Patent US3640319A successfully refreshed from Google Patents.
US3640319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum actuated automatic transfer device
Assignee: Individual
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Filing: 1969-08-21
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Granted: 1972-02-08
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Expires: 1989-08-21
Abstract
Abstract A transfer device for filling the fuel tank of a vehicle using a vacuum source such as the intake manifold of an internal combustion engine as the driving force. The transfer device forces the fuel into the fuel tank until the tank is full, at which time a buoyant member connected to a pivot arm actuates a valve to close off the vacuum line. The valve and buoyant member are in separate chambers of the transfer device so that fuel never contacts the valve. The pivot arm arrangement for actuating the valve assures dependable operation since both the valve and pivot pin are free from contamination by fuel sediments.
Inventors
- 👤 Kenneth O Hougen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:53
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/18; F16K21/20; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7485
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
322 words
A fluid transfer device for filling the fuel tank of a vehicle, said transfer device designed to be mounted at the neck of said tank, comprising: a vacuum source; a hollow body constructed to engage and hermetically seal said tank neck; a first conduit mounted on said body and disposed partially within said tank, one end of said conduit opening into said tank, the other end connected to a source of fuel to be transferred into said tank; a partition separating said body into a buoyant member chamber and a valve chamber said valve chamber being maintained free of fuel by said partition; a second conduit mounted on said body and disposed partially within said tank, one end of said second conduit opening into said tank, the other end opening into said buoyant member chamber; a third conduit connecting said valve chamber to said vacuum source; an arm, pivotally mounted within said hollow body; a buoyant member mounted on said arm, disposed within said buoyant member chamber; a valve seal mounted on said arm within said valve chamber, operable to close off said third conduit when said arm pivots, whereby said vacuum source draws fluid into said tank through said first conduit until fluid flowing through said second conduit fills said buoyant member chamber to raise said buoyant member and move said valve seal, thereby closing off said third conduit; and a throttling orifice fluidly connecting said hollow body to said tank so that the pressure in said hollow body is lower than that in said tank when said third conduit is open causing fuel to flow into said buoyant mEmber chamber through said second conduit when the fuel reaches the extremity of said second conduit in said tank, said orifice also effective to allow fuel to flow out of said buoyant member chamber through said second conduit when said third conduit is closed by venting said hollow body to said tank.
Claim 2
Dependent Claim
322 words
A fluid transfer device for filling the fuel tank of a vehicle, said transfer device designed to be mounted at the neck of said tank, comprising: a vacuum source; a hollow body constructed to engage and hermetically seal said tank neck; a first conduit mounted on said body and disposed partially within said tank, one end of said conduit opening into said tank, the other end connected to a source of fuel to be transferred into said tank; a partition separating said body into a buoyant member chamber and a valve chamber said valve chamber being maintained free of fuel by said partition; a second conduit mounted on said body and disposed partially within said tank, one end of said second conduit opening into said tank, the other end opening into said buoyant member chamber; a third conduit connecting said valve chamber to said vacuum source; an arm, pivotally mounted within said hollow body; a buoyant member mounted on said arm, disposed within said buoyant member chamber; a valve seal mounted on said arm within said valve chamber, operable to close off said third conduit when said arm pivots, whereby said vacuum source draws fluid into said tank through said first conduit until fluid flowing through said second conduit fills said buoyant member chamber to raise said buoyant member and move said valve seal, thereby closing off said third conduit; and a throttling orifice fluidly connecting said hollow body to said tank so that the pressure in said hollow body is lower than that in said tank when said third conduit is open causing fuel to flow into said buoyant mEmber chamber through said second conduit when the fuel reaches the extremity of said second conduit in said tank, said orifice also effective to allow fuel to flow out of said buoyant member chamber through said second conduit when said third conduit is closed by venting said hollow body to said tank.
Claim 3
Dependent Claim
44 words
A transfer device as defined in claim 1 wherein said arm is pivotally mounted upon a pin, said pin being attached to said body in said valve chamber, and thus free of contact with liquids in said container or in said buoyant member chamber.
