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:
Jun. 09, 1992
Filed:
May. 16, 1991
James C Davis, Jr, Carlisle, MA (US);
Brooks Automation, Inc., North Billerica, MA (US);
Abstract
Valve mechanism for high-vacuum clean environments, wherein a slot aperture is closed by a gage having a lever. Motion of the gate which covers and uncovers the slot is imparted to the gate by longitudinal movement of the lever. Motion of the gate which seals and unseals the slot is imparted by pivoting movement of the level about a fulcrum near the center of the lever. The pivoting movement is imparted at a time different from that at which the longitudinal movement is imparted, and the pivoting movement may be imparted by means separate from that which imparts the longitudinal movement.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile