US4602807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod coupling for oil well sucker rods and the like
Assignee: Individual
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Filing: 1984-05-04
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Granted: 1986-07-29
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Expires: 2004-05-04
Abstract
Abstract A coupling for joining sucker rods in an oil well pump and the like, having a metal sleeve with an axially threaded bore and an exterior coating on the sleeve producing a cylindrical coupling, with the coating being an abrasive resistant thermoplastic hydrourethane polymer.
Inventors
Rudy Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:24
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1071; E21B17/02; E21B17/04; E21B17/042; E21B17/0426; F; F04; F04B; F04B53/00; F04B53/14; F04B53/144; F16; F16L; F16L57/00; F16L57/06; Y; Y10; Y10T; Y10T403/00; Y10T403/47; Y10T403/471; Y10T403/57; Y10T403/5746
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
A coupling for joining solid reciprocating sucker rods to form a rod string in a well pump or the like comprising a unitary metal sleeve having an axial threaded bore and an irregular outer surface, and a homogeneous and non-fibrous coating on said sleeve over said outer surface providing an externally substantially cylindrical coupling, said coating comprising a flexible and abrasive resistant thermoplastic hydrourethane polymer formed on said irregular outer surface of said sleeve while in the molten state.
References Cited (Backward Citations)
No citation records indexed.
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