Rod guide or paraffin scraper
United States Patent 3399730
US Patent References:
Detachable sucker-rod guide
- - 1696543

Pump-rod attachment
- - 1716247

Rope guide
- - 1774616

Double cross center guide and paraffin scraper
- - 1897507

Paraffin remover
- - 2712853


Inventors:
Pourchot, Melvin E.
Publication Date:
09/03/1968
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Assignee:
CENTRAL RES INC
Primary Class:
166/176
Other Classes:
166/241.400
International Classes:
E21B37/02; E21B37/00
US Patent References:
2928472Opposed slot scraper and guide
3079998Scraper
3251919Method of providing paraffin scrapers on sucker rods