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:
May. 15, 1984
Filed:
Nov. 23, 1981
Walter L Reid, Jr, Mattapoisett, MA (US);
Robert A Van Stone, Mattapoisett, MA (US);
Ralph L Delano, Mattapoisett, MA (US);
Acushnet Company, New Bedford, MA (US);
Abstract
The invention relates to an improved safety device for stopping cable payout in an overspeed condition, and particularly to a safety device for securing an object from falling because of failure of a hoisting device. According to the invention, an inertial actuated drum locking mechanism comprises an inertial member mounted on a cable rewind drum. The inertial member is pivotable so that when actuated by inertial force above a predetermined value due to overspeed rotation of the drum, the inertial member moves to engage a fixed member for arresting further motion of the drum. The inertial member is held in place until the outward force exceeds the predetermined value, at which point, the inertial member toggles outward to provide rapid and positive engagement of the locking mechanism.