Patent US3913753A successfully refreshed from Google Patents.
US3913753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill pipe handling and storage device
Assignee: Driltech Inc
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Filing: 1974-08-29
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Granted: 1975-10-21
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Expires: 1994-08-29
Abstract
Abstract Apparatus for drilling wells including a magazine swingably mounted on a mast for moving a section of drill pipe into alignment with a string of drill pipes having a cutter at the lower end. The magazine contains a plurality of drill pipe sections and includes mechanism for maintaining the drill pipes in the magazine as well as mechanism for rotating the magazine so that a drill pipe section can be removed from or added to the magazine.
Inventors
- 👤 Richard H Swartz
- 👤 Richard J Pearce
- 👤 James M Bowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:19
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/14; E21B19/146
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
288 words
Apparatus for handling and storing a plurality of drill pipe sections for use with a well drilling rig having an upright mast and a rotary driving member mounted for movement along said mast, said apparatus comprising a hanger shaft swingably mounted on said mast, a pair of spaced support arms carried by said hanger shaft and extending outwardly therefrom, a magazine having a shaft rotatably mounted on said support arms, an index plate fixed to said magazine shaft, collar means rotatably mounted on said magazine shaft adjacent to said index plate, means for selectively connecting said collar means to said index plate, means for partially rotating said collar means to cause partial rotation of said magazine shaft when said connecting means engages said index plate, a seat plate fixed to the lower portion of said magazine shaft, said seat plate having a plurality of non-circular openings, each of said openings being of a configuration to received a non-circular end of a drill pipe section, latch means mounted on said magazine shaft in spaced relationship to said index plate, said latch means having a plurality of C-shaped openings, each of said C-shaped openings having a mouth communicating with the periphery of said latch means, a latch member rotatably associated with each C-shaped opening of the latch means, each latch member having a U-shaped opening which can be selectively aligned with the mouth of a C-shaped opening, said U-shaped opening being of a size to receive the upper portion of a drill pipe section, and means for swinging sais hanger shaft about a generally vertical axis to move said magazine from a retracted position to an operative position, whereby said magazine can be selectively aligned with the rotary driving member.
Claim 2
Dependent Claim
288 words
Apparatus for handling and storing a plurality of drill pipe sections for use with a well drilling rig having an upright mast and a rotary driving member mounted for movement along said mast, said apparatus comprising a hanger shaft swingably mounted on said mast, a pair of spaced support arms carried by said hanger shaft and extending outwardly therefrom, a magazine having a shaft rotatably mounted on said support arms, an index plate fixed to said magazine shaft, collar means rotatably mounted on said magazine shaft adjacent to said index plate, means for selectively connecting said collar means to said index plate, means for partially rotating said collar means to cause partial rotation of said magazine shaft when said connecting means engages said index plate, a seat plate fixed to the lower portion of said magazine shaft, said seat plate having a plurality of non-circular openings, each of said openings being of a configuration to received a non-circular end of a drill pipe section, latch means mounted on said magazine shaft in spaced relationship to said index plate, said latch means having a plurality of C-shaped openings, each of said C-shaped openings having a mouth communicating with the periphery of said latch means, a latch member rotatably associated with each C-shaped opening of the latch means, each latch member having a U-shaped opening which can be selectively aligned with the mouth of a C-shaped opening, said U-shaped opening being of a size to receive the upper portion of a drill pipe section, and means for swinging sais hanger shaft about a generally vertical axis to move said magazine from a retracted position to an operative position, whereby said magazine can be selectively aligned with the rotary driving member.
Claim 3
Dependent Claim
214 words
A magazine for handling and storing at least one elongated drill pipe section having at least one first flattened portion at the lower end and at least one second flattened portion spaced from said first flattened portion and being out of axial alignment therewith, said magazine comprising a shaft, a seat plate mounted on said shaft, said seat plate having an opening complementary to the lower end of said drill pipe section, latch means mounted on said shaft and spaced from said seat plate a distance substantially corresponding to the distance between the first and second flattened portions of the drill pipe section, said latch means having a generally C-shaped opening communicating with the periphery thereof, a latch member rotatably associated with said C-shaped opening of said latch means, said latch member having a normally open slot for complementarily receiving the second flattened portion of said drill pipe section, whereby the second flattened portion of a drill pipe section is introduced into the slot of said latch member after wHich the drill pipe section and the latch member are rotated to close the latch member slot and align the first flattened portion of the drill pipe section with the opening of the seat plate so that the drill pipe section may be received therein.
Claim 4
Dependent Claim
214 words
A magazine for handling and storing at least one elongated drill pipe section having at least one first flattened portion at the lower end and at least one second flattened portion spaced from said first flattened portion and being out of axial alignment therewith, said magazine comprising a shaft, a seat plate mounted on said shaft, said seat plate having an opening complementary to the lower end of said drill pipe section, latch means mounted on said shaft and spaced from said seat plate a distance substantially corresponding to the distance between the first and second flattened portions of the drill pipe section, said latch means having a generally C-shaped opening communicating with the periphery thereof, a latch member rotatably associated with said C-shaped opening of said latch means, said latch member having a normally open slot for complementarily receiving the second flattened portion of said drill pipe section, whereby the second flattened portion of a drill pipe section is introduced into the slot of said latch member after wHich the drill pipe section and the latch member are rotated to close the latch member slot and align the first flattened portion of the drill pipe section with the opening of the seat plate so that the drill pipe section may be received therein.
Claim 5
Dependent Claim
64 words
The structure of claim 2 including an index plate fixed to said shaft, collar means rotatably mounted on said shaft adjacent to said index plate, means for selectively connecting said collar means to said index plate, and means for moving said collar means to cause partial rotation of said magazine shaft when said collar means and said index plate are connected to each other.
Claim 6
Dependent Claim
40 words
The structure of claim 3 in which said index plate includes a plurality of spaced openings, and said means for connecting said collar means to said index plate includes pin means selectively engageable with an opening of said index plate.
Claim 7
Dependent Claim
37 words
The structure of claim 2 including a retainer located at the upper end of the said shaft, said retainer having a notch of a size to permit the drill pipe section to be removed from said magazine.
Claim 8
Dependent Claim
20 words
The structure of claim 2 including stop means to limit rotation of the latch member in at least one direction.
Claim 9
Dependent Claim
20 words
The sturcture of claim 6 including resilient means normally urging the slot of said latch member to an open position.
Claim 10
Dependent Claim
33 words
The structure of claim 2 in which said latch means includes a latch plate, and said latch member having flanges overlying and underlying said latch plate to permit rotation of said latch member.
Claim 11
Dependent Claim
67 words
The structure of claim 2 in which said latch means includes a pair of latch plates having vertically aligned C-shaped openings, a bushing plate mounted between said latch plates, said bushing plate having a C-shaped opening which is larger than the C-shaped openings of said latch plates and is generally concentric therewith, and said latch member is rotatably mounted within the C-shaped opening of said bushing plate.
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) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |