US3934448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Racked pipe reamer
Assignee: Individual
•
Filing: 1974-11-25
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Granted: 1976-01-27
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Expires: 1994-11-25
Abstract
Abstract A mobile base longitudinally slidably supports a platform and transversely supports an elongated winch cable and pipe reamer supporting trough, in elevated relation. Fluid operated cylinders moves the platform and axially aligns the trough with tubular members to be reamed. An elongated reamer moving rod is connected at its respective ends with winch cables in turn connected, respectively, with a pair of fluid motor sequence operated winches alternately pushing and pulling the rod and reamer into and out of tubular members.
Inventors
- 👤 Lowal L. Hand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:19
CPC Classifications
F; F28; F28G; F28G15/00; B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B9/0323; B08B9/04; B08B9/043; B08B9/0433; B21; B21D; B21D1/00; B21D1/06; B21D1/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
133 words
A reamer for horizontally disposed racked tubular members, comprising: an elongated mobile frame including a substantially horizontal base; a platform longitudinally slidably overlying said base; platform moving means for moving said platform relative to said base; trough means extending transversely of said base in vertically spaced relation above said platform; elevating means for raising and lowering said trough means; a reamer rod slidably supported by said trough; a reamer connected with one end of said rod; a pair of winches each having a flexible element connected with one end of said rod in cooperative opposition; and, means including motors for operating said winches, whereby operation of said winches in sequence alternately pushes said rod and reamer into and through and pulls it back out of the same end of a racked tubular member.
Claim 2
Dependent Claim
133 words
A reamer for horizontally disposed racked tubular members, comprising: an elongated mobile frame including a substantially horizontal base; a platform longitudinally slidably overlying said base; platform moving means for moving said platform relative to said base; trough means extending transversely of said base in vertically spaced relation above said platform; elevating means for raising and lowering said trough means; a reamer rod slidably supported by said trough; a reamer connected with one end of said rod; a pair of winches each having a flexible element connected with one end of said rod in cooperative opposition; and, means including motors for operating said winches, whereby operation of said winches in sequence alternately pushes said rod and reamer into and through and pulls it back out of the same end of a racked tubular member.
Claim 3
Dependent Claim
34 words
The reamer according to claim 6 in which said platform moving means includes: a fluid operated platform cylinder connected at one end with said base and connected at its other end with said platform.
Claim 4
Dependent Claim
33 words
The reamer accordng to claim 4 in which said trough means includes: a trough support; and, a plurality of elongated trough sections longitudinally supported in end to end relation by said trough support.
Claim 5
Dependent Claim
52 words
The reamer according to claim 1 in which said elevating means includes: a source of fluid pressure; and, a vertically disposed master cylinder having the depending end of its piston rod secured to said platform and having the depending end of its cylinder body secured in supporting relation to said trough means.
Claim 6
Dependent Claim
66 words
The reamer according to claim 3 and further including: at least one secondary vertically disposed elevating cylinder having the depending end of its piston rod secured to said platform and having the depending end of its cylinder body secured to one end portion of said trough support for raising and lowering said one end portion of said trough support with respect to its opposite end portion.
Claim 7
Dependent Claim
32 words
The reamer according to claim 5 in which said source of fluid pressure includes: a reservoir; and, pump means maintaining a supply of fluid under greater than atmospheric pressure in said reservoir.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |