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. 10, 1976
Filed:
May. 19, 1975
Dick Charles Vermeer, Chester, VA (US);
Raymond Joseph Biron, Colonial Heights, VA (US);
Allied Chemical Corporation, Petersburg, VA (US);
Abstract
In stuffer box crimping of yarn, yarn is forced into a crimping chamber to form a wad and discharged with a discharge control being varied in response to sensing the position of the wad at the exit of the crimping chamber. The improvement of this invention comprises sensing the position of the yarn wad in the crimping chamber by issuing at least one jet of a fluid aligned to issue across the exit of crimping chamber and receiving the jet in an enlarged orifice communicating with a pressure sensor controller so the yarn wad unfolding point is sensed by interrupting the jet of fluid to thereby regulate the discharge controller with the pressure sensor controller.