US3861564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product pressurizing dispenser including product flow cutoff
Assignee: Novartis Corp
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Filing: 1973-10-31
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Granted: 1975-01-21
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Expires: 1993-10-31
Abstract
Abstract A device for dispensing liquid product in fine droplet form has a dispenser body having a bore therethrough. A product pressurizing piston cylinder means is provided on one end of the dispenser body for pressurizing liquid product in the product pressurizing means. An air compressing piston cylinder means is provided on the other end of the dispenser body having a member movable through a compression stroke for compressing air within the air compressing piston cylinder means and supplying it to the bore of the dispenser body. A dispensing nozzle means is provided on the dispenser body having a compressed air passage and a liquid passage therethrough for co-mingling the compressed air and liquid and dispensing the liquid product in fine droplet form in the compressed air. The dispenser body has a liquid passage opening out of one end of the bore and extending to the dispensing nozzle means and a compressed air passage opening out of the other end of the bore and extending to the dispensing nozzle means. When pressure is exerted from opposite ends of the device, gas valve means in the bore are movable to open the compressed air passage, and liquid valve means in the bore are movable to open the liquid passage by the movement of the movable member of the air compressing piston cylinder means near the end of the compression stroke only when said air compressing piston cylinder means has compressed air to a predetermined pressure.
Inventors
- 👤 Herbert H Loeffler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:28
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B05; B05B; B05B11/00; B05B11/01; B05B11/06; G; G01; G01F; G01F11/00; G01F11/28; G01F11/30; G01F11/32
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
434 words
A device for dispensing liquid product in fine droplet form in compressed air, comprising: a dispenser body having a bore therethrough; a product pressurizing piston cylinder means on one end of said dispenser body and having a fixed member and a movable member movable relative to the fixed member for pressurizing liquid product in said product pressurizing means, and having a product passageway therethrough opening into said bore; air compressing piston cylinder means on the other end of said dispenser body having a fixed member and a movable member movable relative to said fixed member through a compression stroke for compressing air within said air compressing piston cylindeR means and supplying it to said bore, said movable member of said air compressing piston cylinder means being movable in opposition to the movable member of said product pressurizing piston cylinder means; a dispensing nozzle means on said dispenser body having a compressed air passage and a liquid passage therethrough for co-mingling the compressed air and liquid and dispensing the liquid product in fine droplet form in the compressed air, said dispenser body having a liquid passage opening out of one end of said bore and extending to said dispensing nozzle means and said dispenser body having a compressed air passage opening out of the other end of said bore and extending to said dispensing nozzle means; gas valve means in said bore normally obturating said compressed air passage and movable to open said compressed air passage, and liquid valve means in said bore normally obturating said liquid passage and movable to open said liquid passage, and a valve moving stem reciprocably movable in said bore engaging both said valve means; and actuating pin means operatively associated with said movable member of said air compressing piston cylinder means and said valve moving stem for positively actuating said stem and hence said valve means near the end of the compression stroke only when said air compressing piston cylinder means has compressed air to a predetermined pressure; whereby when liquid is present in said product pressurizing piston cylinder means and pressure is exerted on said product pressurizing piston cylinder means and said air compressing piston cylinder means to force the movable members thereof toward each other, pressure exerted on the liquid and the air pressurizes the liquid and compresses the air until the actuating pin means moves said valve moving stem to open said compressed air passage and said liquid passage, whereupon said compressed air and liquid under pressure are delivered to said nozzle means and the liquid is dispensed in fine droplet form in the compressed air.
