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:
Mar. 10, 1981
Filed:
Dec. 20, 1979
Applicant:
Inventor:
Walter L Calhoun, Chagrin Falls, OH (US);
Assignee:
McNeil Corporation, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E01B / ; E21D / ;
U.S. Cl.
CPC ...
405260 ; 52 39 ; 52704 ; 104111 ; 248317 ; 248647 ;
Abstract
An improved roof or ceiling fitting for a monorail system, particularly useful in low seam coal mines. Rail suspension assemblies are each secured in a single counterbored roof hole and are adjustable vertically and laterally for alignment. A bolt is anchored in a hole and supports a collar-end of a crank-shaped suspension unit within the counterbore. A suspension-pin end offset from the collar axis extends below the roof to support a cleat for attachment to a rail. A roof plate is threaded on the collar and bears against the roof.