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. 18, 1983
Filed:
Sep. 09, 1981
Gustave Gagnebin, Yverdon, CH;
Hermes Precisa International, Yverdon, CH;
Abstract
A cassette comprises a casing (1) containing a delivery spool (2) and a receiving spool (4) co-operating with drive means. The ribbon (3) passes from the delivery spool (2) to the receiving spool (4) outside the casing (1). The delivery spool (2) is secured to a toothed wheel (20) which co-operates with a catch (23) of a part (21) biased by a spring (28). This part (21) in the form of a T, is pivotally mounted on the casing (1) at one of the upper ends of the arm or crosspiece of the T and carries return roller (24) at the other end of this arm around which roller the ribbon (3) is diverted in a manner to form a loop. The length of the upper arm of the part (21) is substantially twice as large as the distance separating the catch (23) of the pivot point of the part (21). This arrangement ensures a correct tension of the ribbon ( 3) at all times.