Patent US3610481A successfully refreshed from Google Patents.
US3610481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-fluid aerosol dispenser with internal collapsible secondary fluid container
Assignee: Individual
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Filing: 1969-05-27
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Granted: 1971-10-05
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Expires: 1989-05-27
Abstract
Abstract Primary and secondary fluids are held separately in outer and inner pressurized containers prior to dispensing through a common mixing and discharge nozzle. Separate flow passages from the containers to the nozzle are provided and the flow of the primary and secondary fluids through these passages is regulated by a pair of distortable valve elements which also serve as springs.
Inventors
- 👤 Leonard L Marraffino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:54
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/60; B65D83/62
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
136 words
A pressurized dispenser for primary and secondary fluids comprising separated container means for said fluids, a common valve head having a connection with the separated container means, a reciprocating valve stem having guided engagement with the valve head and having a mixing chamber for said fluids and separate inlet ports for said primary and secondary fluids, and a pair of distortable resilient washer valve elements each having a connection with said valve head and stem and each having a part covering one of said ports when the valve stem is in a nondispensing position, said valve elements resiliently holding the valve stem in said nondispensing position and allowing the valve stem to be shifted in one axial direction to a dispensing position wherein the valve elements are distorted and said ports are uncovered by said parts.
Claim 2
Dependent Claim
136 words
A pressurized dispenser for primary and secondary fluids comprising separated container means for said fluids, a common valve head having a connection with the separated container means, a reciprocating valve stem having guided engagement with the valve head and having a mixing chamber for said fluids and separate inlet ports for said primary and secondary fluids, and a pair of distortable resilient washer valve elements each having a connection with said valve head and stem and each having a part covering one of said ports when the valve stem is in a nondispensing position, said valve elements resiliently holding the valve stem in said nondispensing position and allowing the valve stem to be shifted in one axial direction to a dispensing position wherein the valve elements are distorted and said ports are uncovered by said parts.
Claim 3
Dependent Claim
46 words
A pressurized dispenser as defined by claim 1, and wherein each valve element is an annular body having a marginal portion clamped to a part of the valve head and having a central bore snugly surrounding the valve stem adjacent to one of said inlet ports.
Claim 4
Dependent Claim
29 words
A pressurized dispenser as defined by claim 2, and wherein the valve stem has axially spaced external annular grooves within which the bores of the valve elements are seated.
Claim 5
Dependent Claim
35 words
A pressurized dispenser as defined by claim 3, and wherein the valve elements have crowned central portions which are normally spaced axially outwardly of the marginal portions when the valve elements are relaxed and undistorted.
Claim 6
Dependent Claim
24 words
A pressurized dispenser as defined by claim 2, and wherein the valve elements are substantially flat annular bodies while in a relaxed undistorted condition.
Claim 7
Dependent Claim
34 words
A pressurized dispenser as defined by claim 5, and wherein the valve head has an annular internal chamber surrounding the valve stem between said distortable valve elements, and a compression spring in said chamber.
Claim 8
Dependent Claim
43 words
A pressurized dispenser as defined by claim 3, and wherein the axially interior valve element is a relatively thick element having a crowned central portion projecting axially outwardly of its marginal portion, the outermost valve element being a relatively thin flat annular body.
Claim 9
Dependent Claim
81 words
A pressurized dispenser as defined by claim 1, and wherein the separated container means comprises an outer substantially rigid container for primary fluid under pressure and an inner container for secondary fluid disposed bodily inside of the outer container and being at least in part collapsible under the pressure of the fluid within the outer container, said valve head having port means in communication with the outer container and in communication with the primary fluid inlet port of the valve stem.
Claim 10
Dependent Claim
66 words
A pressurized dispenser as defined by claim 8, and wherein said inlet ports of the valve stem are radially disposed and said washer valve elements have bores which normally seal the outer ends of the radial ports when the valve elements are undistorted, said bores stretching to uncover the ports when the valve elements are distorted by shifting of the valve stem in one axial direction.
Claim 11
Dependent Claim
38 words
A pressurized dispenser as defined by claim 8, and wherein said valve stem has a central bore communicating with said radial ports and a somewhat enlarged bore portion constituting a mixing chamber for said primAry and secondary fluids.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |