Patent US3894637A successfully refreshed from Google Patents.
US3894637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for handling pipe joints coated with mastic material
Assignee: Bredero Price Inc
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Filing: 1974-01-07
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Granted: 1975-07-15
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Expires: 1994-01-07
Abstract
Abstract A method and apparatus for handling joints of pipe to move the joints to and from a coating line where a mastic type coating is applied. The pipe is automatically moved onto the line by a pair of kickers which assure that the pipe will be rolled rather than slid toward the coating line and also assure that the pipe will be properly aligned when it reaches the coating line. A pair of telescoping arms having pipe-embracing saddles disposed at their outermost ends lift the pipe from the coating line. Each saddle is constructed to apply a lifting force to a joint of pipe to avoid damage to the semi-molten mastic coating. A movable carrier adapted to handle two coated joints of pipe simultaneously receives a joint from the arms and moves it into position where a coupler, which is disposed at the end of the joint during the coating operation, is pulled from the joint. The removed coupler is swung through an arc of 180* to a return line for transfer to a clean-up station. By handling two joints simultaneously the carrier can move one joint into position for finishing of the coated ends while moving a second joint onto holding racks.
Inventors
- 👤 Francis L Bickham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:09
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/74; B65G47/82; B29; B29C; B29C31/00; B29C31/002
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
232 words
Apparatus for moving an elongated cylindrical joint of pipe from a pipe rack, said apparatus being adapted to inpart an initial movement to the pipe subsequent to which there is no contact between the pipe and the apparatus, the latter comprising: a freely rotatable contact wheel normally disposed in a raised position for contact with the pipe at a point beneath a horizontal bisector of the pipe; means pivotally mounting said wheel in a plane beneath said surface and on the side of the pipe opposite to which it is desired to move the pipe; said wheel being adapted for movement into a lowered position whereby a joint of pipe on the surface may pass over it; return means coupled with said wheel for bringing the wheel back to its raised position after the object has passed over it; power cylinder means coupled with said wheel for moving the wheel in the direction of a joint of pipe having passed over it to thereby inpart a rolling movement to the pipe; and means for precluding movement of said pivotal mounting means in the direction of rotation of said rolling pipe, whereby when the wheel contacts the pipe the latter will roll in one direction, the wheel will rotate in the opposite direction and contact between said wheel and said pipe will be broken upon cessation of movement of said power cylinder means.
Claim 2
Dependent Claim
232 words
Apparatus for moving an elongated cylindrical joint of pipe from a pipe rack, said apparatus being adapted to inpart an initial movement to the pipe subsequent to which there is no contact between the pipe and the apparatus, the latter comprising: a freely rotatable contact wheel normally disposed in a raised position for contact with the pipe at a point beneath a horizontal bisector of the pipe; means pivotally mounting said wheel in a plane beneath said surface and on the side of the pipe opposite to which it is desired to move the pipe; said wheel being adapted for movement into a lowered position whereby a joint of pipe on the surface may pass over it; return means coupled with said wheel for bringing the wheel back to its raised position after the object has passed over it; power cylinder means coupled with said wheel for moving the wheel in the direction of a joint of pipe having passed over it to thereby inpart a rolling movement to the pipe; and means for precluding movement of said pivotal mounting means in the direction of rotation of said rolling pipe, whereby when the wheel contacts the pipe the latter will roll in one direction, the wheel will rotate in the opposite direction and contact between said wheel and said pipe will be broken upon cessation of movement of said power cylinder means.
Claim 3
Dependent Claim
22 words
Apparatus as set forth in claim 1, wherein is included guide means for directing movement of said wheel by said actuator means.
Claim 4
Dependent Claim
121 words
Apparatus as set forth in claim 1, wherein said object is an elongated joint of pipe, said apparatus being adapted to move the pipe onto a conveyor for longitudinal advancement, said wheel being disposed toward one end of the pipe, and wherein is included a second freely rotatable wheel spaced an equal distance from the opposite end of the pipe as the first-mentioned wheel is from the other end; a second pivotal mounting means for mounting the second wheel; a second return means for the second wheel; and a second actuator means for the second wheel, the first-mentioned actuator means and the second sctuator means being adapted for simultaneous operation whereby to assure equal advancement of opposite ends of the pipe.
Claim 5
Dependent Claim
88 words
Apparatus as set forth in claim 1, wherein is included a reciprocable framework and guide means for directing movement of the framework along a linear path of travel wherein said pivotal mounting means comprises an arm of generally S-shaped configuration, said wheel being rotatably mounted at the uppermost end thereof; said pivotal mounting means being disposed at the midway point of said S-shaped arm; said return means comprising a counterweight disposed at the lowermost end of said S-shaped arm; and said actuator means being coupled with said framework.
References Cited (Backward Citations)
US1541118A
Cited
US3690472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |