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:
Feb. 22, 2000
Filed:
Jun. 12, 1998
Mark Arthur Seddon, Reading, GB;
Roy Nicoll, Wokingham, GB;
The Gillette Company, Boston, MA (US);
Abstract
A marking instrument includes a reservoir chamber for marking fluid, a channel for conducting marking fluid from the reservoir chamber for supply to a marking tip, and a valve for controlling supply of fluid through the channel. The valve includes a seat member with a port, a diaphragm having an edge for cooperation with the seat member to close the port, and a free surface extending from the edge to a position at which the diaphragm is held against movement. The seat member is movable to deflect the diaphragm for opening the valve. The free diaphragm surface extends away from the edge at an angle of 45.degree. to 85.degree. when the valve is closed.