US3746216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid mixer-dispenser
Assignee: United States Department of the Navy
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Filing: 1971-09-10
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Granted: 1973-07-17
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Expires: 1991-09-10
Abstract
Abstract A fluid mixer-dispenser for use with two component adhesives including a generally cylindrical body having a pair of adjacent parallel cylindrical bores within which a pair of pistons are slidably mounted. A valve system fluidly seals the end of the bores and comprises three thin circular discs, one of which is a solid rupture disc and the remaining two flanking discs have appropriately shaped cutouts therein to prevent premature rupture due to backpressure when used in an underwater environment and to provide rupture at the appropriate internal pressure due to depression of the pistons. A mixing chamber is provided and includes a plurality of discs having appropriately formed cutouts such that when stacked, form passages for the fluids to flow through.
Inventors
- 👤 A Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:14
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/32; B65D81/325; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/421; B01F25/422; B01F25/45; B01F25/452; B01F25/4521; B01F33/00; B01F33/50; B01F33/501; B01F33/5011; B01F2101/00; B01F2101/2305; B01F2101/36; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1707; Y10T137/1714
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
A fluid mixer-dispenser comprising: a body member having a plurality of chambers for receiving various fluid materials; piston means fluidly sealing one end of said chambers and operatively associated therewith for ejecting said fluids therefrom; laminar valve means positioned at the end of said body member opposite said piston means for fluidly sealing the other end of said chambers and for selectively permitting fluid communication between the external environment and said chambers only in response to interiorly applied pressure; laminar mixing means connected to said valve means for intimately mixing the fluids ejected from said chambers; and nozzle means connected to said mixing means for directing the egress of the mixed fluids from said mixing means.
Claim 2
Dependent Claim
116 words
A fluid mixer-dispenser comprising: a body member having a plurality of chambers for receiving various fluid materials; piston means fluidly sealing one end of said chambers and operatively associated therewith for ejecting said fluids therefrom; laminar valve means positioned at the end of said body member opposite said piston means for fluidly sealing the other end of said chambers and for selectively permitting fluid communication between the external environment and said chambers only in response to interiorly applied pressure; laminar mixing means connected to said valve means for intimately mixing the fluids ejected from said chambers; and nozzle means connected to said mixing means for directing the egress of the mixed fluids from said mixing means.
Claim 3
Dependent Claim
74 words
A fluid mixer-dispenser as recited in claim 1 wherein said laminar mixing means comprises: a laminar mixing chamber including a plurality of thin discs adapted to be stacked upon each other, each one of said discs having appropriately shaped cutouts such that when said discs are stacked, said cutouts form intersecting passages which cooperate with said piston means within said chambers to direct said fluid materials in such a manner that they intimately mix.
Claim 4
Dependent Claim
90 words
A mixer-dispenser as recited in claim 2 wherein said laminar valve means comprises: a thin rupture disc normally sealing said compartments from the external environment; a back-up disc provided on one side of said rupture disc between said rupture disc and said body member having a pair of clusters of small circular cutouts formed therein at positions defined by the ends of said compartments; and a thin disc positioned on the other side of said rupture disc having a pair of holes formed therein having diameters determinative of rupture pressure.
References Cited (Backward Citations)
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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) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |