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:
Jul. 14, 2026
Filed:
Dec. 22, 2021
Canyon Corporation, Tokyo, JP;
Mitsuaki Shazuki, Sanyo Onoda, JP;
CANYON CORPORATION, Tokyo, JP;
Abstract
[Object] To provide a trigger sprayer excellent in ejection responsiveness and ejection stability. [Solution] The present invention is directed to a trigger sprayerhaving a base bodyhaving a main cylinder portionand a sub-cylinder portionwhich can store liquid, a piston portionslidable along an inner wall of the main cylinder portion, a triggerfor sliding the piston portion, a first valve Vwhich opens and closes in accordance with pressure inside the main cylinder portion, and a second valve Vwhich opens and closes in accordance with pressure of the liquid, the second valve Vhaving a second valve piston portionslidable along an inner wallof the sub-cylinder portionand an inverted-dome-shaped dome spring portionfor pressing the second valve piston portion, and the dome spring portionbeing elastically deformable.