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George Christenson received US Patent No. 1,556,422 on October 6, 1925.
The patent's description opens (from the scanned text):
My invention relates to packing for piston rods which packing is of the general character described in my prior Patent No. 1,363,565, granted December 28th, 1920, which packing rings consist, essentially, of a composition of matter molded into a form having an inner, tapering, somewhat flexible, lip which rests upon the piston rod and an outer, shorter, thicker, heel portion which occupies the outer portion of the stuffing box when the ring isin use.
- Author
- George Christenson
- Published by
- US Patent Office
- Series
- US Patent No. 1,556,422
- Date
- October 6, 1925
- Library no.
- ACL Doc 23470 · asbestosclaims.law/library/23470
- Rights
- US government work, in the public domain.
Read or download
Read online Download the PDF PDF · 3 pages · 219 KB
Where it was listed
- Asbestos, November 1925, in its patents department (the year's issues)
Cite this document
George Christenson. “Process of Moulding Reinforced Packing Rings (US Patent 1,556,422, 1925).” October 6, 1925. US Patent No. 1,556,422. US Patent Office. AsbestosClaims.Law Library, ACL Doc 23470. https://asbestosclaims.law/library/23470.
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