US3792783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe handling system
Assignee: Individual
•
Filing: 1972-05-24
•
Granted: 1974-02-19
•
Expires: 1992-05-24
Abstract
Abstract A pipe handling system for delivering pipe sections to a well drilling derrick, comprising: pipe rack means; elongate conveyor means disposed alongside the rack means; feed means movable from an inoperative position to an operative position by which a section of pipe may be lifted from the rack means for transfer to the conveyor means; and means mounted on the conveyor means for advancing pipe sections received thereon to the derrick.
Inventors
- 👤 C Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:42
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/14; E21B19/15; E21B19/155; E21B19/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
199 words
A pipe handling system for delivering pipe sections to a well drilling derrick, comprising: a. pipe rack means for horizontally supporting a plurality of pipe sections in parallel relation to each other; b. elongate conveyor means disposed alongside said rack means to receive pipe sections from said rack means; c. feed means movable from a first position to a second position by which at least one of said sections is lifted from said rack means and allowed to roll onto said conveyor means, said feed means preventing other pipe sections from rolling toward said conveyor means until returned to said second position; and d. means mounted on said conveyor means for advancing the received pipe sections into the derrick; e. said conveyor means including an elongate bed frame and an elongate trough member pivotally connected at one end thereof to said bed frame to permit vertical angular movement from a substantially horizontal position to an inclined position in which said pipe sections received thereon are supported throughout their length, said bed frame being tiltable along its longitudinal axis when said receiving trough is in the horizontal position to permit transfer of pipe sections received thereon to said rack means.
Claim 2
Dependent Claim
199 words
A pipe handling system for delivering pipe sections to a well drilling derrick, comprising: a. pipe rack means for horizontally supporting a plurality of pipe sections in parallel relation to each other; b. elongate conveyor means disposed alongside said rack means to receive pipe sections from said rack means; c. feed means movable from a first position to a second position by which at least one of said sections is lifted from said rack means and allowed to roll onto said conveyor means, said feed means preventing other pipe sections from rolling toward said conveyor means until returned to said second position; and d. means mounted on said conveyor means for advancing the received pipe sections into the derrick; e. said conveyor means including an elongate bed frame and an elongate trough member pivotally connected at one end thereof to said bed frame to permit vertical angular movement from a substantially horizontal position to an inclined position in which said pipe sections received thereon are supported throughout their length, said bed frame being tiltable along its longitudinal axis when said receiving trough is in the horizontal position to permit transfer of pipe sections received thereon to said rack means.
Claim 3
Dependent Claim
28 words
A pipe handling system as set forth in claim 1 including power operated means connected to said trough member for effecting said angular movement of said trough member.
Claim 4
Dependent Claim
31 words
A pipe handling system as set forth in claim 2 including vertical guide means engageable with one end of said trough member to guide said trough member in said angular movement.
Claim 5
Dependent Claim
39 words
A pipe handling system as set forth in claim 3 including an inclined receiving trough on said derrick registrable with one end of said trough member when in said inclined position to receive pipe sections from said conveyor means.
Claim 6
Dependent Claim
41 words
A pipe handling system as set forth in claim 4 in which said trough member and said derrick receiving trough are provided with stop means to prevent misalignment of said trough member and said derrick trough means in said inclined position.
Claim 7
Dependent Claim
74 words
A pipe handling system as set forth in claim 1 including power operated means engaging said rack means for tilting said rack means about an axis parallel to said conveyor means, said power operated means comprising a vertically movable piston and cylinder assembly provided with a stop nut for locking said piston and cylinder assembly in a preselected vertical position, said assembly comprising a threaded rod by which said assembly may be manually operated.
Claim 8
Dependent Claim
65 words
A pipe handling system as set forth in claim 1 in which said means for advancing said pipe sections into said derrick comprises: an endless cable, running along the bottom of said trough member and returning underneath said trough member; a lug member attached to said cable; and drive means engaging said cable for reciprocating sliding movement of said lug member within said trough member.
Claim 9
Dependent Claim
98 words
A pipe handling system as set forth in claim 1 in which said trough member comprises stop means preventing pipe sections from rolling onto said conveyor means from said rack means, said feed means comprising a plurality of hydraulic cylinders having rods extending therefrom to which a foot member is attached, said foot member being engageable with a first of said pipe sections, on extension of said rods, to lift said first pipe section over said stop member and allowing it to roll onto said conveyor means, but preventing other pipe sections from rolling toward said coNveyor means.
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |