Patent US4452314A successfully refreshed from Google Patents.
US4452314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of installing a reinforced thermosetting resin sucker rod assembly composed of pultruded arcuate sections
Assignee: Owens Corning Fiberglas Technology Inc
•
Filing: 1982-04-19
•
Granted: 1984-06-05
•
Expires: 2002-04-19
Abstract
Abstract Pultruded reinforced thermosetting resin arcuate sections are wound respectively on spools, the spools are transported to a well site, and the arcuate sections are unwound from the spools and assembled into a sucker rod.
Inventors
- 👤 Earl M. Zion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:05
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/14; F04B53/144; E; E21; E21B; E21B17/00; E21B17/20; E21B19/00; E21B19/22; F16; F16L; F16L31/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49893
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A method of installing sucker rod in a well comprising providing a plurality of spools each having a length of a pultruded reinforced thermosetting resin arcuate section wound thereon, assembling the arcuate sections into a rod by pulling them together from the spools with a pulling and assembling apparatus, and depositing the rod from the pulling and assembling apparatus down a well.
Claim 2
Independent Claim
62 words
A method of installing sucker rod in a well comprising providing a plurality of spools each having a length of a pultruded reinforced thermosetting resin arcuate section wound thereon, assembling the arcuate sections into a rod by pulling them together from the spools with a pulling and assembling apparatus, and depositing the rod from the pulling and assembling apparatus down a well.
Claim 3
Dependent Claim
27 words
A method as claimed in claim 1 including applying hot-melt adhesive between each pair of adjacent arcuate sections before the arcuate sections are assembled into the rod.
Claim 4
Dependent Claim
62 words
A method as claimed in claim 1 including providing a spool having a length of thermoplastic tubing wound thereon, assembling the arcuate sections around the tubing by pulling the tubing from its spool along with the pulling of the arcuate sections respectively from their spools by the pulling and assembling apparatus, and heating the tubing before its assembly with the arcuate sections.
References Cited (Backward Citations)
US1303687A
Cited
US3126035A
Cited
US3034566A
Cited
US3116781A
Cited
JPS49278A
Cited
US3889579A
Cited
US4205926A
Cited
US4298554A
Cited
GB2032333A
Cited
US4195691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-05 | 1987-12-05 | 1988-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-05 | 1991-12-05 | 1992-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-05 | 1995-12-05 | 1996-06-05 | $7700.00 | Window Closed / Lapsed |