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:
Dec. 18, 1979
Filed:
Jun. 07, 1978
Hiromu Konishi, Toyota, JP;
Kiyoshi Nishiwaki, Susono, JP;
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Abstract
An inertia-controlled valve unit includes a valve seat provided within a valve chamber and a ball disposed within the valve chamber to co-operate with the valve seat and rolling toward the valve seat to cut-off excessive braking pressure applied to rear wheel brake cylinders. The inertia-controlled valve unit comprises a solenoid winding attached to the valve housing, a plunger passing through the solenoid winding into the valve chamber and located behind the ball, the plunger being moved forwardly by energization of the solenoid winding to engage the ball against the valve seat, a normally open switch attached to a portion of a push-rod for connecting the solenoid winding to a source of electricity when closed, and a movable element slidable on the push-rod to be displaced toward the switch by inertia force acting thereon when the brake pedal is rapidly depressed, the movable element closing the switch when engaged with the switch.