Title:
Polish rod stuffing box
United States Patent 2567479
US Patent References:
/0354936.html
- - 0354936

Packing
- - 1859039

Stuffing box
- - 1973323

Stuffing box
- - 2069443

Drilling head
- - 2126007


Inventors:
Hebard, Glen G.
Publication Date:
09/11/1951
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Assignee:
PHILLIPS PETROLEUM CO
Primary Class:
277/329
Other Classes:
277/513, 277/530, 277/504, 277/522
International Classes:
E21B33/08; F16J15/18; E21B33/02
US Patent References:
2150529Rotary swivel
2243598Wellhead fitting
2480055Stuffing box construction