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:
Jan. 18, 2000
Filed:
Oct. 23, 1997
Applicant:
Inventor:
Fujio Yamane, Tottori-ken, JP;
Assignee:
Hitachi Metals, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C / ;
U.S. Cl.
CPC ...
418259 ;
Abstract
The vane 1 is substantially in a flat rectangular parallelepiped shape having (a) two wide side surfaces 1c, 1c' opposing in the thickness direction and being slidable in each guide groove 12 of a rotor 11 of an actuator, (b) two narrow side surfaces 1d, 1d' opposing in the width direction, (c) an as-cold-worked top surface 1a having an arcuately projecting cross section in a plane perpendicular to the width direction and being in slidable contact with a cam surface 14 of the actuator 13 for sealing, and (d) a bottom end surface 1e opposing the top surface 1a, both ends of said top surface 1a in the width direction being bulging toward the cam surface 14.