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. 05, 2006
Filed:
Aug. 08, 2001
James R. Gillingham, Costa Mesa, CA (US);
Walter Parsadayan, LakeForest, CA (US);
James R. Gillingham, Costa Mesa, CA (US);
Walter Parsadayan, LakeForest, CA (US);
The Chamberlain Group, Inc., Elmhurst, IL (US);
Abstract
A method and apparatus for locking a security gate operating shaft contained in a security gate operating mechanism having a housing from which extends the operating shaft, which may comprise: a locking collar, having at least one engageable protrusion extending radially, mounted on the operating shaft for rotary motion with it; an operating shaft locking mechanism slide mounting assembly attachable to the housing in one of at least two positions; a locking plate slideably mounted in the slide mounting and having an opening in registration with the operating shaft with at least one locking finger extending into the opening and adapted to engage at least one engageable protrusion; an electrically operated sliding unit adapted, when energized to move the slideable plate to one position against gravity, when deenergized to allow the slideable plate to move with gravity to a second position.