Patent US4068681A successfully refreshed from Google Patents.
US4068681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid proportioning device
Assignee: Hydromix Inc
•
Filing: 1975-10-10
•
Granted: 1978-01-17
•
Expires: 1995-10-10
Abstract
Abstract The Improved Liquid Proportioning Device of this invention comprises a combination of all the features of the liquid proportioning device set forth in Applicant's prior U.S. Pat. No. 2,856,234 with the addition of a closure device including air vent means equipped with a float valve. The air vent may, in one embodiment work in combination with a flow-diverting conduit, where closure means are provided for the air vent and the flow-diverting conduit.
Inventors
- 👤 Hugh Noel McNair
- 👤 Stuart William Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:13
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/04; A01C23/042; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/316; B05; B05B; B05B7/00; B05B7/24; B05B7/2402; B05B7/244; B05B7/2443; B05B7/2445; B01F25/312; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3084; Y10T137/309; Y10T137/3099; Y10T137/8593; Y10T137/86292; Y10T137/86324; Y10T137/86332; Y10T137/87265; Y10T137/87338; Y10T137/87346; Y10T137/87571; Y10T137/87587; Y10T137/87643
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
286 words
In the apparatus comprising an attachment device applicable to a container and adapted for the proportioned admixture and dispensing of liquids, a main conduit, a venturi in said main conduit for effecting a pressure differential determining high and low pressure sides thereof during the flow of liquid therethrough, a flow diverting conduit connected with the high pressure side of the main conduit and adapted to supply a diverted flow of liquid from the said main conduit to the container, a conduit connected with the throat portion of the venturi in the said main conduit, a metering jet having an orifice inlet and a passage of greater diameter relative to the said orifice, the said jet comprising the inlet end portion of said flow-diverting conduit, the said orifice being of a predetermined ratio relative to the venturi throat portion, the relationship of the said orifice to the venturi throat portion being adapted to afford a substantially fixed ratio through a wide range of pressures and flows in the said main conduit, a header adapted for attachment to a container, both the said flow-diverting conduit and the said conduit connected with the throat portion of the venturi extending through the said header, wherein the said header is equipped with suitable air vent means to allow the escape of air during the initial filling of the container with the liquid that initially flows through the main conduit, and wherein the said header member is equipped at its base with a container closure member and wherein the closure member is fitted on its lower side with a pivot support member and two connected valve closure members each suitably designed to alternately close the flow-diverting conduit and the air vent means.
Claim 2
Dependent Claim
286 words
In the apparatus comprising an attachment device applicable to a container and adapted for the proportioned admixture and dispensing of liquids, a main conduit, a venturi in said main conduit for effecting a pressure differential determining high and low pressure sides thereof during the flow of liquid therethrough, a flow diverting conduit connected with the high pressure side of the main conduit and adapted to supply a diverted flow of liquid from the said main conduit to the container, a conduit connected with the throat portion of the venturi in the said main conduit, a metering jet having an orifice inlet and a passage of greater diameter relative to the said orifice, the said jet comprising the inlet end portion of said flow-diverting conduit, the said orifice being of a predetermined ratio relative to the venturi throat portion, the relationship of the said orifice to the venturi throat portion being adapted to afford a substantially fixed ratio through a wide range of pressures and flows in the said main conduit, a header adapted for attachment to a container, both the said flow-diverting conduit and the said conduit connected with the throat portion of the venturi extending through the said header, wherein the said header is equipped with suitable air vent means to allow the escape of air during the initial filling of the container with the liquid that initially flows through the main conduit, and wherein the said header member is equipped at its base with a container closure member and wherein the closure member is fitted on its lower side with a pivot support member and two connected valve closure members each suitably designed to alternately close the flow-diverting conduit and the air vent means.
Claim 3
Dependent Claim
23 words
The apparatus of claim 1 wherein the said metering jet can be removable and replacable to permit predetermined changes in the proportioning concentration.
Claim 4
Dependent Claim
48 words
The apparatus of claim 1 wherein the conduit connected with the throat portion of the venturi is equipted with a plurality of small orifices at or near its lower end to facilate mixing of the carrier vehicle or liquid with the chemical concentrate initially placed in the container.
Claim 5
Dependent Claim
51 words
The apparatus of claim 1 wherein the valve closure member that is designed to close the air vent is fitted with a manually operable pull member so as to allow manual operation of the valve closure means that control the flow of air through the air vent and flow diverting conduit.
Claim 6
Dependent Claim
13 words
The apparatus of claim 1 wherein the valve closure structure comprises a float.
