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:
Jul. 27, 1976
Filed:
Feb. 19, 1975
Richard W Beiswenger, Penn Hills Township, PA (US);
Teledyne Mid-America Corporation, Los Angeles, CA (US);
Abstract
A tamping blade is comprised of a blade shoe of steel that is adapted for mounting on the end of a support arm and has a cut-out at the leading edges to support at least one wear-resistant insert. Preferably a plurality of wear-resistant inserts, typically of tungsten carbide, are positioned end to end in the cut-out. Each insert has first and second opposed sides and first and second opposed major surfaces, with the major surfaces being angular to each other to provide a substantially uniform thickness for the body at each of the sides. The first side of each insert has a thickness of at least about 3/8 inch and is adapted to provide a leading edge for the tamping blade extending across the thickness of the blade shoe beyond the leading edge thereof. The first major surface is adapted to provide a wear-resistant facing for the tamping blade during lateral movement, and the second side and the second major surface are adapted to support the insert in the cut-out of the blade for impact loading of the first side of the insert.