US3756472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Micro-emitter
Assignee: HOHNSOM AND SON Inc S
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Filing: 1971-10-18
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Granted: 1973-09-04
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Expires: 1991-10-18
Abstract
Abstract A micro-emitter for pressure packages comprises an apertured member disposed across the nozzle opening through which a fluid product in the pressure package is expelled. The apertured member has at least one aperture which is from 0.5 to 15 Mu in diameter. In one instance, propellant pressure is used to force the fluid through the aperture and break it into small drops. In a second instance a high velocity stream of vapor is used to assist the break up of the liquid either before the apertured member or after the fluid is forced through the apertures.
Inventors
- 👤 K Vos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
B; B65; B65D; B65D83/00; B65D83/14; B65D83/16; B65D83/20; B65D83/24; B65D83/75; B65D83/754
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
98 words
A device for continuously dispensing fluid from a pressurized container which has a discharge conduit defining a channel extending from the liquid reservoir to the atmosphere, said conduit comprising: - a dip tube having one end positioned to be in said fluid; and - a nozzle means having its innermost end attached to the other end of said dip tube, said nozzle means having an apertured member positioned therein to be the last element for forming droplets of the discharged spray, said apertured member defining at least one aperture of diameter of from 0.5 to 15 Mu .
Claim 2
Independent Claim
98 words
A device for continuously dispensing fluid from a pressurized container which has a discharge conduit defining a channel extending from the liquid reservoir to the atmosphere, said conduit comprising: - a dip tube having one end positioned to be in said fluid; and - a nozzle means having its innermost end attached to the other end of said dip tube, said nozzle means having an apertured member positioned therein to be the last element for forming droplets of the discharged spray, said apertured member defining at least one aperture of diameter of from 0.5 to 15 Mu .
Claim 3
Dependent Claim
47 words
The device of claim 1 wherein said apertured member is selected from the group consisting of polycarbonate, glass, sintered silver, sintered stainless steel, sintered high density polyethylene, cellulose acetate, cellulose nitrate, etched stainless steel, etched copper and electrodeposited nickel, tin-lead alloy, rhodium, gold, copper, silver or iron.
Claim 4
Dependent Claim
14 words
The device of claim 1 which further includes filtering means secured within said channel.
Claim 5
Dependent Claim
193 words
In an aerosol container having a depress type valve, a dip tube depending from said valve into said container and a valve stem extending upwardly from said valve, a continuous dispensing device which comprises: a top hat positioned over the end of said valve stem and defining a discharge channel and having an outermost discharge exit; an apertured member mounted within said channel and interposed between said valve stem and said discharge exit, said apertured member having at least one aperture having a diameter of from 0.5 to 15said apertured member being the last element for forming droplets of the discharged spray; filter means mounted within said top hat between said apertured member and said valve stem, said filter means being capable of filtering out solid particles of a size at least as large as the smallest of said at least one aperture; sealing means within said top hat to prevent leakage of fluid normally flowing from said valve stem through said top hat; and locking means engaging said top hat and adapted to depress said top hat and valve stem to open said valve and to maintain said valves in open position.
Claim 6
Dependent Claim
193 words
In an aerosol container having a depress type valve, a dip tube depending from said valve into said container and a valve stem extending upwardly from said valve, a continuous dispensing device which comprises: a top hat positioned over the end of said valve stem and defining a discharge channel and having an outermost discharge exit; an apertured member mounted within said channel and interposed between said valve stem and said discharge exit, said apertured member having at least one aperture having a diameter of from 0.5 to 15said apertured member being the last element for forming droplets of the discharged spray; filter means mounted within said top hat between said apertured member and said valve stem, said filter means being capable of filtering out solid particles of a size at least as large as the smallest of said at least one aperture; sealing means within said top hat to prevent leakage of fluid normally flowing from said valve stem through said top hat; and locking means engaging said top hat and adapted to depress said top hat and valve stem to open said valve and to maintain said valves in open position.
Claim 7
Dependent Claim
18 words
The device of claim 4, wherein pre-filtering means is interposed between said dip tube and said depress valve.
