← Back to Patent Explorer
US3282345A Expired / Lapsed US ⏱️ 0.0 years remaining

Guide and scraper

Assignee: Individual
•
Filing: 1964-03-09
•
Granted: 1966-11-01
•
Expires: 1984-03-09
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 James C Tripplehorn

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 22:18
CPC Classifications
E; E21; E21B; E21B37/00; E21B37/02; E21B17/00; E21B17/10; E21B17/1071

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 181 words
IN OIL WELL EQUIPMENT, A GUIDE AND SCRAPER TO BE ATTACHED TO A SUCKER ROD, SAID GUIDE AND SCRAPER COMPRISING AN ELONGATED BODY OF RESILIENT DEFORMABLE MATERIAL WITH A LONGITUDINAL BORE THERETHROUGH TO RECEIVE THE ROD, THE DIAMETER OF THE BORE BEING SLIGHTLY LESS THAN THE DIAMETER OF THE ROD, THE BODY HAVING A SLOT THROUGH ITS SIDE DISPOSED TRANSVERSELY OF THE BORE AND EXTENDING TO THE FULL DEPTH THEREOF AND WIDER THAN THE DIAMETER OF THE BORE, AND SAID BODY HAVING TWO LONGITUDINAL SLOTS THERETHROUGH COMMUNICATING WITH SAID BORE AND NARROWER IN WIDTH THAN THE DIAMETER THEREOF, AND THESE TWO SLOTS EXTENDING FROM OPPOSITE ENDS OF THE TRANSVERSE SLOT TO OPPOSITE ENDS OF THE BODY, AND THE EXTERIOR CONTOUR OF SAID BODY TAPERING DOWN IN DIAMETER FROM THE TRANSVERSE SLOT TOWARD AT LEAST ONE END OF THE BODY TO PROVIDE AT THAT END THEREOF A GENERALLY FRUSTOCONICAL SURFACE, EACH OF SAID TWO SLOTS BEING FLARED FOR PART OF ITS LENGTH AND THEREBY WIDENED WHERE IT OPENS INTO THE TRANSVERSE SLOT TO A WIDTH GREATER THAN THE DIAMETER OF SIDE BORE.

References Cited (Backward Citations)

US2436994A Cited
US2928472A Cited
US2928473A Cited
US3083772A Cited
US3186773A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-10-31 1970-05-02 1970-11-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-10-31 1974-05-02 1974-11-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-10-31 1978-05-02 1978-11-01 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag