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:
Feb. 06, 1996
Filed:
Jun. 03, 1994
Applicant:
Inventors:
Matthew F Cali, Monroe, NY (US);
Jerome J Cuomo, Lincolndale, NY (US);
Donald J Mikalsen, Carmel, NY (US);
Joseph D Rutledge, Mahopac, NY (US);
Edwin J Selker, Palo Alto, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
341 34 ; 341 22 ; 200 / ; 345168 ; 345160 ; 338 99 ; 338114 ; 338128 ;
Abstract
A strain sensitive columnar transducer for a data entry keyboard contains a column upstanding from the keyboard. Strain sensitive orthogonally oriented patterns are formed on a single flexible planar sheet which is sliced to place each of the patterns on a separate tab. The planar sheet is forced over the column so that the patterns lie up against the sides of the column to measure force exerted on the column.