US3552265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for facing thermoplastic pipe
Assignee: Phillips Petroleum Co
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Filing: 1968-11-01
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Granted: 1971-01-05
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Expires: 1988-11-01
Abstract
Abstract An apparatus and method for facing the ends of a pair of thermoplastic pipe joints preparatory to joining them by a heat fusion process. The apparatus includes a rotatable disc assembly provided with planing means. As a joint of pipe is fed toward the disc assembly, the planing means conditions its leading edge forming a smooth, squared end.
Inventors
- 👤 Calvin M Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:39
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/84; B29C66/865; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C65/2092; B29C65/78; B29C65/7802; B29C65/7841; B29C66/01; B29C66/02; B29C66/022; B29C66/0224; B29C66/02241; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/81; B29C66/816; B29C66/8163; B29C66/861; B29C2793/00; B29C2793/0081; B29C65/2053; B29C65/2084; B29C66/02245; B29L; B29L2023/00; B29L2023/22; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1066; Y10T409/00; Y10T409/30; Y10T409/304536; Y10T409/306664; Y10T409/307448; Y10T409/307784
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
236 words
An apparatus for facing ends of a pair of joints of thermoplastic pipe, comprising: a frame; means on said frame for axially aligning and spacing end portions of said joints one from another; and rotatable disc means mounted on the frame and being movable between an operating position at which said disc means if disposed between said end portions of the joints and an inoperative position at which said disc means is laterally moved therefrom, said disc means in the operating position presenting a first planing means confronting one of said end portions and a second planing means confronting the other of said end portions with said first and second planing means mounted as a unit on a support, each planing means having a radially extending blade presenting a cutting edge protruding axially toward a separAte end portion of the joints and being rotatable coaxially with the end portions of the joints, means for biasing said discs toward one joint end portion, said discs being movable along the axis of the joints, by movement of one of the joints along its axis into forcible engagement with one of the discs, between a first position at which one of the joints is in contact with one of the discs and a second position at which both joints are in contact with their respective discs for planing a smooth perpendicular surface on the end of each pipe joint.
Claim 2
Independent Claim
236 words
An apparatus for facing ends of a pair of joints of thermoplastic pipe, comprising: a frame; means on said frame for axially aligning and spacing end portions of said joints one from another; and rotatable disc means mounted on the frame and being movable between an operating position at which said disc means if disposed between said end portions of the joints and an inoperative position at which said disc means is laterally moved therefrom, said disc means in the operating position presenting a first planing means confronting one of said end portions and a second planing means confronting the other of said end portions with said first and second planing means mounted as a unit on a support, each planing means having a radially extending blade presenting a cutting edge protruding axially toward a separAte end portion of the joints and being rotatable coaxially with the end portions of the joints, means for biasing said discs toward one joint end portion, said discs being movable along the axis of the joints, by movement of one of the joints along its axis into forcible engagement with one of the discs, between a first position at which one of the joints is in contact with one of the discs and a second position at which both joints are in contact with their respective discs for planing a smooth perpendicular surface on the end of each pipe joint.
References Cited (Backward Citations)
US98696A
Cited
US3400030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |