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:
Sep. 23, 2014
Filed:
Apr. 12, 2011
Fumio Tanaka, Kawasaki, JP;
Mitsuhiro Haraguchi, Shiraoka, JP;
Mutsumi Shibuya, Yokohama, JP;
Renji Hayashi, Matsudo, JP;
Yoshinori Kato, Matsudo, JP;
Akiko Kawasaki, Yokohama, JP;
Fumio Tanaka, Kawasaki, JP;
Mitsuhiro Haraguchi, Shiraoka, JP;
Yoshihiko Kawasaki, Tokyo, JP;
Mutsumi Shibuya, Yokohama, JP;
Renji Hayashi, Matsudo, JP;
Yoshinori Kato, Matsudo, JP;
Showa Yakuhin Kako Co., Ltd., Chuo-ku, Tokyo, JP;
Abstract
A motorized syringe for use with two types of dental anesthetic solution-filled cartridges, having a plunger plug in the 1.8 ml cartridge pushed by a push rod by a length required to push a plunger plug in the 1.0 ml cartridge. The syringe includes a cartridge holder for use with 1.0 ml and 1.8 ml cartridges, the push rod having a 1.0 ml position and a 1.8 ml position drawn back from the 1.0 ml position so that push rod movement can end at a common terminal position for both, a sleeve adapted to receive the push rod rear end when pushed back from the common terminal position, and to be not interfered with by the push rod's rear end when it is in the 1.0 ml position, the sleeve being pushed rearward with the push rod's rear end when pushed back to the 1.8 ml position.