US3690472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe handling apparatus
Assignee: Midwestern Specialties Ltd
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Filing: 1971-02-26
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Granted: 1972-09-12
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Expires: 1991-02-26
Abstract
Abstract An apparatus for moving relatively large diameter sections of coated pipe through a treating stage such as a heating chamber in a manner wherein the coated portions of the pipe sections are not engaged, thus protecting the coating during the treating operation. The coated pipe is initially received by an elevator apparatus which moves the pipe to an intermediate station for transfer to a conveyor apparatus which moves the coated pipe through the treatment area, such as an oven or the like for discharge therefrom subsequent to the treating or heating operation. The pipe is supported in a manner precluding damage to the beveled pipe ends and precluding engagement with the coated portions thus greatly facilitating the coating of large diameter pipe.
Inventors
- 👤 Earnest C Poore
- 👤 John A Goforth Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:02
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/063; B65G47/00; B65G47/52; B65G47/66; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
121 words
A pipe handling apparatus for pipe having beveled ends and a coated outer periphery and comprising an initial pipe receiving apparatus, a transfer apparatus, and a conveyor apparatus, said pipe receiving apparatus being provided with pipe supporting and kicker means engaging the opposite ends of the pipe only in the manner precluding engagement of the beveled ends and coated outer periphery, said transfer apparatus being provided with pipe receiving means engaging the opposite ends of the pipe only in a manner precluding engagement of the beveled ends and coated outer periphery, said conveyor apparatus being provided with pipe supporting beds engaging the opposite ends of the pipe only in a manner precluding engagement of the beveled ends and coated outer periphery.
Claim 2
Dependent Claim
121 words
A pipe handling apparatus for pipe having beveled ends and a coated outer periphery and comprising an initial pipe receiving apparatus, a transfer apparatus, and a conveyor apparatus, said pipe receiving apparatus being provided with pipe supporting and kicker means engaging the opposite ends of the pipe only in the manner precluding engagement of the beveled ends and coated outer periphery, said transfer apparatus being provided with pipe receiving means engaging the opposite ends of the pipe only in a manner precluding engagement of the beveled ends and coated outer periphery, said conveyor apparatus being provided with pipe supporting beds engaging the opposite ends of the pipe only in a manner precluding engagement of the beveled ends and coated outer periphery.
Claim 3
Dependent Claim
66 words
A pipe handling apparatus for pipe as set forth in claim 1 wherein the pipe receiving apparatus comprises reciprocal ram means, said pipe supporting and kicker means being pivotally secured to the ram means and vertical reciprocal therewith, and means carried by the ram means and engagable with the pipe supporting and kicker means for selectively pivoting thereof to direct the pipe to the transfer apparatus.
Claim 4
Dependent Claim
73 words
A pipe handling apparatus for pipe as set forth in claim 1 wherein the pipe receiving apparatus comprises a pair of spaced support structures, cross beam means extending between said support structure, said pipe supporting and kicker means pivotally secured to said support structures, hydraulic piston means carried by said support structures and engagable with said pipe supporting and kicker means for selectively pivoting thereof to discharge the pipe to the transfer apparatus.
Claim 5
Dependent Claim
82 words
A pipe handling apparatus for pipe as set forth in claim 1 wherein the pipe receiving apparatus comprises a pair of spaced hydraulic ram support structures, cross beam means extending between said ram support structures, said pipe supporting and kicker means being pivotally secured to each of said ram support structures, and hydraulic piston means provided on each ram support structure and engagable with the pipe supporting and kicker means for selectively pivoting thereof to discharge the pipe onto the transfer apparatus.
Claim 6
Dependent Claim
83 words
A pipe handling apparatus for pipe as set forth in claim 4 wherein the pipe supporting and kicker means comprises an independent pipe supporting plate pivotally secured to each ram support structure for receiving and supporting the opposite ends of the pipe thereon, each of said plates being disposed at an angle with respect to the longitudinal axis of the pipe support thereon whereby the plates engage only the juncture between the pipe end bevel and the coated outer periphery of the pipe.
