Patent US5241157A successfully refreshed from Google Patents.
US5241157A
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US
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Arrangement for butt-welding plastic material components
Assignee: Georg Fischer AG
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Filing: 1992-08-10
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Granted: 1993-08-31
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Expires: 2012-08-10
Abstract
Abstract An arrangement for butt-welding tubular plastic components includes two chucking devices for holding the components in coaxial positions relative to each other and a heating device for heating the ends of the components without contact. The heating device includes a heating element which can be swung between the two chucking devices. The heating element heats the ends of the components without contact by heat rays. The heating element includes a metal plate which is coated with a ceramic coating and which is electrically heatable by heating cartridges.
Inventors
- 👤 Jorg Wermelinger
- 👤 Peter Haug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:44
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5223; B29C66/52231; B29C65/00; B29C65/02; B29C65/14; B29C65/1429; B29C65/1432; B29C65/78; B29C65/7841; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/5221; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/8226; B29C66/83; B29C66/832; B29C66/8324; B29C66/90; B29C66/91; B29C66/912; B29C66/9121; B29C66/91211; B29C66/91212; B29C66/91231; B29C66/914; B29C66/9141; B29C66/91421; B29C66/91431; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0822; B29C65/1403; B29C65/1412; B29C65/18; B29C65/20; B29C65/2053; B29C65/2061; B29C65/2084; B29C65/2092; B29C65/7802; B29C65/7832; B29C66/02; B29C66/022; B29C66/0224; B29C66/02241; B29C66/71; B29C66/81; B29C66/816; B29C66/8161; B29C66/92; B29C66/924; B29C66/9261; B29C66/92651; B29C66/92653; B29K; B29K2027/00; B29K2027/06; B29K2027/12; B29K2027/16; B29K2101/00; B29K2101/12; B29L; B29L2023/00; B29L2023/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
An arrangement for butt-welding plastic material components, especially tubular components and pipes, comprising: chucking device for holding said components in coaxial positions; a heating device for heating the ends of said components without contact by means of heat rays wherein said heating device comprises: a heating element of an electrically heatable copper plate which is coated by a ceramic coating having a thickness of 0.1-0.6 mm and further wherein; a plurality of heating cartridges and at least one thermosensor are mounted in said copper plate; a support member movable between said chucking devices wherein said heating element is mounted on said support member and further wherein said support member is displaceable in an axial direction of a tubular component axis, and further wherein said heating element includes stop cams wherein said stops cams are displaceable into contact with end faces of said chucking devices.
Claim 2
Dependent Claim
144 words
An arrangement for butt-welding plastic material components, especially tubular components and pipes, comprising: chucking device for holding said components in coaxial positions; a heating device for heating the ends of said components without contact by means of heat rays wherein said heating device comprises: a heating element of an electrically heatable copper plate which is coated by a ceramic coating having a thickness of 0.1-0.6 mm and further wherein; a plurality of heating cartridges and at least one thermosensor are mounted in said copper plate; a support member movable between said chucking devices wherein said heating element is mounted on said support member and further wherein said support member is displaceable in an axial direction of a tubular component axis, and further wherein said heating element includes stop cams wherein said stops cams are displaceable into contact with end faces of said chucking devices.
Claim 3
Dependent Claim
26 words
The arrangement of claim 1 wherein said support member is displaceable in an axial direction of a tubular component axis against the pressure of a spring.
Claim 4
Dependent Claim
19 words
The arrangement of claim 1 further comprising: a thin nickel layer between said copper plate and said ceramic coating.
References Cited (Backward Citations)
DE657884C
Cited
US2859321A
Cited
US2972371A
Cited
US3013925A
Cited
US3391045A
Cited
US3694627A
Cited
US3805024A
Cited
GB1543341A
Cited
JPS5737848A
Cited
JPS5829617A
Cited
US4929293A
Cited
US4737214A
Cited
FR2599475A1
Cited
DE3712128A1
Cited
DE3717608A1
Cited
US4933036A
Cited
US4927642A
Cited
DE3741100A1
Cited
US5183524A
Cited
US5185049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-08-30 | 1997-03-01 | 1997-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-30 | 2001-03-01 | 2001-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-30 | 2005-03-01 | 2005-08-31 | $7700.00 | Window Closed / Lapsed |