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US3927451A
Expired / Lapsed
US
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Methods of fitting fluid pressure operated devices into pipelines
Assignee: Elster Metering Holdings Ltd
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Filing: 1974-06-24
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Granted: 1975-12-23
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Expires: 1994-06-24
Abstract
Abstract The method of fitting a fluid pressure operated device in a pipeline comprises the steps of removing a straight section of the pipeline of length less than the fluid pressure device to afford spaced coaxial pipeline ends, mounting union couplings on the pipeline ends, mounting annular sealing means inwardly of the couplings, substantially tilting the axis of the device relatively to the pipeline and passing an inlet or outlet connection of the device on to the pipeline to an extent to enable the device connections to be brought into a position coaxial with the pipeline, moving the device into the coaxial position with the device connections extending over the respective ends of the pipeline, and, tightening the union couplings on to the inlet and outlet connections of the device thereby to clamp the sealing means between each coupling and the device to provide a seal between each device connection and the pipeline.
Inventors
- 👤 Ivor Thomas Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:29
CPC Classifications
F; F16; F16L; F16L19/00; F16L19/06; F16L19/062; F16L55/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49428; Y10T29/49826; Y10T403/00; Y10T403/50; Y10T403/55
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
231 words
The method of fitting a fluid pressure operated device into a pipeline the device having coaxial inlet and outlet connectIons of substantially larger internal diameter than the external diameter of the pipeline, which comprises the steps of removing a straight section of the pipeline of length less than the overall length of the fluid pressure device to afford spaced coaxial pipeline ends between which the device is to be fitted; mounting union couplings on the respective ends of the pipeline; mounting annular sealing means on each end of the pipeline inwardly of the associated union coupling; tilting the axis of the device connections to a substantial extent relatively to the pipeline axis, passing one of the inlet or outlet connections of the device on to an end of the pipeline to an extent as to enable the device connections to be brought into a position coaxial with the pipeline; moving the device into said coaxial position; moving the device coaxially with respect to the pipeline to a position in which both inlet and outlet connections of the device extend over the respective ends of the pipeline; and tightening the annular couplings on to the inlet and outlet connections respectively of the device, thereby to clamp the sealing means between each coupling and the device so as to afford a seal between each connection of the device and the associated pipeline end.
Claim 2
Independent Claim
231 words
The method of fitting a fluid pressure operated device into a pipeline the device having coaxial inlet and outlet connectIons of substantially larger internal diameter than the external diameter of the pipeline, which comprises the steps of removing a straight section of the pipeline of length less than the overall length of the fluid pressure device to afford spaced coaxial pipeline ends between which the device is to be fitted; mounting union couplings on the respective ends of the pipeline; mounting annular sealing means on each end of the pipeline inwardly of the associated union coupling; tilting the axis of the device connections to a substantial extent relatively to the pipeline axis, passing one of the inlet or outlet connections of the device on to an end of the pipeline to an extent as to enable the device connections to be brought into a position coaxial with the pipeline; moving the device into said coaxial position; moving the device coaxially with respect to the pipeline to a position in which both inlet and outlet connections of the device extend over the respective ends of the pipeline; and tightening the annular couplings on to the inlet and outlet connections respectively of the device, thereby to clamp the sealing means between each coupling and the device so as to afford a seal between each connection of the device and the associated pipeline end.
Claim 3
Dependent Claim
24 words
The method claimed in claim 1 which includes clamping to the pipeline the union couplings each at the side thereof remote from the device.
Claim 4
Dependent Claim
27 words
The method claimed in claim 1 which includes employing annular sealing means of different internal diameter to enable fitting of the device to different sizes of pipeline.
References Cited (Backward Citations)
US3756628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |