US3661291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fasteners and closures
Assignee: GTI Corp
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Filing: 1970-08-24
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Granted: 1972-05-09
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Expires: 1990-08-24
Abstract
Abstract A fastener and closure is provided for areas surrounding threaded openings comprising a cover member having openings matching said threaded openings, a resilient cylindrical member adapted to slidably fit within said opening and having an interrupted thread on the exterior thereof intermediate the ends engaging the threads in said threaded opening, a circular end cap covering one end of said cylindrical member and extending beyond the periphery forming an annular radial flange, a depending ring at the outer periphery of the flange, spaced from the cylinder and engaging the surface surrounding the port and spacing the flange therefrom when the cylinder is in place in said opening whereby the cylinder is under axial tension between the thread and end cap.
Inventors
- 👤 Harry Hetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:38
CPC Classifications
F; F16; F16L; F16L57/00; F16L57/005; B; B65; B65D; B65D59/00; B65D59/02; F16L55/00; F16L55/10; F16L55/11; F16L55/1108; Y; Y10; Y10S; Y10S411/00; Y10S411/904; Y10S411/908
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
137 words
A protective cover for surfaces surrounding internally threaded openings comprising a cover plate having openings corresponding to said threaded openings, a resilient cylindrical member adapted to slidably fit through the cover plate openings and within said threaded openings, an interrupted thread on the exterior of the cylindrical member engaging the threads in said threaded opening, a circular end cap closing one end of said cylindrical member and extending beyond the periphery thereof forming an annular flange, a depending ring at the outer periphery of said flange spaced from the cylinder member and engaging the cover plate surface surrounding the threaded openings and spacing the flange therefrom when the cylinder member is in place in said threaded openings whereby the cylinder member is in axial tension and the cover plate is biased against the surface to be protected.
Claim 2
Dependent Claim
137 words
A protective cover for surfaces surrounding internally threaded openings comprising a cover plate having openings corresponding to said threaded openings, a resilient cylindrical member adapted to slidably fit through the cover plate openings and within said threaded openings, an interrupted thread on the exterior of the cylindrical member engaging the threads in said threaded opening, a circular end cap closing one end of said cylindrical member and extending beyond the periphery thereof forming an annular flange, a depending ring at the outer periphery of said flange spaced from the cylinder member and engaging the cover plate surface surrounding the threaded openings and spacing the flange therefrom when the cylinder member is in place in said threaded openings whereby the cylinder member is in axial tension and the cover plate is biased against the surface to be protected.
Claim 3
Dependent Claim
21 words
A protective cover as claimed in claim 1 wherein the center portion of said circular end cap is reduced in thickness.
Claim 4
Dependent Claim
16 words
A protective cover as claimed in claim 1 wherein the cylindrical meMber is made of polyethylene.
Claim 5
Dependent Claim
21 words
A protective cover as claimed in claim 1 wherein the cylindrical member is formed in one piece of a resilient plastic.
Claim 6
Dependent Claim
19 words
A protective cover as claimed in claim 1 wherein the interrupted thread comprises two thread segments substantially 180* apart.
Claim 7
Dependent Claim
94 words
A fastener member for attaching one member to another having a threaded opening comprising a resilient cylindrical member adapted to slidably fit within said threaded opening, an interrupted thread on the exterior of said cylindrical member engaging the threads in said threaded opening, a circular end cap closing one end of said cylindrical member and extending beyond the periphery thereof forming an annular flange, a depending ring at the outer periphery of said flange spaced from the cylindrical member and adapted for engaging the said one member for biasing it toward said other member.
Claim 8
Dependent Claim
94 words
A fastener member for attaching one member to another having a threaded opening comprising a resilient cylindrical member adapted to slidably fit within said threaded opening, an interrupted thread on the exterior of said cylindrical member engaging the threads in said threaded opening, a circular end cap closing one end of said cylindrical member and extending beyond the periphery thereof forming an annular flange, a depending ring at the outer periphery of said flange spaced from the cylindrical member and adapted for engaging the said one member for biasing it toward said other member.
References Cited (Backward Citations)
US2657948A
Cited
US3578200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |