Patent US4008513A successfully refreshed from Google Patents.
US4008513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clasp
Assignee: Individual
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Filing: 1975-09-24
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Granted: 1977-02-22
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Expires: 1995-09-24
Abstract
Abstract A male and female element each having one or more prongs for mating engagement with each other. The prongs of the female element have downwardly extending slots for receiving a transverse bar contained in a prong of the male element. A pushing member is provided in the female element for urging the bar into the slots and for holding the bar therein.
Inventors
- 👤 Kenneth F. Griffiths
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:18
CPC Classifications
A; A44; A44C; A44C5/00; A44C5/18; A44C5/20; A44C5/2071; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/51; Y10S24/52; Y10T; Y10T24/00; Y10T24/45; Y10T24/45152; Y10T24/45183; Y10T24/45225; Y10T24/45602; Y10T24/45723; Y10T24/45958; Y10T24/45963
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
230 words
A clasp comprising a male element, having a main body portion, at least one prong extending axially outwardly from said main body portion, and exposed bar means extending laterally from said at least one prong, and a female element having a main body portion, at least two prongs extending axially outwardly from said main body portion to receive said male portion and extend along the lateral edges of said prongs on said male portion, each of the prongs from said female element having an L-shaped slot formed therein for receiving said bar means of said male element; each of said L-shaped slots comprising a vertical portion extending in a common plane transverse to the axis of said female element and a horizontal portion extending in a common plane axially away from the main body of said female element, and pushing means mounted within the main body portion of one of said male or female elements and normally biased outwardly therefrom for resiliently engaging the main body portion of the other element, said pushing means and said main body portion of the other element having cooperatively engaging faces adapted to cause said pushing means to yield axially inward on the downward movement of said bar into the vertical portion of said L-shaped slot, and axially outward to force said bar into locking engagement within the horizontal portion of said L-shaped slot.
Claim 2
Dependent Claim
230 words
A clasp comprising a male element, having a main body portion, at least one prong extending axially outwardly from said main body portion, and exposed bar means extending laterally from said at least one prong, and a female element having a main body portion, at least two prongs extending axially outwardly from said main body portion to receive said male portion and extend along the lateral edges of said prongs on said male portion, each of the prongs from said female element having an L-shaped slot formed therein for receiving said bar means of said male element; each of said L-shaped slots comprising a vertical portion extending in a common plane transverse to the axis of said female element and a horizontal portion extending in a common plane axially away from the main body of said female element, and pushing means mounted within the main body portion of one of said male or female elements and normally biased outwardly therefrom for resiliently engaging the main body portion of the other element, said pushing means and said main body portion of the other element having cooperatively engaging faces adapted to cause said pushing means to yield axially inward on the downward movement of said bar into the vertical portion of said L-shaped slot, and axially outward to force said bar into locking engagement within the horizontal portion of said L-shaped slot.
Claim 3
Dependent Claim
61 words
The clasp according to claim 1, wherein said pushing means comprises a ball, and a spring having a first end engaging said ball, said main body portion of said female element comprising an axial bore extending through a portion thereof mounting said spring and said ball therein, said spring having a second end engaging the inner most end of said opening.
Claim 4
Dependent Claim
64 words
The clasp according to claim 1, wherein said pushing means comprises a ball, a spring having a first end engaging to said ball, said main body portion and said at least one prong of said male element having an opening extending therethrough mounting said spring and said ball therein, said spring having a second end engaging to the inner most end of said opening.
Claim 5
Dependent Claim
106 words
The clasp according to claim 1, wherein each of said male and female elements comprises a plurality of prongs spaced from each other said bar means comprising a bar extending between the outermost prongs of said male element, said bar being exposed in the spaces between adjacent prongs, and said pushing means comprising an elastic buffer extending between the outermost prongs of said female element, said buffer being exposed in the spaces between adjacent prongs, so that when the prongs in the male element are inserted in the spaces between the prongs of the female element, the buffer will urge said male element into said slot.
Claim 6
Dependent Claim
70 words
The clasp according to claim 2, wherein each of said male and female elements comprises a plurality of prongs forming a space between adjacent ones of said prongs, said pushing means being situated in said main body portion of said female element near the space formed by the middle one of said prongs, said ball extending partially into said space when said male element is removed from said female element.
Claim 7
Dependent Claim
40 words
The clasp according to claim 2, wherein said slot comprises a vertical portion and a horizontal portion below said vertical portion, said spring and ball having a central axis mounted above the top of said horizontal portion of said slot.
Claim 8
Dependent Claim
41 words
The clasp according to claim 2, wherein said slot comprises a vertical portion and a horizontal portion below said vertical portion, said spring and said ball having a central axis mounted in alignment with a central axis of said horizontal portion.
Claim 9
Dependent Claim
41 words
The clasp according to claim 2, wherein said slot comprises a vertical portion and a horizontal portion below said vertical portion, said spring and said ball having a central axis mounted below the bottom of said horizontal portion of said slot.
Claim 10
Dependent Claim
35 words
The clasp according to claim 1, wherein said slot comprises a portion transverse to the central plane of said clasp and a portion extending at an angle to said transverse portion and said central plane.
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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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |