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. 08, 1980
Filed:
Nov. 15, 1977
Tomo Ito, Katuta, JP;
Hitachi, Ltd., , JP;
Abstract
A dashpot with a fast idle device for carburetor throttles comprises a dashpot for damping a rapid closing movement of the throttle and a fast idle device for causing an automobile to run at fast idle. The fast idle device has a vacuum chamber separated from an air chamber of the dashpot by a partition, and a rod passing through a hole made in the partition, which rod is secured to a diaphragm defining a part of the vacuum chamber and axially moved with vacuum induced into the vacuum chamber. For sealing a gap defined between the rod and the partition, there is provided with a resilent seal member which is disposed in the air chamber of the dashpot and comprises a first portion engaged with an annular groove made in the rod so that the first portion will move in conformity with the axial movement of the rod, a second portion disposed around the gap and airtightly contacting with the partition, and a third portion extending from the first portion to the second portion and having a shape such that the second portion is pressed on the partition more tightly with the vacuum increasing. The seal member is shaped for example like a cup.