US3552704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping device for simultaneously securing two panels to a support
Assignee: American Air Filter Co Inc
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Filing: 1968-10-14
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Granted: 1971-01-05
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Expires: 1988-10-14
Abstract
Abstract A novel clamping device for use in simultaneously securing two panels to a support comprises a bolt and a fastening means. The bolt has a shank with a threaded portion at one end for engaging the fastening means and an enlarged head portion at the other end for engaging the support. The fastening means comprises a nut, a panel engagement member and a biasing means. The nut nut has a member disposable between the two panels. The panel engagement member is interposed between the two panels and the nut. The biasing means is disposed between the nut and the panel engagement member for urging the panel engagement member away from the nut.
Inventors
- 👤 Robert W Pond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:42
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/28; F16; F16B; F16B5/00; F16B5/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
151 words
A clamping device for use in simultaneously securing two panels to a support comprising: a bolt and a fastening means; said bolt having a shank disposable through an aperture in the support, with a threaded portion at one end for engaging the fastening means and an enlarged head portion at the other end for engaging the support; said fastening means comprising: a C-shaped section disposable between the panels having an upper arm engageable with the threaded portion of the shank and a lower arm with an aperture therethrough for cooperating with the shank; a bar section having an aperture therethrough for rotatably cooperating with the shank and disposed between the upper and lower arm of the C-shaped section for engagement with two panels; and a biasing means surrounding the shank and disposed between the upper arm of the C-shaped section and the bar to bias the bar against the two panels.
Claim 2
Dependent Claim
151 words
A clamping device for use in simultaneously securing two panels to a support comprising: a bolt and a fastening means; said bolt having a shank disposable through an aperture in the support, with a threaded portion at one end for engaging the fastening means and an enlarged head portion at the other end for engaging the support; said fastening means comprising: a C-shaped section disposable between the panels having an upper arm engageable with the threaded portion of the shank and a lower arm with an aperture therethrough for cooperating with the shank; a bar section having an aperture therethrough for rotatably cooperating with the shank and disposed between the upper and lower arm of the C-shaped section for engagement with two panels; and a biasing means surrounding the shank and disposed between the upper arm of the C-shaped section and the bar to bias the bar against the two panels.
Claim 3
Dependent Claim
40 words
The clamping device in claim 1 wherein: an annular sealing gasket is disposed around the shank and between the enlarged head portion of the shank and the support to prevent particulate matter from passing through the aperture in the support.
Claim 4
Dependent Claim
17 words
The biasing means of claims 1 comprising: a cylindrical, helical compression spring having a maximum load capacity.
References Cited (Backward Citations)
US1021871A
Cited
US1429018A
Cited
US2759439A
Cited
DE1053166B
Cited
GB906240A
Cited
FR77871E
Cited
US3360910A
Cited
US3430997A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |