US4003501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid impingement mixing apparatus
Assignee: McNeil Corp
•
Filing: 1975-03-12
•
Granted: 1977-01-18
•
Expires: 1995-03-12
Abstract
Abstract Disclosed is a device which permits a plurality of fluids to be received in a mixing chamber simultaneously through nozzles from fluid input chambers. Actuation of a fluid cylinder opens valves so that the fluids are received under pressure in the input chambers. A second fluid cylinder then opens the mixing chamber so that the nozzles emit both fluids simultaneously which mix by impingement and thereafter are dispensed from the mixing chamber. When the valves are closed recirculation is accomplished through a plurality of ports, thereby allowing the fluids to remain at desirable temperatures and viscosity.
Inventors
- 👤 Dario J. Ramazzotti
- 👤 Geza A. Thiry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:24
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/74; B29B7/76; B29B7/7663; B29B7/7631; B29B7/7636; B29B7/7684; B29B7/7689
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
189 words
Apparatus for mixing a plurality of fluids and thereafter dispensing the same comprising a fluid mixing chamber with at least one separate opening therein from which the fluids are dispensed; at least two nozzle means for emitting fluid to said mixing chamber; a fluid input chamber communicating with each said nozzle means; means to provide fluid under pressure to each said input chamber; said means to provide fluid under pressure including fluid input means, valve means, and means to operate said valve means from a closed to open position, said valve means communicating with said fluid input means and each said input chamber such that when said valve means is in an open position fluid is permitted to flow from said input means to each said input chamber; said means to operate said valve means including a fluid actuated cylinder having a stationary piston and piston rod and movable cylinder housing, said cylinder housing being connected to said valve means to open and close the same; and means to prevent said nozzle means from emitting fluid to said mixing chamber until after each input chamber receives fluid under pressure.
Claim 2
Dependent Claim
189 words
Apparatus for mixing a plurality of fluids and thereafter dispensing the same comprising a fluid mixing chamber with at least one separate opening therein from which the fluids are dispensed; at least two nozzle means for emitting fluid to said mixing chamber; a fluid input chamber communicating with each said nozzle means; means to provide fluid under pressure to each said input chamber; said means to provide fluid under pressure including fluid input means, valve means, and means to operate said valve means from a closed to open position, said valve means communicating with said fluid input means and each said input chamber such that when said valve means is in an open position fluid is permitted to flow from said input means to each said input chamber; said means to operate said valve means including a fluid actuated cylinder having a stationary piston and piston rod and movable cylinder housing, said cylinder housing being connected to said valve means to open and close the same; and means to prevent said nozzle means from emitting fluid to said mixing chamber until after each input chamber receives fluid under pressure.
Claim 3
Dependent Claim
26 words
Apparatus according to claim 1 further comprising means to recirculate the fluid to said fluid input means when said valve means is in a closed position.
Claim 4
Dependent Claim
24 words
Apparatus according to claim 1 further comprising biasing means acting against said fluid actuated cylinder to maintain said valve means in a closed position.
Claim 5
Dependent Claim
24 words
Apparatus according to claim 1 wherein said means to prevent said nozzle means from emitting fluid includes a plunger normally closing said mixing chamber.
Claim 6
Dependent Claim
33 words
Apparatus according to claim 4 wherein said plunger is approximately the same size as said mixing chamber so that upon movement therethrough said mixing chamber and said opening therein are purged of fluids.
Claim 7
Dependent Claim
30 words
Apparatus according to claim 4 wherein said means to prevent said nozzle means from emitting fluid further includes a second fluid actuated cylinder having a piston rod carrying said plunger.
Claim 8
Dependent Claim
209 words
Apparatus for mixing a plurality of fluids and thereafter dispensing the same comprising a fluid mixing chamber with at least one separate opening therein from which the fluids are dispensed; at least two nozzle means for emitting fluid to said mixing chamber; a fluid input chamber communicating with each said nozzle means; means to provide fluid under pressure to each said input chamber; said means to provide fluid under pressure including fluid input means, valve means, and means to operate said valve means from a closed to open position, said valve means communicating with said fluid input means and each said input chamber such that when said valve means is in an open position fluid is permitted to flow from said input means to each said input chamber; said means to operate said valve means including a first fluid actuated cylinder; and means to prevent said nozzle means from emitting fluid to said mixing chamber until after each input chamber receives fluid under pressure; said means to prevent including a plunger normally closing said mixing chamber and a second fluid actuated cylinder having a piston rod carrying said plunger; said first fluid actuated cylinder including a hollow piston rod forming the cylinder housing for said second fluid actuated cylinder.
Claim 9
Dependent Claim
209 words
Apparatus for mixing a plurality of fluids and thereafter dispensing the same comprising a fluid mixing chamber with at least one separate opening therein from which the fluids are dispensed; at least two nozzle means for emitting fluid to said mixing chamber; a fluid input chamber communicating with each said nozzle means; means to provide fluid under pressure to each said input chamber; said means to provide fluid under pressure including fluid input means, valve means, and means to operate said valve means from a closed to open position, said valve means communicating with said fluid input means and each said input chamber such that when said valve means is in an open position fluid is permitted to flow from said input means to each said input chamber; said means to operate said valve means including a first fluid actuated cylinder; and means to prevent said nozzle means from emitting fluid to said mixing chamber until after each input chamber receives fluid under pressure; said means to prevent including a plunger normally closing said mixing chamber and a second fluid actuated cylinder having a piston rod carrying said plunger; said first fluid actuated cylinder including a hollow piston rod forming the cylinder housing for said second fluid actuated cylinder.
Claim 10
Dependent Claim
32 words
An apparatus according to claim 7 wherein said plunger is approximately the same size as said mixing chamber so that upon movement therethrough said mixing chamber and said opening therein are purged.
References Cited (Backward Citations)
US2642206A
Cited
US2905361A
Cited
US3111389A
Cited
US3051455A
Cited
US3207486A
Cited
US3558051A
Cited
US3622050A
Cited
US3788337A
Cited
US3687370A
Cited
US3799199A
Cited
US3790030A
Cited
US3746311A
Cited
US3799403A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-18 | 1980-07-19 | 1981-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-18 | 1984-07-19 | 1985-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-18 | 1988-07-19 | 1989-01-18 | $7700.00 | Window Closed / Lapsed |