Claim 7
Independent Claim
217 words
An apparatus comprising the combination of a wide mouth container and improved liquid proportioning and dispensing device wherein the proportioning and dispensing device consists of a main conduit, a venturi in said main conduit for effecting a pressure differential determining high and low pressure sides thereof during the flow of liquid therethrough, a flow-diverting conduit connected with the high pressure side of the main conduit and adapted to supply a diverted flow of liquid from the said main conduit to the container, a conduit connected with the throat portion of the venturi in the said main conduit, a jet having an orifice inlet and a passage of sufficient diameter relative to the said orifice, said jet comprising the inlet end portion of said flow-diverting conduit, said orifice being of a predetermined ratio relative to the venturi throat portion and being adapted to afford a substantially fixed ratio through a wide range of pressures and flows in the main conduit, a container closure member having a base equipped with a suitable air vent opening and with a pivoted rod member designed to support valve closure structure comprising a valve closure member designed to close the said air vent when the flow diverting conduit is open to allow closure of the flow-diverting conduit when the air vent is open.
Claim 8
Independent Claim
217 words
An apparatus comprising the combination of a wide mouth container and improved liquid proportioning and dispensing device wherein the proportioning and dispensing device consists of a main conduit, a venturi in said main conduit for effecting a pressure differential determining high and low pressure sides thereof during the flow of liquid therethrough, a flow-diverting conduit connected with the high pressure side of the main conduit and adapted to supply a diverted flow of liquid from the said main conduit to the container, a conduit connected with the throat portion of the venturi in the said main conduit, a jet having an orifice inlet and a passage of sufficient diameter relative to the said orifice, said jet comprising the inlet end portion of said flow-diverting conduit, said orifice being of a predetermined ratio relative to the venturi throat portion and being adapted to afford a substantially fixed ratio through a wide range of pressures and flows in the main conduit, a container closure member having a base equipped with a suitable air vent opening and with a pivoted rod member designed to support valve closure structure comprising a valve closure member designed to close the said air vent when the flow diverting conduit is open to allow closure of the flow-diverting conduit when the air vent is open.
Claim 9
Dependent Claim
22 words
The apparatus of claim 6 wherein the said metering jet is removable and replacable to permit predetermined changes in the proportioning concentration.
Claim 10
Dependent Claim
34 words
The apparatus of claim 6 wherein the conduit connected with the throat portion of the venturi is equipped with a plurality of small orifices at or near its lower end to facilate mixing constituents.
Claim 11
Dependent Claim
51 words
The apparatus of claim 6 wherein the valve closure member that is designed to close the air vent is fitted with a manually operable pull member so as to allow manual operation of the valve closure means that control the flow of air through the air vent and flow diverting conduit.
Claim 12
Dependent Claim
13 words
The apparatus of claim 6 wherein the valve closure structure comprises a float.
Claim 13
Dependent Claim
26 words
The apparatus of claim 6 wherein the conduit connected with the throat portion of the venturi has a number of small orifices at its lower end.
Claim 14
Independent Claim
212 words
An apparatus of comprising the combination of a wide mouth container and an improved liquid proportioning and dispensing device wherein the proportioning and dispensing device consists of a main conduit, a venturi in said main conduit for effecting a pressure differential determining high and low pressure sides thereof during the flow of liquid therethrough, a flow-diverting conduit connected with the high pressure side of the main conduit and adapted to supply a diverted flow of liquid from the said main conduit to the container, a conduit connected with the throat portion of the venturi in the said main conduit, a metering jet having an orifice inlet and a passage of sufficient diameter relative to said orifice, said metering jet comprising the inlet end portion of said flow-diverting conduit, said orifice being of a predetermined ratio relative to the venturi throat portion, the relationship of the said orifice to the said venturi throat portion being adapted to afford a substantially fixed ratio through a wide range of pressures and flows in the said main conduit, a header adapted for attachment to said container, wherein air vent means is provided and equipped with float valve mechanism that may be manually actuated, said mechanism equipped with valve support structure extending through the air vent means.
Claim 15
Independent Claim
212 words
An apparatus of comprising the combination of a wide mouth container and an improved liquid proportioning and dispensing device wherein the proportioning and dispensing device consists of a main conduit, a venturi in said main conduit for effecting a pressure differential determining high and low pressure sides thereof during the flow of liquid therethrough, a flow-diverting conduit connected with the high pressure side of the main conduit and adapted to supply a diverted flow of liquid from the said main conduit to the container, a conduit connected with the throat portion of the venturi in the said main conduit, a metering jet having an orifice inlet and a passage of sufficient diameter relative to said orifice, said metering jet comprising the inlet end portion of said flow-diverting conduit, said orifice being of a predetermined ratio relative to the venturi throat portion, the relationship of the said orifice to the said venturi throat portion being adapted to afford a substantially fixed ratio through a wide range of pressures and flows in the said main conduit, a header adapted for attachment to said container, wherein air vent means is provided and equipped with float valve mechanism that may be manually actuated, said mechanism equipped with valve support structure extending through the air vent means.
References Cited (Backward Citations)
US2425070A
Cited
US2613994A
Cited
US2856234A
Cited
US2737414A
Cited
US2944561A
Cited
US3926370A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-16 | 1981-07-18 | 1982-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-16 | 1985-07-18 | 1986-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-16 | 1989-07-18 | 1990-01-17 | $7700.00 | Window Closed / Lapsed |