Claim 2
Independent Claim
434 words
A device for dispensing liquid product in fine droplet form in compressed air, comprising: a dispenser body having a bore therethrough; a product pressurizing piston cylinder means on one end of said dispenser body and having a fixed member and a movable member movable relative to the fixed member for pressurizing liquid product in said product pressurizing means, and having a product passageway therethrough opening into said bore; air compressing piston cylinder means on the other end of said dispenser body having a fixed member and a movable member movable relative to said fixed member through a compression stroke for compressing air within said air compressing piston cylindeR means and supplying it to said bore, said movable member of said air compressing piston cylinder means being movable in opposition to the movable member of said product pressurizing piston cylinder means; a dispensing nozzle means on said dispenser body having a compressed air passage and a liquid passage therethrough for co-mingling the compressed air and liquid and dispensing the liquid product in fine droplet form in the compressed air, said dispenser body having a liquid passage opening out of one end of said bore and extending to said dispensing nozzle means and said dispenser body having a compressed air passage opening out of the other end of said bore and extending to said dispensing nozzle means; gas valve means in said bore normally obturating said compressed air passage and movable to open said compressed air passage, and liquid valve means in said bore normally obturating said liquid passage and movable to open said liquid passage, and a valve moving stem reciprocably movable in said bore engaging both said valve means; and actuating pin means operatively associated with said movable member of said air compressing piston cylinder means and said valve moving stem for positively actuating said stem and hence said valve means near the end of the compression stroke only when said air compressing piston cylinder means has compressed air to a predetermined pressure; whereby when liquid is present in said product pressurizing piston cylinder means and pressure is exerted on said product pressurizing piston cylinder means and said air compressing piston cylinder means to force the movable members thereof toward each other, pressure exerted on the liquid and the air pressurizes the liquid and compresses the air until the actuating pin means moves said valve moving stem to open said compressed air passage and said liquid passage, whereupon said compressed air and liquid under pressure are delivered to said nozzle means and the liquid is dispensed in fine droplet form in the compressed air.
Claim 3
Dependent Claim
55 words
A device for dispensing liquid product as claimed in claim 1 in which said fixed member of said product pressurizing piston cylinder means is a piston mounted on said dispenser body and having a product passageway therethrough for conducting product to said bore, and said movable member thereof is a cylinder slidable around said piston.
Claim 4
Dependent Claim
48 words
A device for dispensing liquid product as claimed in claim 2 in which said piston of said product pressurizing piston cylinder means and said dispenser body have spigot and recess means therebetween with said spigot being removably positioned in said recess means and having said product passageway therethrough.
Claim 5
Dependent Claim
33 words
A device for dispensing liquid product as claimed in claim 3 in which said spigot is on said piston and said recess is around the end of said bore in said dispenser body.
Claim 6
Dependent Claim
46 words
A device for dispensing liquid product as claimed in claim 1 in which said fixed member of air compressing piston cylinder means is a cylinder mounted on said dispenser body and said movable member thereof is a piston movable in said cylinder through said compression stroke.
Claim 7
Dependent Claim
86 words
A device for dispensing liquid product as claimed in claim 1 in which said gas valve means comprises a ring gasket around said valve stem and fixed relative thereto and sealing said bore and movable during the movement of said valve moving stem from a position between the opening of said compressed air passage into said bore and said air compressing piston cylinder means and a position on the other side of the opening of said compressed air passage from said air compressing position cylinder means.
Claim 8
Dependent Claim
69 words
A device for dispensing liquid as claimed in claim 6 in which said actuating pin means is an actuating pin mounted on the end of said valve moving stem toward said air compressing piston cylinder means and extending into said cylinder thereof, and said valve moving stem has an air valve retaining flange thereon, said ring gasket being held between said actuatIng pin and said air valve retaining flange.
Claim 9
Dependent Claim
75 words
A device for dispensing liquid as claimed in claim 1 in which said liquid valve means comprises a valve member on said valve moving stem between said opening of said liquid passage into said bore and said product pressurizing piston cylinder means, a valve seat in said bore, said valve member cooperating with said valve seat and being moved off said valve seat when said valve actuating stem is moved by said actuating pin means.
Claim 10
Dependent Claim
184 words
A device for dispensing liquid as claimed in claim 1 in which said gas valve means is positioned in said dispenser body bore and is movable from a position between the opening of said compressed air passage into said bore and said air compressing piston cylinder means and a position on the other side of the opening of said compressed air passage from said air compressing piston cylinder means, and said liquid valve means is positioned between said opening of said liquid passage into said bore and said product pressurizing piston cylinder means, and said device further comprises a lost motion valve means in said bore and engageable by said valve moving stem to be moved from a position in which it is clear of said liquid passage of the start of movement of said stem by said actuating pin means, to a position at which it obturates said liquid passage at the end of the movement of said stem, and engageable by said valve moving stem for being moved to the initial position thereof during the return movement of said valve moving stem.
References Cited (Backward Citations)
US3788556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |