US3633663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling roll
Assignee: Boeing North American Inc
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Filing: 1970-06-08
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Granted: 1972-01-11
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Expires: 1990-06-08
Abstract
Abstract A cooling roll for a printing press having a hollow cylindrical roll body and a series of axially spaced baffle members mounted within said body for thoroughly mixing cooling fluid as it passes through the roll body and for directing the flowing fluid against the cylinder walls of the roll body. Each baffle is cup shaped and is disposed within the roll body with the open end of the cup directed downstream of the fluid flow. The end portion and tapered side portions of each cup-shaped baffle are formed with a plurality of flutes which facilitate mixing and directing of the fluid.
Inventors
- 👤 Leonard I Tafel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:56
CPC Classifications
F; F28; F28F; F28F5/00; F28F5/02; B; B41; B41F; B41F23/00; B41F23/04; B41F23/0476; B41F23/0479; F28F13/00; F28F13/06; Y; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/139; Y10S165/156; Y10S165/159
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
173 words
A heat exchange roll for treating webs of sheet material comprising a hollow cylindrical roll body having an outer periphery, an inner surface and closed ends, means at the ends thereof for rotatably supporting said roll body, means at one end of said body defining a fluid inlet passageway, means at the other end of said body defining a fluid outlet passageway, a single series of axially spaced, substantially identical cupshaped baffle members each having an end portion and outwardly tapered side portions mounted within the roll body, the outer edge of each baffle tapered side portion engaging said roll body inner surface, each said baffle side portion being formed with a plurality of circumferentially spaced flutes which define passageways for fluid flow between said baffle side portions and said inner body surface, said baffles being disposed with the open end of said cup directed downstream of the fluid so as to mix said fluid and repeatedly direct it against said inner surface as it passes through the length of said roll body.
Claim 2
Dependent Claim
173 words
A heat exchange roll for treating webs of sheet material comprising a hollow cylindrical roll body having an outer periphery, an inner surface and closed ends, means at the ends thereof for rotatably supporting said roll body, means at one end of said body defining a fluid inlet passageway, means at the other end of said body defining a fluid outlet passageway, a single series of axially spaced, substantially identical cupshaped baffle members each having an end portion and outwardly tapered side portions mounted within the roll body, the outer edge of each baffle tapered side portion engaging said roll body inner surface, each said baffle side portion being formed with a plurality of circumferentially spaced flutes which define passageways for fluid flow between said baffle side portions and said inner body surface, said baffles being disposed with the open end of said cup directed downstream of the fluid so as to mix said fluid and repeatedly direct it against said inner surface as it passes through the length of said roll body.
Claim 3
Dependent Claim
160 words
A heat exchange roll for treating webs of sheet material comprising a hollow cylindrical roll body having an outer periphery, an inner surface and closed ends, means at the ends thereof for rotatably supporting said roll body, means at one end of said body defining a fluid inlet passageway, means at the other end of said body defining a fluid outlet passageway, a single series of axially spaced, substantially identical cup-shaped baffle members each having an end portion and outwardly tapered side portions mounted within the roll body, said end portion of each baffle being formed with a plurality of radially extending flutes and said side portion of each baffle being formed with a plurality of outwardly tapered longitudinal flutes, said baffles being disposed with the open end of said cup directed downstream of the fluid so as to mix said fluid and repeatedly direct it against said inner surface as it passes through the length of said roll body.
Claim 4
Dependent Claim
160 words
A heat exchange roll for treating webs of sheet material comprising a hollow cylindrical roll body having an outer periphery, an inner surface and closed ends, means at the ends thereof for rotatably supporting said roll body, means at one end of said body defining a fluid inlet passageway, means at the other end of said body defining a fluid outlet passageway, a single series of axially spaced, substantially identical cup-shaped baffle members each having an end portion and outwardly tapered side portions mounted within the roll body, said end portion of each baffle being formed with a plurality of radially extending flutes and said side portion of each baffle being formed with a plurality of outwardly tapered longitudinal flutes, said baffles being disposed with the open end of said cup directed downstream of the fluid so as to mix said fluid and repeatedly direct it against said inner surface as it passes through the length of said roll body.
Claim 5
Dependent Claim
34 words
The heat exchange roll of claim 2 in which the end flutes of each baffle extend without interruption into said longitudinal side flutes to define unintErrupted passageways about the outer surface of said baffle.
Claim 6
Dependent Claim
25 words
The heat exchange roll of claim 3 in which the end flutes define an axially disposed internally recessed area in the end of each baffle.
Claim 7
Dependent Claim
40 words
The heat exchange roll of claim 1 including a rod extending axially the length of said roll body upon which said baffles are disposed, and means securing the baffles to said rod for maintaining said baffles in axially spaced relation.
Claim 8
Dependent Claim
50 words
The heat exchange roll of claim 5 in which said baffles each have a two-part construction, each said baffle part being a sector of said cup and being disposed on said tie rod in partially overlapping relation with the tie rod passing through an axially disposed aperture in each part.
Claim 9
Dependent Claim
75 words
The heat exchange roll of claim 1 in which the end portion of each baffle is formed with a plurality of radially extending flutes, said end flutes extending without interruption into said side flutes to define uninterrupted passages about the outer surface of said baffle, a rod extending axially the length of said roll body upon which said baffles are disposed and means securing said baffles to said rod for maintaining their axially spaced relation.
References Cited (Backward Citations)
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Cited
FR437214A
Cited
US1691979A
Cited
GB345279A
Cited
US2068779A
Cited
US2262530A
Cited
US3058731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |