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:
Dec. 30, 1997
Filed:
Sep. 29, 1995
Applicant:
Inventors:
Garril J Paterick-Smith, Orleans, CA;
David H Gerwing, Greely, CA;
Assignee:
Hovey Industries, Ltd., Gloucester, CA;
Primary Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
246428 ; 104279 ; 1262 / ; 238 29 ; 238107 ;
Abstract
There is provided a new and useful apparatus for use in a railway switch heating assembly. The apparatus includes a hollow structural member adapted to replace a conventional railway tie and adapted to be connected to a source of heated air, and a mechanism for discharging the heated air from the hollow member to desired locations along the assembly.