Claim 8
Dependent Claim
66 words
The device of claim 4, wherein said locking means comprises: an upstanding cylinder shaped member mountable to said valve cap; and a rotatable cap threadably engaging said cylinder member and defining a central orifice through which said discharge exit extends, the rim of said orifice being engageable with said top hat whereby, rotation of said cap downward depresses said top hat and actuates said depress valve.
Claim 9
Dependent Claim
26 words
The device of claim 4, wherein a spider is interposed between said filter means and said apertured member to prevent said filter from stopping fluid flow.
Claim 10
Independent Claim
97 words
A device for continuously dispensing fluid from a pressurized container which comprises: a dip tube; nozzle means positioned over one end of said dip tube; an apertured member secured within said nozzle means positioned to be the last element for forming droplets of the discharged spray, said apertured member defining at least one aperture having a diameter of from 0.5 to 15 Mu ; and means defining at least one vapor channel directing vapor from within said container to said nozzle to impact upon droplets of said fluid after such droplets are forced through said apertured member.
Claim 11
Independent Claim
97 words
A device for continuously dispensing fluid from a pressurized container which comprises: a dip tube; nozzle means positioned over one end of said dip tube; an apertured member secured within said nozzle means positioned to be the last element for forming droplets of the discharged spray, said apertured member defining at least one aperture having a diameter of from 0.5 to 15 Mu ; and means defining at least one vapor channel directing vapor from within said container to said nozzle to impact upon droplets of said fluid after such droplets are forced through said apertured member.
Claim 12
Dependent Claim
37 words
The device of claim 8, wherein said means defining at least one vapor channel is a solid member surrounding said dip tube having at least one vapor channel communicating said nozzle with the interior of said container.
Claim 13
Dependent Claim
15 words
The device of claim 8, wherein said vapor channel terminates exteriorly of said apertured member.
Claim 14
Dependent Claim
46 words
The device of claim 8 wherein said apertured member defines a multiplicity of apertures and wherein said apertured member extends across said vapor channel whereby said vapor passes therethrough at a position adjacent to that portion of said apertured member through which a liquid is passing.
Claim 15
Dependent Claim
19 words
The device of claim 8, wherein said vapor channel terminates in a conical channel concentric with said dip tube.
Claim 16
Dependent Claim
36 words
The device of claim 8, wherein said vapor channel is parallel to said dip tube and said device further includes a raised flange positioned exteriorly of said apertured member to direct vapor to said nozzle means.
Claim 17
Dependent Claim
57 words
The device of claim 8, wherein said dip tube includes an expanded chamber preceding said apertured member, said chamber having an annular shoulder, said means defining at least one vapor channel comprises a lateral port through the side of said chamber, and said device further includes a floating disc positioned between said shoulder and said apertured member.
Claim 18
Independent Claim
142 words
A device for continuously dispensing a fluid from a pressurized container which comPrises: a dip tube; an elongate tubular member positioned over an end of said dip tube, said member having a centrally disposed orifice communicating with said dip tube, said nozzle member and said central orifice having an interior diameter greater than the exterior diameter of said dip tube to form an annular vapor canal therebetween; an apertured member positioned between said central orifice and said dip tube in a position to be the last element forming droplets of the discharged spray, said apertured member defining a multiplicity of apertures having diameters of from 0.5 to 15 Mu , some of said apertures being within said vapor canal and at least one being over said dip tube; and annular sealing means positioned to secure said apertured member to said nozzle member.
Claim 19
Independent Claim
142 words
A device for continuously dispensing a fluid from a pressurized container which comPrises: a dip tube; an elongate tubular member positioned over an end of said dip tube, said member having a centrally disposed orifice communicating with said dip tube, said nozzle member and said central orifice having an interior diameter greater than the exterior diameter of said dip tube to form an annular vapor canal therebetween; an apertured member positioned between said central orifice and said dip tube in a position to be the last element forming droplets of the discharged spray, said apertured member defining a multiplicity of apertures having diameters of from 0.5 to 15 Mu , some of said apertures being within said vapor canal and at least one being over said dip tube; and annular sealing means positioned to secure said apertured member to said nozzle member.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |