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:
Jan. 16, 1979
Filed:
Jun. 29, 1977
Fritz Lenzin, Kilchberg, CH;
Joachim Schubert, Eptingen, CH;
Von Arx AG Maschinenfabrik, Sissach, CH;
Abstract
A cluster of pins, serving to clean the surface of a workpiece, are slidably mounted in bores of a guide plate which is spring-urged against a metallic anvil, with formation of a clearance between the plate and the anvil in which the heads of the pins can move. The anvil is periodically struck by a ram which is freely reciprocable in a tool housing surrounding the anvil and the guide plate, the housing being provided with a pistol grip carrying a trigger that controls admission of compressed air to a chamber at the rear of the housing which is intermittently vented by the advancing ram to a space communicating with the atmosphere via channels in the anvil and perforations of the guide plate, thereby cooling the movable parts of the tool. The guide plate consists of a hard but light-weight resinous material, specifically polyamide 6.