US4171000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoking device
Assignee: Individual
•
Filing: 1977-03-23
•
Granted: 1979-10-16
•
Expires: 1997-03-23
Abstract
Abstract A smoking device for aspirating gas-containing mixtures is described which comprises a mouthpiece with at least one suction duct connected to an intermediate chamber, a pressure vessel filled with a mixture disposed next to the intermediate chamber and including an outlet valve that is closed in normal position and ends into the intermediate chamber and has to be opened to put the device into operation, and further comprising an inlet for atmospheric air into the intermediate chamber which is provided with a shut-off valve coupled to the outlet valve, wherein the shut-off valve is open in the normal position and can be brought into closing position when the outlet valve normally urged into closing position is opened, and that the intermediate chamber contains a storage substance for storing the gas-containing mixture.
Inventors
- 👤 Klaus P. Uhle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:20
CPC Classifications
A; A61; A61M; A61M13/00; A61M15/00; A61M15/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
A smoking device for aspirating a gas-containing mixture comprising a mouthpiece with at least one suction duct connected to an air-aspirating chamber, a pressure vessel filled with said mixture attached to said air-aspirating chamber and including an outlet valve being biased into closed position and connected to said air-aspirating chamber which outlet valve has to be opened to put the device into operation, an inlet for atmospheric air into said air-aspirating chamber which is provided with a shut-off valve coupled to the outlet valve, means for biasing said shut-off valve into open position and means for bringing said shut-off valve into closing position and opening said outlet valve and further comprising an intermediate chamber containing a storage substance for storing said gas-containing mixture, said intermediate chamber being disposed between said air-aspirating chamber and said mouthpiece.
Claim 2
Dependent Claim
135 words
A smoking device for aspirating a gas-containing mixture comprising a mouthpiece with at least one suction duct connected to an air-aspirating chamber, a pressure vessel filled with said mixture attached to said air-aspirating chamber and including an outlet valve being biased into closed position and connected to said air-aspirating chamber which outlet valve has to be opened to put the device into operation, an inlet for atmospheric air into said air-aspirating chamber which is provided with a shut-off valve coupled to the outlet valve, means for biasing said shut-off valve into open position and means for bringing said shut-off valve into closing position and opening said outlet valve and further comprising an intermediate chamber containing a storage substance for storing said gas-containing mixture, said intermediate chamber being disposed between said air-aspirating chamber and said mouthpiece.
Claim 3
Dependent Claim
22 words
The device of claim 1, wherein said intermediate chamber with its inlet and the pressure vessel with its valve are axially aligned.
Claim 4
Dependent Claim
35 words
The device of claim 2, wherein said mouthpiece is constructed to accommodate said intermediate chamber in gas-tight engagement with a sleeve accommodating said pressure vessel and said mouthpiece is biased away from said pressure vessel.
Claim 5
Dependent Claim
17 words
The device of claim 3, wherein a coiled spring is provided between said mouthpiece and said sleeve.
Claim 6
Dependent Claim
25 words
The device of claim 4, wherein said sleeve overlaps a portion of said mouthpiece, and in said portion at least one sealing ring is provided.
Claim 7
Dependent Claim
32 words
The device of claim 5, wherein said air-aspirating chamber is radially confined by said sleeve, and that said sleeve has at least one air passage in the region of said air-aspirating chamber.
Claim 8
Dependent Claim
18 words
The device of claim 6, wherein said coiled spring is provided in the region of said aspirating chamber.
Claim 9
Dependent Claim
14 words
The device of claim 7, wherein said sleeve and said mouthpiece are threadably engaged.
Claim 10
Dependent Claim
11 words
The device of claim 1, wherein said pressure vessel is exchangeable.
References Cited (Backward Citations)
US2830597A
Cited
US3721240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-15 | 1983-04-16 | 1983-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-15 | 1987-04-16 | 1987-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-15 | 1991-04-16 | 1991-10-16 | $7700.00 | Window Closed / Lapsed |