Patent US2178356A successfully refreshed from Google Patents.
Patent US3733010A successfully refreshed from Google Patents.
US3733010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air pressure operated dispenser
Assignee: Novartis Corp
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Filing: 1971-04-30
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Granted: 1973-05-15
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Expires: 1991-04-30
Abstract
Abstract A dispensing device in which the product to be dispensed is aspirated and sprayed by the discharge of pressurized air. A valve assembly has a product flow path therethrough and a compressed air flow path therethrough. The valve stem of the assembly is actuated to open the compressed air flow path, and a flap valve is actuated to open the product flow path. Aspirating means is provided at the upper end of said stem for bringing one end of each of said flow paths together. A piston-cylinder assembly is provided on the device having a cylinder with one end around the end of the compressed air flow path, a piston slidable in the cylinder, and a piston rod on said piston and rod on said piston and extending out of the other end of said cylinder. A product container means is connected around the end of the product flow path remote from the aspirating means. The end of the valve stem extends into the cylinder and is engaged by the piston rod for moving the valve stem relative to the valve body for opening the compressed air flow path when the piston is moved to the inner end of the cylinder adjacent the valve assembly to provide a predetermined amount of compressed air. The action of the aspirating means opens the flap valve to draw the product to be dispensed from the product container and dispense it.
Inventors
- 👤 P Riccio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:06
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B65D83/66; A; A61; A61M; A61M11/00; A61M11/06; B05; B05B; B05B11/00; B05B11/01; B05B11/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
257 words
A dispensing device comprising: an integral cylinder and valve body having a compressed air flow path therethrough; aspirating means in said valve body at one end of said compressed air flow path, the other end of the compressed air flow path opening into said cylinder; a valve member movable in said valve body adjacent said cylinder and obturating said compressed air flow path; spring means engaging said valve member and normally holding said valve member in the obturating position; a product containing means in said device and mounted on said valve body, said valve body having a product flow path therethrough from said product containing means to said aspirating means; a piston means comprising a piston member slidable in said cylinder, said piston means extending out of the other end of said cylinder; and extension means on one of said members and engageable with the other member when the piston member is at the end of said cylinder adjacent said valve member for moving said valve member relative to said valve body for opening said compressed air flow path only after said piston member is moved to the end of said cylinder adjacent said valve member, said spring means being sufficiently strong to hold said valve member closed against the force of the air being compressed in said cylinder until moved when said piston member is at the end of said cylinder adjacent said valve member and yet be overcome by the force on said piston sufficient to move said piston to the end of said cylinder.
Claim 2
Dependent Claim
257 words
A dispensing device comprising: an integral cylinder and valve body having a compressed air flow path therethrough; aspirating means in said valve body at one end of said compressed air flow path, the other end of the compressed air flow path opening into said cylinder; a valve member movable in said valve body adjacent said cylinder and obturating said compressed air flow path; spring means engaging said valve member and normally holding said valve member in the obturating position; a product containing means in said device and mounted on said valve body, said valve body having a product flow path therethrough from said product containing means to said aspirating means; a piston means comprising a piston member slidable in said cylinder, said piston means extending out of the other end of said cylinder; and extension means on one of said members and engageable with the other member when the piston member is at the end of said cylinder adjacent said valve member for moving said valve member relative to said valve body for opening said compressed air flow path only after said piston member is moved to the end of said cylinder adjacent said valve member, said spring means being sufficiently strong to hold said valve member closed against the force of the air being compressed in said cylinder until moved when said piston member is at the end of said cylinder adjacent said valve member and yet be overcome by the force on said piston sufficient to move said piston to the end of said cylinder.
Claim 3
Dependent Claim
36 words
A dispensing device as claimed in claim 1 in which said extension means is on said valve member and extends into said cylinder and is engaged by said member at the end of the compression stroke.
Claim 4
Dependent Claim
38 words
A dispensing device as claimed in claim 1 in which said extension means is on said piston member and extends into said compressed air flow path and engages said valve member at the end of the compression stroke.
Claim 5
Dependent Claim
50 words
A dispensing device as claimed in claim 1 in which said valve assembly has a valve seat in said flow path which is engaged by said valve member, said spring means being a valve member return spring engaged with said valve member urging said valve member againSt the valve seat.
Claim 6
Dependent Claim
30 words
A dispensing device as claimed in claim 1 further comprising a piston return spring engaged with said piston means urging said piston means toward said other end of said cylinder.
Claim 7
Dependent Claim
38 words
A dispensing device as claimed in claim 1 in which said cylinder has an aperture therein opening into said cylinder at a point just above the position of said piston member at the start of the compression stroke.
Claim 8
Dependent Claim
31 words
A dispensing device as claimed in claim 6 in which said aperture is a slot along the length of said cylinder from said point to said other end of said cylinder.
Claim 9
Dependent Claim
72 words
A dispensing device as claimed in claim 1 in which said cylinder assembly is on one end of said device and said product containing means comprises a hollow housing member detachably connected to the other end of said device and having a space therein constituting said product containing means, said valve body and aspirating means being between said cylinder assembly and said product containing means and being directed laterally of the device.
Claim 10
Dependent Claim
110 words
A dispensing device as claimed in claim 8 in which said piston rod has a pressure exerting member thereon and said pressure exerting member has a sleeve depending therefrom and extending along the outside of said cylinder assembly and covering said cylinder assembly and said valve body and aspirating means, said valve body having a recess therein in which said aspirating means is positioned, said sleeve having an aperture therein which when the piston member is at the end of the compression stroke is aligned with said recess in which said aspirating means is positioned so that the spray of material to be dispensed can be sprayed through said aperture.
Claim 11
Dependent Claim
49 words
A dispensing device as claimed in claim 9 in which said cylinder assembly and said valve body have an orientation key therealong and said sleeve has a correspondingly shaped portion fitting around said key, whereby the sleeve is guided in its sliding movement along the cylinder and valve body.
Claim 12
Dependent Claim
77 words
A dispensing device as claimed in claim 10 in which the end of said key remote from said pressure exerting member is beveled and the end of said correspondingly shaped portion of said sleeve is correspondingly beveled, said beveled end of said correspondingly shaped portion engaging said beveled end of said key to act as to stop to prevent further movement of said piston out of said cylinder under the action of said piston member return spring.
Claim 13
Dependent Claim
56 words
A dispensing device as claimed in claim 11 in which said recess with said aspirating means therein opens out through said beveled end of said key, and the beveled end of said correspondingly shaped portion has a seal on the inside surface thereof which seals said recess when said beveled ends are engaged with each other.
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) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |