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. 17, 1989
Filed:
Jun. 10, 1987
Takahiro Goshima, Kakamigahara, JP;
Yoshiyuki Hattori, Toyoake, JP;
Hiroji Kinbara, Okazaki, JP;
Hiromi Otsuki, Anjo, JP;
Yoshihisa Nomura, Toyota, JP;
Nobuyasu Nakanishi, Toyota, JP;
Nippondenso Co., Ltd., Kariya, JP;
Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
An accumulator has a piston axially slidably disposed in a cylinder mounted in a casing, the cylinder and the piston jointly defining a reservoir communicating with an inlet/outlet port in the casing. A piston rod axially movably disposed in the casing has an end slidably fitted in the cylindrical hole of the piston. The piston rod is normally urged by a spring to force the piston into the reservoir. The accumulator also includes a switch mechanism for detecting the position of the piston in the cylinder. The switch mechanism may comprise a reed switch, a light-sensitive switch, a pressure-sensitive switch, or a pushbutton switch.