US4465450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated roller device
Assignee: Individual
•
Filing: 1983-04-07
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Granted: 1984-08-14
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Expires: 2003-04-07
Abstract
Abstract A film heating apparatus includes a vertical tank vertically adjustably mounted on a base supported post, a hollow vertical roller extends between and is journaled to brackets projecting from opposite ends of the tank, an electric motor driven pump mounted on the tank circulates a heat transfer liquid through and between the roller and tank through a rotary coupling mounted on the roller, the liquid in the tank being heated by an immersion electric heater which is energized in response to a temperature sensing member responsive to the liquid temperature and a second idler roller is supported between the brackets and is transversely spaced from the first roller.
Inventors
- 👤 Ira Dermansky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:20
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/02; B29C33/04; B29C33/044
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
60 words
A web treating apparatus comprising a longitudinally extending tank, a longitudinally extending hollow roller transversely spaced from and rotatably supported by said tank, a heat transfer fluid contained within said tank and roller, means for circulating said fluid through and between said tank and roller and means for heating and regulating the temperature of said fluid to a predetermined value.
Claim 2
Dependent Claim
60 words
A web treating apparatus comprising a longitudinally extending tank, a longitudinally extending hollow roller transversely spaced from and rotatably supported by said tank, a heat transfer fluid contained within said tank and roller, means for circulating said fluid through and between said tank and roller and means for heating and regulating the temperature of said fluid to a predetermined value.
Claim 3
Dependent Claim
27 words
The web treating apparatus fo claim 1 wherein said fluid circulating means comprises an electric motor driven pump connected between and communicating with said tank and roller.
Claim 4
Dependent Claim
109 words
The web treating apparatus a claim 2 wherein said circulating means includes a rotary fluid coupling located at one end of said roller and having a pair of external ports and a pair of internal ports including an axial port and an eccentric port, said eccentric port communicating with the proximate end of the interior of said roller and an axial pipe connecting the axial port with the opposite end of the interior of said roller, one of said external ports being fluid connected to one end of said tank and the other of said external ports being connected through said pump to the other end of said tank.
Claim 5
Dependent Claim
24 words
The web treating apparatus of claim 3 wherein said fluid heating means includes an electrically energized heater immersed in the fluid in said tank.
Claim 6
Dependent Claim
39 words
The web treating apparatus of claim 4 wherein said fluid heating means comprises a temperature responsive element responsive to the fluid temperature and means responsive to said temperature responsive element for controlling the energization of said electrically energized heater.
Claim 7
Dependent Claim
24 words
The web treating apparatus of claim 1 comprising means for supporting said tank and roller as a unit with their longitudinal axis extending vertically.
Claim 8
Dependent Claim
36 words
The web treating apparatus of claim 6 wherein said supporting means comprises a bottom base member, a vertical post mounted on and projecting vertically from said base member and means connecting said tank to said post.
Claim 9
Dependent Claim
18 words
The web treating apparatus of claim 7 wherein said tank and roller are vertically adjustable along said post.
Claim 10
Dependent Claim
35 words
The web treating apparatus of claim 6 including a pair of vertically spaced brackets projecting outwardly from and secured to said tank, said roller extending between and journaled at its opposite ends to said brackets.
Claim 11
Dependent Claim
30 words
The web treating apparatus of claim 9 comprising an auxilliary idler roller vertically extending between and rotatably supported by said brackets parallel to and transversely spaced from said hollow roller.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-14 | 1988-02-13 | 1988-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-14 | 1992-02-13 | 1992-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-14 | 1996-02-13 | 1996-08-14 | $7700.00 | Window Closed / Lapsed |