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:
Apr. 19, 1988
Filed:
May. 04, 1987
Matsushita Electric Industrial Co. Ltd., Osaka, JP;
Abstract
In regulating a burning gas quantity of a gas combustion apparatus, a gas flow controller is used. The gas flow controller is constructed such that a closing member within a cock is rotated by using a motor. The closing member has a plurality of holes formed in the axial direction of the member and a plurality of grooves each corresponding to the hole and formed in the circumferential direction of the member. The cock is used for changing, opening and closing a plurality of orifice passageways. The motor is driven in accordance with a signal from a position determining unit which discriminates the position of the cock. The gas flow controller can advantageously ensure a high precision of gas flow, a high reduction ratio, and a low power consumption.