Patent US3563580A successfully refreshed from Google Patents.
US3563580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame joint
Assignee: Individual
•
Filing: 1968-09-11
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Granted: 1971-02-16
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Expires: 1988-09-11
Abstract
Abstract A jointing member for limbs of a frame is in the form of a hollow tapered unit open at its wider end, comprising more than two flat wall surfaces each inclined to each neighboring flat wall surface by an angle differing substantially from 90*, and some of said wall surfaces being apertured to receive bolting means. The member may be shaped as a truncated pyramid. In setting up a frame a flattened end of a frame limb is held between facing wall surfaces of two of said jointing members, by bolting means passing through the jointing members and the frame limb.
Inventors
- 👤 Anthony Frederick Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:29
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/19; E04B1/1903; E04B1/1912; E04B2001/1915; E04B2001/1918; E04B2001/1924; E04B2001/1927; E04B2001/1933; E04B2001/1957; E04B2001/1963; E04B2001/1978; E04B2001/1981; E04B2001/1984; E04B2001/1987; Y; Y10; Y10T; Y10T403/00; Y10T403/34; Y10T403/341; Y10T403/342; Y10T403/343; Y10T403/347
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A frame for structural purposes comprising a cluster of jointing members, each jointing member comprising a hollow flatwalled body of truncated pyramidal shape, open at its wider end, said body being formed of four substantially identical conjoined sidewalls which are at an angle of substantially 45* to the base plane of the pyramid, each sidewall being inclined to each adjacent sidewall by an angle differing substantially from 90*, each of said sidewalls being apertured for attachment to a similar sidewall of another, like, jointing member, said members being in packed array with their sidewalls facing the sidewalls of adjacent jointing members of the packed array, and frame limbs having their ends located between at least some of said pairs of facing sidewalls and clamped therein by bolting means, said frame limbs projecting outwardly from the said cluster of jointing members in at least three mutually substantially perpendicular planes.
Claim 2
Dependent Claim
148 words
A frame for structural purposes comprising a cluster of jointing members, each jointing member comprising a hollow flatwalled body of truncated pyramidal shape, open at its wider end, said body being formed of four substantially identical conjoined sidewalls which are at an angle of substantially 45* to the base plane of the pyramid, each sidewall being inclined to each adjacent sidewall by an angle differing substantially from 90*, each of said sidewalls being apertured for attachment to a similar sidewall of another, like, jointing member, said members being in packed array with their sidewalls facing the sidewalls of adjacent jointing members of the packed array, and frame limbs having their ends located between at least some of said pairs of facing sidewalls and clamped therein by bolting means, said frame limbs projecting outwardly from the said cluster of jointing members in at least three mutually substantially perpendicular planes.
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |