portion against the force exerted by said spring means, whereby the stud may be locked in any rotational position thereof when said axial movement is provided, and released by rotating the stud in any direction.
Claim 10
Dependent Claim
84 words
A fastening device according to claim 5, wherein the wall of said second plate member defines an opening therein, said stud extending through said opening in its locked position, and the detent members being arranged at the surface of said second member opposite to that engaging said first plate member in said locked position. 7 A fastening device according to claim 6, wherein said detent members are formed by end portions of flat spring members extending over the opening in said second plate member.
Claim 11
Dependent Claim
25 words
A fastening device according to claim 5, wherein said second end portion of the stud comprises a head similar to the head of a screw.
References Cited (Backward Citations)
US2252286A
Cited
US2552066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-05 | 1976-09-04 | 1977-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-05 | 1980-09-04 | 1981-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-05 | 1984-09-04 | 1985-03-06 | $7700.00 | Window Closed / Lapsed |