US4253246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Installations for the treatment of strip material in a gaseous medium
Assignee: Air Industrie SA
•
Filing: 1979-07-26
•
Granted: 1981-03-03
•
Expires: 1999-07-26
Abstract
Abstract The invention relates to installations for the treatment in a gaseous medium of a strip material passing over rollers (6). Each roller (6) is driven in rotation by an endless belt (10) serving also for the embarkment of the strip, this endless belt passing over drive pulleys (15) which drive the corresponding roller (6) by coupling means (101) ensuring a "free wheel" function and a "coupler" function. The installation is useful for the heat treatment, especially the drying of a strip material.
Inventors
- 👤 Paul Marchal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:23
CPC Classifications
D; D21; D21G; D21G9/00; D21G9/0063
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
162 words
Installation for the treatment in a gaseous medium, notably for heat treatment, of a strip material comprising: (a) a plurality of treatment zones in which the strip material is supported by an aerodynamic effect; (b) a plurality of return rollers over which the strip material passes; (c) at least one endless belt driving the strip during its introduction into the installation, this endless belt being set in motion by drive means; (d) as many drive pulleys as there are return rollers, these drive pulleys having the same initial diameter as the return rollers, said endless belt passing over said drive pulleys; (e) free wheel means interposed between each drive pulley and the corresponding return roller so that each return roller can rotate faster than the corresponding drive pulley; and (f) sliding coupler means interposed between each driver pulley and its corresponding return roller, said sliding coupler means being constructed such that each return roller is progressively driven by its corresponding drive pulley.
Claim 2
Dependent Claim
162 words
Installation for the treatment in a gaseous medium, notably for heat treatment, of a strip material comprising: (a) a plurality of treatment zones in which the strip material is supported by an aerodynamic effect; (b) a plurality of return rollers over which the strip material passes; (c) at least one endless belt driving the strip during its introduction into the installation, this endless belt being set in motion by drive means; (d) as many drive pulleys as there are return rollers, these drive pulleys having the same initial diameter as the return rollers, said endless belt passing over said drive pulleys; (e) free wheel means interposed between each drive pulley and the corresponding return roller so that each return roller can rotate faster than the corresponding drive pulley; and (f) sliding coupler means interposed between each driver pulley and its corresponding return roller, said sliding coupler means being constructed such that each return roller is progressively driven by its corresponding drive pulley.
Claim 3
Dependent Claim
40 words
Installation according to claim 1, in which the sliding effect of the sliding coupler means is adjustable such that the time until starting of each return roller is dependent upon the location of the return roller concerned in the installation.
Claim 4
Dependent Claim
26 words
Installation according to claim 1 or 2, in which the coupling means are constituted by the association of a free wheel device and a coupler device.
Claim 5
Dependent Claim
27 words
Installation according to claim 3, in which the free wheel device and the coupler device are encountered successively between the drive pulley and the corresponding return roller.
Claim 6
Dependent Claim
27 words
Installation according to claim 3, in which the coupler device and the free wheel device are encountered successively between the drive pulley and the corresponding return roller.
Claim 7
Dependent Claim
25 words
Installation according to claim 1 or 2, in which the coupling means are constituted by a single device enclosing a free wheel and a coupler.
Claim 8
Dependent Claim
29 words
Installation according to claim 6, in which this single device is constructed so that certain of its parts at least are common between the free wheel and the coupler.
Claim 9
Dependent Claim
37 words
Installation according to claim 6, in which the single device is arranged so that the transmission between the drive pulley and the corresponding return roller is effected by encountering first the free wheel and then the coupler.
Claim 10
Dependent Claim
37 words
Installation according to claim 6, in which the single device is arranged so that the transmission between the drive pulley and the corresponding return roller is effected by encountering first the coupler and then the free wheel.
References Cited (Backward Citations)
US2001668A
Cited
US2812594A
Cited
US3085346A
Cited
FR1285989A
Cited
US3265267A
Cited
US3561134A
Cited
FR1598722A
Cited
US3986273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |