US3768696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressurized fluid dispensing container
Assignee: Individual
•
Filing: 1971-08-06
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Granted: 1973-10-30
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Expires: 1991-08-06
Abstract
Abstract A pressurized fluid dispensing container, in which a fluid pressure vessel is positioned in an outer container and carries an outlet valve at its upper end. The lower end abuts, preferably via a pressure piece which may be threadably adjustable, the bottom wall of the vessel, while the outlet valve is located adjacent the outer container lid, so that, should said vessel expand axially due to increase in temperature, the valve is depressed, releasing some of the fluid. The quantity of fluid in the vessel may be measured by a spring balance arrangement.
Inventors
- 👤 A Laerdal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:01
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/38; B65D83/384; B65D83/386
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
157 words
A pressurized fluid dispensing container comprising, in combination: an outer container; a bottom wall at the lower end of the outer container; an internal abutment member spaced from the lower end of the container forming a removable lid of the outer container; a pressurized fluid vessel mounted within the outer container; a lower end of the vessel abutting the bottom wall of the outer container; a spring located between the bottom wall of the container and the lower end of the pressurized fluid vessel; markings on the vessel and container to indicate the compression of the spring and thus the degree of filling of the vessel; and an axially operable outlet valve at the upper end of the vessel adjacent the abutment member, whereby, upon axial expansion of the pressurized fluid vessel due to increase of temperature of the fluid, the outlet valve is opened by abutment with the abutment member to release some of the fluid.
Claim 2
Dependent Claim
157 words
A pressurized fluid dispensing container comprising, in combination: an outer container; a bottom wall at the lower end of the outer container; an internal abutment member spaced from the lower end of the container forming a removable lid of the outer container; a pressurized fluid vessel mounted within the outer container; a lower end of the vessel abutting the bottom wall of the outer container; a spring located between the bottom wall of the container and the lower end of the pressurized fluid vessel; markings on the vessel and container to indicate the compression of the spring and thus the degree of filling of the vessel; and an axially operable outlet valve at the upper end of the vessel adjacent the abutment member, whereby, upon axial expansion of the pressurized fluid vessel due to increase of temperature of the fluid, the outlet valve is opened by abutment with the abutment member to release some of the fluid.
Claim 3
Dependent Claim
35 words
A container as claimed in claim 1 wherein the lower end of the vessel is domed inwards; and further comprising a pressure piece interposed between the lower end and the bottom wall of the container.
Claim 4
Dependent Claim
48 words
A container as claimed in claim 2, wherein the pressure piece is threaded to the bottom wall of the container, and further comprising an actuating knob carried by the pressure piece externally of the bottom wall for the axial displacement of the vessel and actuation of the valve.
Claim 5
Dependent Claim
24 words
A container as claimed in claim 1 further comprising a second spring disposed between the upper end of the vessel and the abutment member.
Claim 6
Dependent Claim
38 words
A container as claimed in claim 1, wherein the marking on the vessel is a scale thereon, and further comprising means defining at least one aperture in the container in front of the scale for taking a reading.
Claim 7
Dependent Claim
36 words
A container as claimed in claim 1 further comprising a lid for the container, an injector positioned in the lid to receive the outlet valve, and a collector vessel in the lid connected to the injector.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |