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. 04, 2007
Filed:
Sep. 20, 2005
Mike Schats, Eindhoven, NL;
Bob Depont, Dongen, NL;
Pieter Dekker, Baarland, NL;
Anton Krijnen, Klundert, NL;
Mike Schats, Eindhoven, NL;
Bob DePont, Dongen, NL;
Pieter Dekker, Baarland, NL;
Anton Krijnen, Klundert, NL;
Varco I/P, Inc., Houston, TX (US);
Abstract
An elevator having, in at least certain aspects, an elevator body with two opposed ends and an elevator opening in the body, a door pivotably mounted to the body for selectively closing off the elevator opening, a lock bar on the elevator body, door latch apparatus on the door including a movable member to selectively and releasably hold the lockbar, and locking apparatus for selectively locking the door in position; and, in certain aspects, verification apparatus for maintaining the locking apparatus in position.