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:
Nov. 16, 1982
Filed:
Jan. 07, 1980
Tohru Nakajima, Tokyo, JP;
Koichi Kamoi, Yoshikawa, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A counterbalance device for operation with the manipulator of a laser knife in which the moment of the knife is maintained in a balanced state over the entire range of movement of the knife so that the movement of the knife is smooth over its entire range and its operability highly increased. A counterbalance device of the invention is coupled to the manipulator at a fulcrum point. The centers of gravity of the manipulator and counterbalance device are in the same vertical plane. The center of gravity of the counterbalance device is moved in parallel with the movement of the center of gravity of the manipulator. In preferred embodiments, the counterbalance device includes arm sections which are geometrically similar to the arm structure of the manipulator device. A rotatable arm of the counterbalance device is coupled through rotatable links to the corresponding rotatable arm of the manipulator so as to maintain dynamical balance.