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:
Sep. 26, 1978
Filed:
Mar. 02, 1977
Applicant:
Inventor:
Staffan B Persson, Kenmore, NY (US);
Assignee:
American Optical Corporation, Southbridge, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
351 38 ; 248419 ; 248421 ;
Abstract
A mechanism for supporting an instrument which provides finger-tip adjustment in two or three directions is described. Torsional springs are used to counterbalance the instrument weight. An interconnected linkage arrangement permits vertical motion and horizontal motion in one direction. Horizontal motion in the other direction is obtained by axially sliding the instrument frame along shafts extending between pivot points of the interconnected linkage. An optional feature for ophthalmic instruments includes a mechanism for alternatively shifting the instrument in a horizontal direction between first and second chosen positions.