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. 15, 1977
Filed:
Feb. 23, 1976
William D Rempel, Howell, MI (US);
Sycor, Inc., Ann Arbor, MI (US);
Abstract
A data printer having removable, and interchangeable, paper-feed modules, such as may embody a tractor or pin-feed-type paper-feed mechanism. The interchangeable modules each have guide ways which cooperate with and move along complementary guideways supported by the printer main frame to guide the selected module into place and seat it in a particularly defined position. A mechanical latch locks the seated module to maintain it in place. The paper-feed mechanism of each module is driven by a rotatable member, with the power train including a motor-driven worm mounted on the printer and a mating worm-gear carried on the removable paper-feed module. The worm is mounted in an upright position, and the worm-gear moves into mating relation with the worm by travelling an upright path, but with a small acute angle between such paths. The worm and worm-gear have a tooth or thread profile with a rounded nose section.