US3844449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple purpose disperser
Assignee: United States Department of the Army
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Filing: 1970-11-27
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Granted: 1974-10-29
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Expires: 1990-11-27
Abstract
Abstract An apparatus and method for dispersing solid and liquid materials by utilizing a medium under pressure in one chamber to force the material in another chamber to a discharge means to be dispensed upon actuation of the discharge means; the apparatus being unitary, compact, lightweight, and portable.
Inventors
- 👤 F Alter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:53
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/0805; B05B9/0833; F; F41; F41H; F41H9/00; F41H9/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
232 words
An apparatus for dispensing liquid and solid material comprising: a tubular frame carrier of substantially rectangular shape adapted for fitting to the back of a human being by way of shoulder and waist straps fixedly connected to said carrier with the long sides of said tubular frame carrier oriented vertically; a portable elongated tank containing material to be dispensed mounted centrally on said frame carrier parallel to said long sides; an elongated cylinder confining therein gas at high pressure mounted upon said frame carrier extending transverse to said long sides and adjacent to said tank lower most on said frame when in carrying position; a regulator meAns mounted upon one of said long sides and located between the tank and cylinder said regulator means being adapted to reduce the pressure between the cylinder and the tank; a first conduit means connecting a high pressure side of the regulator means to the cylinder; a second conduit means connecting a low pressure side of the regulator means to an adapter means; said adapter means being adapted to connect to the tank and including a quick disconnect coupling means; flow means including a check valve connected to the cylinder to permit fluid flow from the cylinder to the regulator means; and a trigger activated gun discharge means connected to an outlet side of the adapter means with hose to dispense the material from the tank.
Claim 2
Independent Claim
232 words
An apparatus for dispensing liquid and solid material comprising: a tubular frame carrier of substantially rectangular shape adapted for fitting to the back of a human being by way of shoulder and waist straps fixedly connected to said carrier with the long sides of said tubular frame carrier oriented vertically; a portable elongated tank containing material to be dispensed mounted centrally on said frame carrier parallel to said long sides; an elongated cylinder confining therein gas at high pressure mounted upon said frame carrier extending transverse to said long sides and adjacent to said tank lower most on said frame when in carrying position; a regulator meAns mounted upon one of said long sides and located between the tank and cylinder said regulator means being adapted to reduce the pressure between the cylinder and the tank; a first conduit means connecting a high pressure side of the regulator means to the cylinder; a second conduit means connecting a low pressure side of the regulator means to an adapter means; said adapter means being adapted to connect to the tank and including a quick disconnect coupling means; flow means including a check valve connected to the cylinder to permit fluid flow from the cylinder to the regulator means; and a trigger activated gun discharge means connected to an outlet side of the adapter means with hose to dispense the material from the tank.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1 wherein the pressure is reduced by said regulator means from a high pressure range of 2,000 psig to 3,000 psig to a low pressure of 80 psig to 200 psig.
Claim 4
Dependent Claim
21 words
The apparatus according to claim 1 further including a low pressure rupture disc assembly disposed intermediate said regulator and said tank.
Claim 5
Dependent Claim
21 words
The apparatus according to claim 3 further including a pressure cap and bleeder assembly disposed at the outlet of said tank.
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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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |