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:
Jan. 31, 1989
Filed:
Dec. 05, 1986
Keishiro Kido, Saitama, JP;
Yoshio Saito, Saitama, JP;
Takashi Koizumi, Kanagawa, JP;
Osamu Seshimoto, Saitama, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
A dual pipette device comprises a pair of housings joined rotatably around a vertically extending axis or disposed for lateral movement, a pair of cylinders disposed respectively at lower sections of the housings, a pair of piston members extending vertically, supported by the housings or the cylinders, and respectively having lower end portions vertically slideable in the cylinders, and dropping tip fitting sections disposed at lower end of the housings or the cylinders so that the dropping tip fitting sections communicate with the cylinders. The piston members are provided with a lock member for locking them to each other when the housings are rotated or laterally moved and the distance between the piston members becomes not larger than a predetermined distance, so that the piston members are vertically slideable integrally with each other.