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:
Aug. 03, 2004
Filed:
Nov. 05, 2002
Kazuhiro Ichikawa, Tokyo, JP;
Kabushiki Kaisha Top, Tokyo, JP;
Abstract
A delivery container has a casing filled with a chemical liquid and a cap mounted on an upper end of the casing. A hollow cylinder having slots is disposed in and integrally formed with a lower portion of the casing. A tubular piston with a check valve is slidably disposed in the cylinder. The piston is connected to the cap, which has a discharge port, by a hollow shaft which extends vertically through an upper portion of the casing, so that vertical movement of the cap can be transmitted via the shaft to the piston. Inasmuch as the cylinder is disposed in the bottom of the casing, the cylinder is filled at all times with the chemical liquid which is supplied via the slots by gravity. The chemical liquid does not need to be drawn upwardly, and can be discharged in a constant quantity from the discharge port in one cycle of operation of the delivery container.