Patent EP0600706A1 successfully refreshed from Google Patents.
US4197909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protector for a deflector guide of a mandrel
Assignee: Camco International Inc
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Filing: 1978-12-15
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Granted: 1980-04-15
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Expires: 1998-12-15
Abstract
Abstract A protector for preventing tools from becoming engaged between an internally-mounted deflector guide and the inside of the body of a side-pocket mandrel. The protector includes a protrusion connected to the body adjacent to and above the deflector guide which extends into the interior of the body for blocking the space between the deflector guide and the body thereby preventing well tools from becoming stuck. The protrusion may include one or more arcuate members plug welded into the body. In addition, the protrusion may be made intergal with or connected to the upper end of the deflector guide. Preferably, at least the outer and upper edges of the protrusion are beveled outwardly towards the inside of the mandrel body for eliminating engaging shoulders. In other form, the protrusion may be formed of indentations made in the wall of the body.
Inventors
- 👤 Ben D. Terral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:33
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
153 words
In a mandrel for use in a well tubing having a body with an open bore extending therethrough and an offset bore adjacent the open bore, an opening through the body in communication with the offset bore, a valve pocket positioned inside the body in the offset bore beside the body opening and secured to the body, a deflector guide connected to the pocket and extending upwardly and outwardly from the open bore for providing a deflector guide, and a locking lug positioned above the pocket, the improvement in a protector for preventing tools from becoming engaged between the deflector guide and the inside of the body comprising, a protrusion connected to the body at a position adjacent to, aligned with, and above the deflector guide and extending into the interior of the body for preventing tools from becoming engaged between the top of the deflector guide and the inside of the body.
Claim 2
Dependent Claim
153 words
In a mandrel for use in a well tubing having a body with an open bore extending therethrough and an offset bore adjacent the open bore, an opening through the body in communication with the offset bore, a valve pocket positioned inside the body in the offset bore beside the body opening and secured to the body, a deflector guide connected to the pocket and extending upwardly and outwardly from the open bore for providing a deflector guide, and a locking lug positioned above the pocket, the improvement in a protector for preventing tools from becoming engaged between the deflector guide and the inside of the body comprising, a protrusion connected to the body at a position adjacent to, aligned with, and above the deflector guide and extending into the interior of the body for preventing tools from becoming engaged between the top of the deflector guide and the inside of the body.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 wherein the protrusion includes one or more arcuate members plug welded into the body.
Claim 4
Dependent Claim
18 words
The apparatus of claim 2 wherein the protrusion is connected to the upper end of the deflector guide.
Claim 5
Dependent Claim
24 words
The apparatus of claim 2 wherein the outer and upper edges of said protrusion are bevelled outwardly towards the inside wall of the body.
Claim 6
Dependent Claim
159 words
In a mandrel for use in a well tubing having a body with an open bore extending therethrough and an offset bore adjacent the open bore, an opening through the body in communication with the offset bore, a valve pocket positioned inside the body in the offset bore beside the body opening and secured to the body, a deflector guide connected to the pocket and extending upwardly and outwardly from the open bore for providing a deflector guide, and a locking lug positioned above the pocket, the improvement in a protector for preventing tools from becoming egaged between the deflector guide and the inside the body comprising, a protrusion of one or more indentations in the wall of the body at a position adjacent to, aligned with, and above the deflector guide and extending into the interior of the body for preventing tools from becoming engaged between the top of the deflector guide and the inside of the body.
Claim 7
Dependent Claim
159 words
In a mandrel for use in a well tubing having a body with an open bore extending therethrough and an offset bore adjacent the open bore, an opening through the body in communication with the offset bore, a valve pocket positioned inside the body in the offset bore beside the body opening and secured to the body, a deflector guide connected to the pocket and extending upwardly and outwardly from the open bore for providing a deflector guide, and a locking lug positioned above the pocket, the improvement in a protector for preventing tools from becoming egaged between the deflector guide and the inside the body comprising, a protrusion of one or more indentations in the wall of the body at a position adjacent to, aligned with, and above the deflector guide and extending into the interior of the body for preventing tools from becoming engaged between the top of the deflector guide and the inside of the body.
Claim 8
Dependent Claim
18 words
The apparatus of claim 5 wherein the indentations have a convex surface on the interior of the body.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |