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:
Jul. 31, 2001
Filed:
Dec. 22, 1999
Haruo Tsuchida, Tokyo, JP;
Hiroyuki Nakamura, Tokyo, JP;
Yoshino Kogyosho Co., Ltd., Tokyo, JP;
Abstract
A spring member (,) is made of synthetic resin, and comprises a base plate (,) and a pair of spring pieces (,) for returning the plunger (,). Each of said spring pieces (,) comprises a main plate spring (,), a second plate spring (,) and a lower end (,). Said main plate spring (,) is positioned at plunger side, and has a schematically arcuate longitudinal section. Said second plate spring (,) is positioned at nozzle head side, and has a longitudinal section constituting a substantially constant-load plate spring. Said main plate spring (,) and said second plate spring (,) are connected each other at an upper end and a lower end (,) thereof. A locus of elastic deformation of the main plate spring (,) substantially coincides with an arc locus (Y, Z) including a tangent line (X) in an upper surface of the base plate (,).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile