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. 17, 2002
Filed:
Sep. 28, 2000
Adrian Barbulescu, Coquitlam, CA;
Rodrigue Boulet, Québec, CA;
Paul Michaud, Ancienne Lorette, CA;
Réal Larochelle, Ancienne-Lorette, CA;
Centre de Recherche Industrielle du Quebec, Montreal, CA;
Abstract
A apparatus for disassembling a threaded bolt and nut assembly wherein the bolt is initially extended through an opening provided on a structure and being secured thereto with the nut axially mounted on a threaded rod of the bolt. The apparatus comprises a tool body, a nut gripping element such as a socket mounted for rotation on a working portion of the tool body, the socket being provided with a bore axially extending theretrough. The apparatus further comprises a rotary actuator mounted on the tool body and operatively coupled to the socket for imparting torque to the mounted nut in a direction allowing release of the nut from the secured bolt. The apparatus also comprises a pushing device such as a pneumatic power hammer mounted on the tool body and provided with an elongated push member having a working end being axially displaceable within the bore, and a linear actuator mounted on the tool body and operatively coupled to the hammer for selectively displacing the push member between a retracted position allowing the release of the mounted nut and an extended position where the bolt is at least partially withdrawn from said opening upon thrust of the working end of the push member. A pneumatic control system is provided for controlling the rotary actuator and the linear actuator. The apparatus can be provided with a base for supporting the tool body and a holder connecting the base to the tool body while allowing transversal displacement thereof on the holder. A first embodiment uses a base provided with a rotary arm, while a second embodiment uses a base provided with a displaceable carrier mounted on a rail.