The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 1985
Filed:
Mar. 28, 1980
James Knowles, Bloomfield Hills, MI (US);
Other;
Abstract
A joist formed of a pair of aligned, vertically spaced apart chords interconnected by angularly arranged sheet metal webs extending between the chords. The chords are each formed of a pair of right angle cross-section metal strips, each having a horizontal leg and a vertical leg. The strips of each pair are aligned with their horizontal legs coplanar and with their vertical legs spaced apart a short distance to form a narrow vertical gap therebetween. The webs have opposite end portions which are snugly fit within the vertical gaps and are fastened to the vertical legs of the chord strips. A wood member is fastened upon at least one of the chords by positioning the wood upon the chord strips' horizontal legs and applying nails through the wood and into the gap so that the nails are frictionally locked between the vertical legs. In addition, vertically arranged wood strips interconnect the chords at the opposite ends of the joist.