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US3744206A Expired / Lapsed US ⏱️ 0.0 years remaining

Heavy duty space frame four-way space frame

Assignee: Individual
•
Filing: 1971-05-27
•
Granted: 1973-07-10
•
Expires: 1991-05-27
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Abstract

Abstract A space frame adapted to be supported across a bearing support comprises a plurality of spaced, substantially parallel chords arranged in upper and lower planes. A plurality of joist-type web members are disposed between the chords of the two planes, transversely of the chords. Connecting means interconnect the chords and web members. Support means for the chords and web members support the same separately on the bearing support. The completed assembly thus becomes a two-way joist system whereof the joist-type web members comprise one set of joists and the transversely arranged chords interlocked with the web members comprise the other set.

Inventors

  • 👤 D Nickel
  • 👤 N Dunbar
  • 👤 S Nelson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 13:46
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/18; E04B1/26; E04B1/2604; E04B1/19; E04B2001/1924; E04B2001/1927; E04B2001/193; E04B2001/1933; E04B2001/1945; E04B2001/1951; E04B2001/1957; E04B2001/1963; E04B2001/1981; E04B2001/1984; E04B2001/2672; E04B2001/2696

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 152 words
A heavy duty space frame, comprising: a. a plurality of spaced, substantially parallel primary chords arranged in upper and lower planes, the chords of each plane being laterally offset from the chords of the other plane, b. a plurality of web members disposed in angularly divergent pairs between and transversely of the primary chords of the two planes, each web member forming a truss having upper and lower chords interconnected by a plurality of links arranged zig-zag therebetween, c. a plurality of connector members for connecting the primary chords to the truss chords, each connector member comprising a base plate and a pair of socket members projecting from the base plate at the divergent angle of the pairs of web members and dimensioned to receive the truss chords therein, d. means for securing the primary chords to the base plates, and e. means for securing the truss chords to the socket members.
Claim 2
Dependent Claim 152 words
A heavy duty space frame, comprising: a. a plurality of spaced, substantially parallel primary chords arranged in upper and lower planes, the chords of each plane being laterally offset from the chords of the other plane, b. a plurality of web members disposed in angularly divergent pairs between and transversely of the primary chords of the two planes, each web member forming a truss having upper and lower chords interconnected by a plurality of links arranged zig-zag therebetween, c. a plurality of connector members for connecting the primary chords to the truss chords, each connector member comprising a base plate and a pair of socket members projecting from the base plate at the divergent angle of the pairs of web members and dimensioned to receive the truss chords therein, d. means for securing the primary chords to the base plates, and e. means for securing the truss chords to the socket members.
Claim 3
Dependent Claim 54 words
The space frame of claim 1 wherein each primary chord is formed of two laterally spaced segments and the base plate of each connector member includes a tongue projecting from the side of the base plate opposite the pair of socket members for reception between the two laterally spaced segments of the primary chords.
Claim 4
Dependent Claim 56 words
The space frame of claim 1 wherein each truss chord is formed of two laterally spaced segments, the links have flattened ends interposed between the laterally spaced segments, and the means for securing the truss chords to the socket members comprise pin means extending through the socket members, laterally spaced chord segments and flattened link ends.
Claim 5
Dependent Claim 228 words
The space frame of claim 1, wherein each primary chord is formed of two laterally spaced segments, and including means for attaching the frame to underlying bearing supports arranged in opposite spaced pairs with one pair disposed perpendicularly to the other, said attaching means comprising a. a plurality of primary chord supports each comprising a base plate, a central partition projecting upwardly from the base plate for reception between the two laterally spaced segments of the primary chords in said lower plane, a pair of socket members projecting upwardly from the central partition at the divergent angle of the pairs of web members and dimensioned to receive the lower truss chords therein, b. means for securing the base plates of the primary chord supports to one of said pairs of bearing supports, c. means for securing the lower truss chords to the socket members of each primary chord support, d. a plurality of web member supports each comprising a base plate and a pair of socket members projectIng upwardly therefrom at the divergent angle of the pairs of web members and dimensioned to receive the lower truss chords therein, e. means for securing the base plates of the web member supports to the other of said pairs of bearing supports, and f. means for securing the lower truss chords to the socket members of each web member support.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-07-09 1977-01-08 1977-07-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-09 1981-01-08 1981-07-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-09 1985-01-08 1985-07-10 $7700.00 Window Closed / Lapsed

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