US3909888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turn-button fastener
Assignee: Samsonite Corp
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Filing: 1974-05-20
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Granted: 1975-10-07
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Expires: 1994-05-20
Abstract
Abstract A Turn-Button Fastener having part made of resilient plastic which provides positive indexing from the locked to the unlocked positions through interference of the parts.
Inventors
- 👤 Jules H Funston
- 👤 Elmer O Grumet
- 👤 Henry G Mast
- 👤 Charles J Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:51
CPC Classifications
A; A44; A44B; A44B99/00; A44B99/005; A45; A45C; A45C13/00; A45C13/10; A45C13/12; A45C13/126; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/51; Y10S24/53; Y10S24/54; Y10S24/56; Y10S24/58; Y10S292/00; Y10S292/38; Y10T; Y10T24/00; Y10T24/45; Y10T24/45152; Y10T24/45173; Y10T24/45178; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1083; Y10T292/1085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A turn-button fastener, comprising in combination: an oblong knob with an integral shaft extending normally therefrom, said shaft having a first extent immediately adjacent the knob of circular cross-section, a zone of restricted cross-section immediately adjacent said first extent having four flat surfaces arranged at 90* intervals thereabout, the intersecting corners formed of the four flat surfaces on said shaft being radiused, an enlarged collar on the outer end portion of said shaft adjacent to said zone of restricted diameter, and a tapered terminus; and a base member constructed of an elastic material having an opening passing therethrough, the wall defining said opening being resilient and including opposing parallel flat wall surfaces of a spacing substantially equal to the cross-section dimension between opposite shaft flat surfaces, said base member opening walls further having arcuate recesses adjacent said flat surfaces into which the enlarged collar of said shaft is fittingly received and secured against lateral displacement thereby.
Claim 2
Dependent Claim
156 words
A turn-button fastener, comprising in combination: an oblong knob with an integral shaft extending normally therefrom, said shaft having a first extent immediately adjacent the knob of circular cross-section, a zone of restricted cross-section immediately adjacent said first extent having four flat surfaces arranged at 90* intervals thereabout, the intersecting corners formed of the four flat surfaces on said shaft being radiused, an enlarged collar on the outer end portion of said shaft adjacent to said zone of restricted diameter, and a tapered terminus; and a base member constructed of an elastic material having an opening passing therethrough, the wall defining said opening being resilient and including opposing parallel flat wall surfaces of a spacing substantially equal to the cross-section dimension between opposite shaft flat surfaces, said base member opening walls further having arcuate recesses adjacent said flat surfaces into which the enlarged collar of said shaft is fittingly received and secured against lateral displacement thereby.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |