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:
Feb. 10, 1976
Filed:
Dec. 02, 1974
Takashi Ishida, Ohi, JA;
Mikuni Kogyo Co., Ltd., Tokyo, JA;
Abstract
The impulse signal producing device comprises a rotatable sleeve which has several small holes and/or slots, a supply body which is formed with air ejecting openings at positions inside the rotating paths of the small holes and/or slots, and a receiving cover which is formed with output ports at positions corresponding to the air ejecting openings. The slot is extended in the circumferential direction of the rotatable sleeve, and one end of the slot in the rotating direction is arranged on the same generating line of the rotatable sleeve as that including the position of the small hole. Air ejected from the openings passes through the small hole and slot of the rotatable sleeve and flows out of the output ports, to produce output pulses. By varying the length of the slot in the circumferential direction, the pulse width can be varied. By varying the arrangement of the small holes and slots, it is possible to vary the phases of the output pulses or to produce several pulses at the same time.