Patent US3694013A successfully refreshed from Google Patents.
US3694013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw connections for structures such as roof skylights
Assignee: Klaus Esser KG
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Filing: 1971-01-22
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Granted: 1972-09-26
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Expires: 1991-01-22
Abstract
Abstract A screw connection for a roof skylight comprises a screw which passes through a shell forming a light dome and through a shell mounting frame. Carried in the frame is a nut with a head on the side of the frame remote from the dome, the head preventing the nut from rotating in the frame as the screw is turned by cooperating with a portion of the frame. A locking plate is fitted onto the nut on the side of the frame remote from the nut head, to hold the nut in position in the frame while the nut and screw are not interengaged.
Inventors
- 👤 Alfred Heitner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:29
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/03; E04D13/0305; F; F16; F16B; F16B37/00; F16B37/04; F16B37/041; F16B37/043; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/971; Y10S411/999
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
In a roof skylight including a shell and frame means to support the shell, means for securing the shell to the frame means, the securing means comprising a nut member carried by the frame means, a screw which passes through an aperture in the shell and engages into the nut member, and a nut member locking plate, the nut member comprising on the side of the frame means which is remote from the screw a head portion having at least one projection which can bear against a stop on the frame means for preventing rotation of the nut member, and a sleeve portion which extends with radial play on all sides through an aperture in the frame means and projects out of the frame means towards the screw and is tapered at its end towards the screw, said aperture having a diameter larger than the diameter of the projecting portion of said sleeve, and the nut member locking plate having a slotted frustoconical portion which non-releasably engages around the sleeve portion to prevent axial displacement of the nut member in the frame means.
Claim 2
Dependent Claim
183 words
In a roof skylight including a shell and frame means to support the shell, means for securing the shell to the frame means, the securing means comprising a nut member carried by the frame means, a screw which passes through an aperture in the shell and engages into the nut member, and a nut member locking plate, the nut member comprising on the side of the frame means which is remote from the screw a head portion having at least one projection which can bear against a stop on the frame means for preventing rotation of the nut member, and a sleeve portion which extends with radial play on all sides through an aperture in the frame means and projects out of the frame means towards the screw and is tapered at its end towards the screw, said aperture having a diameter larger than the diameter of the projecting portion of said sleeve, and the nut member locking plate having a slotted frustoconical portion which non-releasably engages around the sleeve portion to prevent axial displacement of the nut member in the frame means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |