US3762067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Covers or hoods for paper and like conditioning machines
Assignee: Greenbank Engineering Co Ltd
•
Filing: 1971-11-10
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Granted: 1973-10-02
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Expires: 1991-11-10
Abstract
Abstract A cover or hood for machines for the continuous production of materials in web form for paper making and board making in which the machine is totally enclosed by a frame supporting panels and horizontal and vertical peripheral tubes through which steam is circulated from a steam main and exhausted from condensate mains adjacent peripheral tubes being connected by flexible pipes.
Inventors
- 👤 J Whittaker
- 👤 H Loveday
- 👤 G Dryden
- 👤 D Barbour
- 👤 W Tweedie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:37
CPC Classifications
D; D21; D21G; D21G9/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
In a hood assembly for substantially totally enclosing a machine for the continuous treatment of paper or the like in web form in a closely controlled humidity and temperature environment, the improvement comprising a plurality of interconnected structural members defining a rigid structural frame, means for supporting said frame directly on the machine, a plurality of panels mounted on said frame to cover the top and sides thereof, vertically and horizontally extending steam distribution tube sections mounted on the panels within said hood assembly with tube sections on adjacent panels being connected by flexible tubing, a main steam pipe mounted on said frame within the upper part of the hood assembly and connected to supply steam to said tube sections, and a condensate main extending along a lower side portiOn of said frame and connected to receive exhaust steam from said tube sections.
Claim 2
Dependent Claim
143 words
In a hood assembly for substantially totally enclosing a machine for the continuous treatment of paper or the like in web form in a closely controlled humidity and temperature environment, the improvement comprising a plurality of interconnected structural members defining a rigid structural frame, means for supporting said frame directly on the machine, a plurality of panels mounted on said frame to cover the top and sides thereof, vertically and horizontally extending steam distribution tube sections mounted on the panels within said hood assembly with tube sections on adjacent panels being connected by flexible tubing, a main steam pipe mounted on said frame within the upper part of the hood assembly and connected to supply steam to said tube sections, and a condensate main extending along a lower side portiOn of said frame and connected to receive exhaust steam from said tube sections.
Claim 3
Dependent Claim
46 words
In the hood assembly defined in claim 1, said frame comprising a plurality of structural roof members for extending over the top of the machine, and said means for supporting the hood assembly on the machine comprising a plurality of posts depending from said roof members.
Claim 4
Dependent Claim
19 words
In the hood assembly defined in claim 1, means providing an outer hood in covering relation to said panels.
Claim 5
Dependent Claim
31 words
In the hood assembly defined in claim 1, means for mounting side panels on the lower portion of said frame for sliding movement on the frame, for access to said machine.
References Cited (Backward Citations)
US1692498A
Cited
US2464429A
Cited
US2464119A
Cited
US3167408A
Cited
US3395458A
Cited
US3623237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |