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:
Dec. 21, 1982
Filed:
Jul. 14, 1980
Kiyoshi Itoh, Kamifukuoka, JP;
Tetuo Kamoshita, Toda, JP;
Teruo Sakai, Warabi, JP;
Harumi Kawasaki, Oyaguchi kami, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A counterbalance mechanism for a laser knife device which includes a manipulator in which the overall height of the balance mechanism is quite short and all rotational moments of the manipulator are cancelled for all operative positions thereof. A base support arm is rotatably mounted around a short first hollow arm with a second hollow arm extending through upright portions of the base support arm joined at its two ends through articulations to the upper end of the first hollow arm and a third hollow arm. A parallelogram link mechanism is formed including the upright members of the base support arm, first and second substantially parallel support arms and a third substantially vertical support arm upon which a counterbalance weight is mounted. One end of the first support arm is pivotably mounted between the upright members of the base support arm while the corresponding end of the second support arm is pivotably mounted around the second hollow arm between the upright members.