Claim 4
Dependent Claim
109 words
A fluid transfer device for filling a closed container with fluid comprising: a container; means for evacuating said container; means for connecting said container to a source of said fluid; means for selectively deactivating said means for evacuating when said fluid in said container reaches a predetermined level, said deactivating means being located outside said container in a separate chamber which becomes filled with fluid when said fluid in said container reaches a said predetermined level; and a throttling member connecting said container to said chamber which allows said fluid in said chamber to flow into said container while said means for evacuating is deactivated by said deactivating means.
Claim 5
Dependent Claim
109 words
A fluid transfer device for filling a closed container with fluid comprising: a container; means for evacuating said container; means for connecting said container to a source of said fluid; means for selectively deactivating said means for evacuating when said fluid in said container reaches a predetermined level, said deactivating means being located outside said container in a separate chamber which becomes filled with fluid when said fluid in said container reaches a said predetermined level; and a throttling member connecting said container to said chamber which allows said fluid in said chamber to flow into said container while said means for evacuating is deactivated by said deactivating means.
Claim 6
Dependent Claim
96 words
A fluid transfer device as defined in claim 3 wherein said selectively deactivating means is located above said container and wherein said throttling member comprises a conduit, one end of which is in fluid communication with said deactivating means and the other end of which opens into said container, the diameter of said conduit being small enough to produce a pressure differential between said container and said chamber when said means for evacuating is not deactivated, thereby allowing said chamber to become filled with said fluid when said fluid in said container reaches said predetermined level.
Claim 7
Dependent Claim
111 words
A transfer device as defined in claim 4 additionally comprising: a hollow body which includes said separate chamber, said chamber having first and second chamber portions, and a partition separating the lower portions of said chamber portions and wherein said deactivating means comprises: a pivot arm which extends between said first and second chamber portions above said partition and which is rotationally mounted in said second chamber portion; a buoyant member attached to said pivot arm in said first chamber portion, and valve means mounted on said pivot arm in said second chamber portion, said valve means operable to deactivate said evacuating means when said buoyant member rotates said pivot arm.
Claim 8
Dependent Claim
167 words
A transfer device for filling a closed container with liquid comprising: a body having a hollow chamber which is separated from said container; an evacuating means operable to lower the pressure within said container; means for controlling said evacuating means, said controlling means including four parts, one of which comprises a float which contacts liquid in said hollow chamber, said liquid being drawn into said chamber from said container only after said liquid in said container reaches a predetermined level in said container; the second of which comprises a sealing member connected to said evacuating means, the third of which comprises means for isolating the liquid in said container and said chamber from contact with said sealing member, and the fourth of which comprises means for allowing fluid to flow from said chamber to said container when said sealing member is sealed, said controlling means responsive to the level of said liquid in said chamber, and a conduit for connecting said container to a source of liquid.
Claim 9
Dependent Claim
167 words
A transfer device for filling a closed container with liquid comprising: a body having a hollow chamber which is separated from said container; an evacuating means operable to lower the pressure within said container; means for controlling said evacuating means, said controlling means including four parts, one of which comprises a float which contacts liquid in said hollow chamber, said liquid being drawn into said chamber from said container only after said liquid in said container reaches a predetermined level in said container; the second of which comprises a sealing member connected to said evacuating means, the third of which comprises means for isolating the liquid in said container and said chamber from contact with said sealing member, and the fourth of which comprises means for allowing fluid to flow from said chamber to said container when said sealing member is sealed, said controlling means responsive to the level of said liquid in said chamber, and a conduit for connecting said container to a source of liquid.
Claim 10
Dependent Claim
67 words
A transfer device as defined in claim 6 wherein said controlling means further comprises: an arm, pivotally mounted within said chamber; said float connected to pivot said arm as the level of said liquid rises in said container, and said sealing member connected to said arm, isolated from sAid liquid, and positioned to prevent operation of said evacuating means when said arm pivots through a predetermined angle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |