US4919695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for drying gas
Assignee: Individual
•
Filing: 1989-04-24
•
Granted: 1990-04-24
•
Expires: 2009-04-24
Abstract
Abstract Apparatus for drying gas comprising two adsorbers mounted in parallel by inlet conduits and exit conduits between an inlet and an exit. A jet pump having a pump inlet, an aspirator and a delivery conduit with a heater is mounted with conduits and non-return check valves for placing only one of the exit conduits selectively in communications with the pump delivery conduit. Non-return check valves are provided for placing the pump inlet in communication only with the other of the exit conduits and a valve is mounted on the aspirator for regulating aspiration of ambient air.
Inventors
- 👤 Pierre Trepaud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:58
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/26; B01D53/261; B01D2259/00; B01D2259/40; B01D2259/402
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
83 words
Apparatus for drying gas comprising an entry and an exit, two adsorbers mounted in parallel between the entrance and the exit by inlet and exit conduits; a jet pump having an inlet, suction means and delivery means; heating means mounted on the delivery means; means which put selectively only one of the exit conduits in communication with the delivery means; means which put the inlet in communication only with the other of the exit conduits; and a valve mounted on the suction means.
Claim 2
Dependent Claim
83 words
Apparatus for drying gas comprising an entry and an exit, two adsorbers mounted in parallel between the entrance and the exit by inlet and exit conduits; a jet pump having an inlet, suction means and delivery means; heating means mounted on the delivery means; means which put selectively only one of the exit conduits in communication with the delivery means; means which put the inlet in communication only with the other of the exit conduits; and a valve mounted on the suction means.
Claim 3
Dependent Claim
46 words
Apparatus according to claim 1 wherein the means for putting the inlet in communication with only one of the exit conduits comprises two non-return valves mounted on the exit conduits so as to prevent all passage in the direction from the inlet towards the exit conduit.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 2 wherein the two said means for putting the inlet in communication comprise, as means for obstruction of flow, only non-return valves.
Claim 5
Dependent Claim
62 words
Apparatus according to claim 1 wherein the means for putting only one of the exit conduits selectively in communication with the delivery means comprises two non-return valves mounted on the conduits for putting the delivery means in communication with the exit conduits in such a way as to prevent all passage in the direction from the exit conduits towards the delivery means.
Claim 6
Dependent Claim
26 words
Apparatus according to claim 4, wherein the two said means for putting the inlet in communication comprise, as means for obstruction of flow, only non-return valves.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-23 | 1993-10-23 | 1994-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-23 | 1997-10-23 | 1998-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-23 | 2001-10-23 | 2002-04-24 | $7700.00 | Window Closed / Lapsed |