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:
Sep. 29, 1992
Filed:
May. 30, 1991
Applicant:
Inventors:
Assignee:
Tokyo Tatsuno Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ; F04B / ;
U.S. Cl.
CPC ...
141 59 ; 141 44 ; 141 45 ; 417405 ;
Abstract
A device for recovering vapor in a vehicle fuel tank has a hydraulic motor arranged in the way of a liquid duct for feeding volatile liquid from a fuel reservoir tank to a gun nozzle mounted at the free end of the liquid duct, and a pneumatic pump arranged in the way of a vapor duct for feeding the vapor in the vehicle fuel tank through the gun nozzle to the fuel reservoir tank. The hydraulic motor and the pneumatic pump have a pair of meshing rotors, respectively. One pair of rotors are of substantially same configuration and size with those of the other pair of rotors. The rotors of the pneumatic pump are driven by the hydraulic motor rotors through multiplying gearings.