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:
Apr. 12, 1977
Filed:
Oct. 23, 1975
Salvatore J Cretella, North Haven, CT (US);
Other;
Abstract
A machine for resurfacing the leading edge portions of worn or cracked turbine blades and the like, comprising a machine bed, a power driven abrasive belt extending around multiple pulleys disposed above the bed, and a carriage movable over the bed in directions toward and away from the belt. A clamping fixture is pivotally mounted on the carriage and includes a pair of vises for gripping the opposite end portions of the blade to be resurfaced. Powered means are provided for imparting a periodic reverse rocking movement to the fixture while the carriage is being moved toward the belt. The arrangement is such that the blade engages the belt while undergoing simultaneous swiveling or rocking movement, this resulting in a precision removal of controlled amounts of the blade along the curved contour at its leading edge.