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:
Aug. 14, 1979
Filed:
Jul. 01, 1977
Seiji Hanaoka, Shiojiri, JP;
Kabushiki Kaisha Suwa Seikosha, Tokyo, JP;
Shinshu Seiki Kabushiki Kaisha, Tokyo, JP;
Abstract
An improved printer comprising a plurality of character rings provided with a plurality of characters on the respective peripheries thereof and corresponding pluralities of ratchet wheels and pawls. Each ratchet wheel is radially mounted on a character ring and a corresponding pawl is oscillatably mounted for engaging its corresponding ratchet at a preselected interval for stopping its associated character ring when a selected character is located at a predetermined position. Guides are provided for determining the constancy of oscillation of the pawls. Each pawl is spring driven into engagement with a corresponding ratchet wheel and a normal bias toward a corresponding ratchet wheel is provided. A releasable restraint acts oppositely to the bias on the pawl for normally preventing the pawl from engaging with its corresponding ratchet wheel. An electromagnetic device is provided for transducing an electronic signal into a mechanical motion which releases the restraint on the pawl whereby the bias on the pawl drives the pawl into engagement with its corresponding ratchet wheel and the character ring associated therewith is thereby fixed for aligning a preselected character in the strike path of an actuable platen. At a print command the platen abuts the character in its path and a paper or like imprint receiver is provided with an imprint of the preselected character.