Patent US4008058A successfully refreshed from Google Patents.
US4008058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for regenerating a drying agent in driers for gases or air under positive pressure
Assignee: Individual
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Filing: 1976-03-17
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Granted: 1977-02-15
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Expires: 1996-03-17
Abstract
Abstract Apparatus comprising two drying towers, each including a drying agent for drying compressed gas or compressed air that is caused to flow through the drying towers alternately. A minor quantity of the dried gas or air expelled from one of the towers is fed back into the other tower for drying the drying agent therein. The feedback element in each tower is an elongate hollow cartridge, through which said minor quantity of dried air flows and thereafter is conveyed to outside the drying agent, subsequently penetrating the latter and being discharged at the end opposite to that at which it has been introduced. A pair of perforated plates may be located in each tower for enclosing the drying agent between them to create a homogenous flow of the compressed gas or compressed air to be dried. Said cartridges may to advantage be located approximately centrally in the respective towers.
Inventors
- 👤 Karl Wischer
- 👤 Kjell Eric Ericsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:56
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331; B; B01; B01D; B01D53/00; B01D53/26; B01D53/261
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
238 words
Apparatus for regenerating a drying agent in driers for gas under positive pressure, said apparatus comprising a. two drying towers, each tower having upper and lower ends, respectively, b. a drying agent disposed in each of said drying towers, c. means for interconnecting said drying towers by their respective upper ends and lower ends, d. valve means in said interconnecting means, e. means for supplying to one of said interconnecting means compressed gas to be dried, f. means for expelling from the other of said interconnecting means dried compressed gas, g. hollow cartridge means extending diametrically through each of said drying towers, said cartridge having choke means at the output thereof, h. heating means disposed in each of said cartridge means, i. feedback means from the interconnectng means for expelling dried compressed gas from each of said drying towers to the respective cartridge means, and j. valve means in said feedback means, whereby moist, compressed gas introduced at one end of a first one of said drying towers is expelled at the other end of said drying tower and a lesser portion of this dried gas is fed back as regenerating gas to the cartridge means of the second drying tower and heated therein and is discharged from said cartridge means through said choke means for flowing through the entire drying agent of the second drying tower for drying said drying agent of the second drying tower. pg,12
Claim 2
Dependent Claim
238 words
Apparatus for regenerating a drying agent in driers for gas under positive pressure, said apparatus comprising a. two drying towers, each tower having upper and lower ends, respectively, b. a drying agent disposed in each of said drying towers, c. means for interconnecting said drying towers by their respective upper ends and lower ends, d. valve means in said interconnecting means, e. means for supplying to one of said interconnecting means compressed gas to be dried, f. means for expelling from the other of said interconnecting means dried compressed gas, g. hollow cartridge means extending diametrically through each of said drying towers, said cartridge having choke means at the output thereof, h. heating means disposed in each of said cartridge means, i. feedback means from the interconnectng means for expelling dried compressed gas from each of said drying towers to the respective cartridge means, and j. valve means in said feedback means, whereby moist, compressed gas introduced at one end of a first one of said drying towers is expelled at the other end of said drying tower and a lesser portion of this dried gas is fed back as regenerating gas to the cartridge means of the second drying tower and heated therein and is discharged from said cartridge means through said choke means for flowing through the entire drying agent of the second drying tower for drying said drying agent of the second drying tower. pg,12
Claim 3
Dependent Claim
22 words
Apparatus in accordance with claim 1, wherein said choke means in each of said cartridges controls the flow of compressed gas therefrom.
Claim 4
Dependent Claim
64 words
Apparatus in accordance with claim 2, wherein said choke means is located at the opposite end of said heating cartridge as compared to the input end for the regenerating gas, said choke means comprising a tapered pin adapted to be threaded into and threaded out of, respectively, an aperture in a blocking disc for controlling the amount of regenerating gas flowing through said aperture.
Claim 5
Dependent Claim
53 words
Apparatus in accordance with claim 1, wherein said regenerating gas is discharged from said cartridge means through said choke means at one end of the drying tower for flowing through the drying agent in the drying tower to the other end of the drying tower prior to being expelled from the drying tower.
Claim 6
Dependent Claim
20 words
Apparatus in accordance with claim 1, wherein said cartridge means is disposed approximately centrally in the bed of drying agent.
Claim 7
Dependent Claim
56 words
Apparatus in accordance with claim 1, wherein perforated, substantially horizontal plates are disposed immediately below the discharge openings of the cartridge means at one end of the drying towers, and perforated, substantially horizontal plates are disposed at the other ends of the drying towers, with the drying agent disposed between said horizontal plates in each tower.
Claim 8
Dependent Claim
26 words
Apparatus in accordance with claim 1, wherein the regenerating gas is heated under positive pressure in said cartridge means and is controlled by said choke means.
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) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |