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Eugene Pastelak received US Patent No. 3,873,106 on March 25, 1975, filed April 17, 1972. It was assigned to Raybestos Manhattan Inc.
The patent's abstract:
Jointless packing rings are made by passing one or more ends of yarn through a bath of heat-curable polymeric binder, winding the yarn in the form of an annular helix, coating the exterior surfaces of the yarn helix with additional polymeric binder, and subjecting the yarn helix to heat and pressure to consolidate the yarn convolutions upon each other and to set the binder.
- Author
- Eugene Pastelak
- Published by
- US Patent and Trademark Office
- Series
- US Patent No. 3,873,106
- Date
- March 25, 1975
- Library no.
- ACL Doc 22846 · asbestosclaims.law/library/22846
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 5 pages · 502 KB
Where it was listed
- Asbestos, August 1975, in its patents department (the year's issues)
Cite this document
Eugene Pastelak. “Jointless packing ring and method of making same (US Patent 3,873,106, 1975).” March 25, 1975. US Patent No. 3,873,106. US Patent and Trademark Office. AsbestosClaims.Law Library, ACL Doc 22846. https://asbestosclaims.law/library/22846.
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