Claim 7
Dependent Claim
33 words
A pipe handling apparatus for pipe as set forth in claim 5 wherein each pipe supporting plate is substantially wide angle V-shaped in cross-sectional configuration for facilitating receiving and Discharging of the pipe.
Claim 8
Dependent Claim
73 words
A pipe handling apparatus for pipe as set forth in claim 1 wherein the transfer apparatus is disposed in the proximity of the initial pipe receiving apparatus for receiving the pipe therefrom and comprises support structure means, said pipe receiving means thereof is carried by the support structure means and is disposed in substantial alignment with the pipe supporting and kicker means of the initial pipe receiving apparatus for receiving the pipe therefrom.
Claim 9
Dependent Claim
77 words
A pipe handling apparatus for pipe as set forth in claim 7 wherein the pipe receiving means comprises stationary plate means carried by the support structure means, and movable plate means pivotally secured to the support structure for cooperation with the stationary plate means for retaining the pipe on the transfer apparatus in one position of the movable plate means and for releasing the pipe from the transfer apparatus in another position of the movable plate means.
Claim 10
Dependent Claim
51 words
A pipe handling apparatus for pipe as set forth in claim 8 wherein both the stationary plate means and movable plate means are disposed at an angle with respect to the longitudinal axis of the pipe whereby only the juncture between the beveled pipe end and coated portion is engaged thereby.
Claim 11
Dependent Claim
110 words
A pipe handling apparatus for pipe as set forth in claim 1 wherein the transfer apparatus comprises a pair of spaced support frame structures, and the pipe receiving means comprises a stationary plate carried by each support frame structure, a movable plate carried by each support frame structure, arm means pivotally secured to the support frame for pivotally securing the movable plate to the respective support frame structure, each of said stationary and movable plates being disposed at an angle with respect to the longitudinal axis of the pipe whereby only the juncture between the beveled pipe end and coated portion thereof is engaged by the stationary and movable plates.
Claim 12
Dependent Claim
56 words
A pipe handling apparatus as set forth in claim 1 wherein the conveyor apparatus is disposed adjacent the transfer apparatus for receiving the pipe therefrom, and comprises endless chain means, drive means for moving the chain means, and roller means carried by the chain means for facilitating movement of the pipe along the pipe supporting beds.
Claim 13
Dependent Claim
111 words
A pipe handling apparatus as set forth in claim 1 wherein the conveyor apparatus comprises a pair of spaced support means extending in a direction substantially perpendicular to the longitudinal axis of the pipe, said pipe supporting beds comprises an independent elongated pipe supporting plate carried by each support means, an endless chain means provided on each side of each support plate and extending substantially paralle thereto, common drive means operably connected with each endless chain means for driving thereof in synchronization, and roller means carried by the endless chain means of each support plate and extending transversely across the respective support plates for facilitating the movement of the pipe therealong.
Claim 14
Dependent Claim
41 words
A pipe handling apparatus as set forth in claim 12 wherein the support plates are disposed at an angle with respect to the longitudinal axis of the pipe for engaging only the juncture between the end bevel and coated portion thereof.
Claim 15
Dependent Claim
24 words
A pipe handling apparatus as set forth in claim 13 wherein the rollers are spaced above and substantially parallel to the respective support plate.
Claim 16
Dependent Claim
82 words
A pipe handling apparatus as set forth in claim 1 wherein the transfer apparatus is interposed between the initial pipe receiving apparatus and the conveyor apparatus for transfering the pipe from the initial pipe receiving apparatus to the conveyor apparatus, and the transfer apparatus pipe receiving means and the conveyor apparatus supporting beds are in substantial alignment with the pipe supporting and kicker means of the initial pipe receiving apparatus for facilitating movement of the pipe through the entire pipe handling apparatus.
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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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |