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. 30, 1988
Filed:
Mar. 26, 1987
Hans B Weber, Rotonda West, FL (US);
National Castings, Inc., Oakbrook Terrace, IL (US);
Abstract
An improved saddle frame for a passive steering single-axle truck for a railway freight car that allows for unobstructed passage of infrared rays from the wheel bearings, so that they may be sensed by a hot-box detector mounted on a rail bed. The saddle frame has a center web section including a pair of parallel lower flanges, which flanges are cut back on the inboard sides thereof to allow for the unobstructed passage of the infrared rays. Each inboard section is of considerably reduced width as compared to the outboard sections, with compensatory thickening being provided for both inboard and outboard sections of the flanges. The inboard sides of the saddle frame's upright columns and spring arms are also cut back at a forty-five degree slope in order to ensure that the infrared rays reach the hot-box detector.