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:
Aug. 02, 1988
Filed:
Dec. 24, 1986
Applicant:
Inventors:
Timothy S Bowman, Parkersburg, WV (US);
Charles N Domigan, Coolville, OH (US);
Assignee:
Butler Manufacturing Company, Kansas City, MO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B / ;
U.S. Cl.
CPC ...
52221 ; 52 98 ; 52715 ; 2915 / ; 72379 ; 428577 ; 174 48 ;
Abstract
A trench duct power compartment for use over a cellular raceway is fabricated by forming a rectangular-shaped blank and then stamping out a center section to leave portions which are contoured to the shape of the crests of the cellular raceway and thereafter bending the cut-out blank to simultaneously form upright side walls, downwardly extending concrete blockers together with connecting bottom end sections while leaving the bottom midsection open. The contoured portions of the concrete blockers having the same profile as the crests of the cellular raceway and snugly engage therewith.