US4295667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pipe switch
Assignee: Vacmetal Gesellschaft fuer Vakuum Metallurgie mbH
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Filing: 1979-08-02
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Granted: 1981-10-20
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Expires: 1999-08-02
Abstract
Abstract A plurality of distributing pipes arranged in a circular pattern around a central pipe are selectively interconnected with the central pipe by a rotary pipe switch which includes a pipe elbow having a rotary joint at one end thereof connecting the elbow to the central pipe to enable rotary motion of the elbow relative to the central pipe and an axial compensator at the other end of the elbow with a connector attached to the axial compensator for effecting connection and disconnection of the other end of the elbow with each of the plurality of distributing pipes. A driving device is provided to effect compression and expansion of the axial compensator in order to effect selective connection and disconnection of the connector with the various distributing pipes.
Inventors
- 👤 Gernot Zahs
- 👤 Hans-Jurgen Wahle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/52; B65G53/56; F; F16; F16L; F16L27/00; F16L27/08; F16L27/0804; F16L27/0837; F16L27/0861
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
206 words
A rotary pipe switch for selectively interconnecting a central pipe to a selected one of a plurality of distributing pipes arranged in a circular pattern around said central pipe comprising a pipe elbow having a first end and a second end with a curved portion therebetween, rotary joint means at said first end for connecting said pipe elbow to a central pipe and for enabling rotary motion of said pipe elbow relative to said central pipe, axial compensator means located intermediate said curved portion and said second end of said pipe elbow, connector means attached at said second end of said pipe elbow for enabling connection and disconnection of said second end of said elbow to and from a distributing pipe, and at least two adjusting devices attached to said connector means, said adjusting devices and said axial compensator means being structured to enable axial movement of said connector means toward and away from each of a plurality of distributing pipes to enable said connector means to be attached with and detached from said distributing pipes, said rotary pipe switch also including means at said second end for driving said pipe elbow to enable selective attachment and detachment of said central pipe and said distributing pipes.
Claim 2
Dependent Claim
206 words
A rotary pipe switch for selectively interconnecting a central pipe to a selected one of a plurality of distributing pipes arranged in a circular pattern around said central pipe comprising a pipe elbow having a first end and a second end with a curved portion therebetween, rotary joint means at said first end for connecting said pipe elbow to a central pipe and for enabling rotary motion of said pipe elbow relative to said central pipe, axial compensator means located intermediate said curved portion and said second end of said pipe elbow, connector means attached at said second end of said pipe elbow for enabling connection and disconnection of said second end of said elbow to and from a distributing pipe, and at least two adjusting devices attached to said connector means, said adjusting devices and said axial compensator means being structured to enable axial movement of said connector means toward and away from each of a plurality of distributing pipes to enable said connector means to be attached with and detached from said distributing pipes, said rotary pipe switch also including means at said second end for driving said pipe elbow to enable selective attachment and detachment of said central pipe and said distributing pipes.
Claim 3
Dependent Claim
30 words
A rotary pipe switch according to claim 1 wherein said adjusting devices are supported on both sides of said axial compensator means on said second end of said pipe elbow.
Claim 4
Dependent Claim
16 words
A rotary pipe switch according to claim 2 wherein said adjusting devices are thrust piston drives.
Claim 5
Dependent Claim
17 words
A rotary pipe switch according to claim 1 wherein said adjusting devices consist of electrical lifting devices.
Claim 6
Dependent Claim
66 words
A rotary pipe switch according to claim 1 wherein said connector means comprise a flange member attached to said axial compensator means and wherein a plurality of base members are arranged at said second end of said pipe elbow and a plurality of support members are arranged at the level of said flange, said adjusting devices being arranged between said base members and said support members.
Claim 7
Dependent Claim
17 words
A rotary pipe switch according to claim 1 wherein said driving means comprise a thrust piston drive.
Claim 8
Dependent Claim
16 words
A rotary pipe switch according to claim 1 wherein said driving means comprise a gear motor.
Claim 9
Dependent Claim
55 words
A rotary pipe switch according to claim 1 wherein said connector means comprise a flange member located to be between said axial compensator means and a distributing pipe when said pipe elbow is connected with said distributing pipe, said rotary pipe switch further including clamping means for securing said flange member with a distributing pipe.
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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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |