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:
May. 24, 1977
Filed:
Jul. 16, 1976
Applicant:
Inventors:
William Robert Weiss, Walnut Creek, CA (US);
James Judson Cooksey, Colonial Heights, VA (US);
Wilbur Leon Stables, Matoaca, VA (US);
Assignee:
Allied Chemical Corporation, Morris Township, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
57 345 ; 28-14 ; 57 / ; 57 773 ; 181 42 ; 226 97 ;
Abstract
A muffler for use in conjunction with an aspirator during the production of multifilament, synthetic yarn is provided. Audible noise which is emitted at the inlet end of the aspirator is reduced by up to 22.5 .DELTA.dB(A) and brought to within acceptable levels through the use of a perforated tube, resonant chamber, and sound absorbing means. The tension of the aspirated yarn is maintained by finishing the muffler inlet end with a high RMS surface.