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:
Mar. 12, 2002
Filed:
Jan. 06, 1999
Dennis J. Krampotich, Shakopee, MN (US);
D. Kerry Kiser, Sherwood, OR (US);
Michael D. Peterson, Chaska, MN (US);
Fluoroware, Inc., Chaska, MN (US);
Abstract
A wafer container comprising an enclosure portion with a door frame defining an opening for insertion and removal of wafers and a door for insertion into the door frame for closing the opening and sealing with the door frame has an improved elastomeric seal. In a preferred embodiment of the invention an elastomeric seal encircles the door, is partially inset in a groove in the door, and has a cantilevered portion extending laterally outwardly from the door to engage a sealing surface of the door and a laterally displaced sealing surface of the door frame when the door is seated. Thus a seal can be provided that is effected almost totally by flexure of the cantilevered portion rather than by compression of the seal.