US5090440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Line cleaning apparatus
Assignee: Legris Inc
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Filing: 1990-10-26
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Granted: 1992-02-25
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Expires: 2010-10-26
Abstract
Abstract An apparatus for cleaning fluid lines is disclosed. This apparatus contains a fluid manifold, a valve, and a line connecting said fluid manifold and said valve. The valve used in the apparatus contains at least two input ports, at least two output ports, means responsive to fluid pressure for closing off the flow of liquid from a first of said ports, and means responsive to fluid pressure for opening the flow of liquid from a second of said ports.
Inventors
- 👤 Jean Ladouceur
- 👤 Kenneth H. Podmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:10
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/032; B08B9/0321; B08B9/0323; B67; B67D; B67D1/00; B67D1/07; B67D1/08; B67D1/0829; B67D1/0831; F; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/16; B67D2210/00; B67D2210/00028; B67D2210/00047; B67D2210/0006; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127; Y10T137/4238; Y10T137/4245; Y10T137/4259; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7879; Y10T137/7888; Y10T137/7891
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
279 words
A beverage delivery system for delivering beverage for a beverage source through conduits to a dispenser, wherein said beverage delivery system is comprised of a beverage container, a dispensing outlet, a source of compressed gas, means for connecting said compressed gas to said beverage container, a source of pressurized water, a fluid manifold comprised of an input port and an output port, a flapper valve, and means for connecting said input port of said fluid manifold to said source of pressurized water, wherein: (a) said fluid manifold is comprised of three orifices; (b) at least about 90 weight percent of the material in each of said fluid manifold, said flapper valve, and said line is comprised of nonmetallic material; (c) said flapper valve is comprised of a first input port, a second input port, an output port, a first resilient flapper comprised of a first movable flap, means for disposing said first movable flap over said first input port of said flapper valve, a second resilient flapper comprised of a second movable flap, means for disposing said second movable flap over said second input port of said flapper valve, means responsive to fluid pressure for moving said first flap away from said first input port of said flapper valve, and means responsive to fluid pressure for moving said second flap away from said second input port of said flapper valve; (d) said first input port of said flapper valve is connected to said output port of said fluid manifold; (e) said second input port of said flapper valve is connected to said beverage source; and (f) said output port of said flapper valve is connected to said dispensing outlet.
Claim 2
Dependent Claim
279 words
A beverage delivery system for delivering beverage for a beverage source through conduits to a dispenser, wherein said beverage delivery system is comprised of a beverage container, a dispensing outlet, a source of compressed gas, means for connecting said compressed gas to said beverage container, a source of pressurized water, a fluid manifold comprised of an input port and an output port, a flapper valve, and means for connecting said input port of said fluid manifold to said source of pressurized water, wherein: (a) said fluid manifold is comprised of three orifices; (b) at least about 90 weight percent of the material in each of said fluid manifold, said flapper valve, and said line is comprised of nonmetallic material; (c) said flapper valve is comprised of a first input port, a second input port, an output port, a first resilient flapper comprised of a first movable flap, means for disposing said first movable flap over said first input port of said flapper valve, a second resilient flapper comprised of a second movable flap, means for disposing said second movable flap over said second input port of said flapper valve, means responsive to fluid pressure for moving said first flap away from said first input port of said flapper valve, and means responsive to fluid pressure for moving said second flap away from said second input port of said flapper valve; (d) said first input port of said flapper valve is connected to said output port of said fluid manifold; (e) said second input port of said flapper valve is connected to said beverage source; and (f) said output port of said flapper valve is connected to said dispensing outlet.
Claim 3
Dependent Claim
20 words
The beverage delivery system as recited in claim 1, wherein said flapper valve is comprised of at least one gasket.
Claim 4
Dependent Claim
14 words
The beverage delivery system as recited in claim 2, wherein said gasket is elastomeric.
Claim 5
Dependent Claim
20 words
The beverage delivery system as recited in claim 1, wherein said flapper valve is comprised of at least two gaskets.
Claim 6
Dependent Claim
16 words
The beverage delivery system as recited in claim 4, wherein each of said gaskets is elastomeric.
Claim 7
Dependent Claim
25 words
The beverage delivery system as recited in claim 1, wherein each of said flappers is comprised of two substantially concentric annular portions of elastomeric material.
Claim 8
Dependent Claim
25 words
The beverage delivery system as recited in claim 1, wherein each of said flappers is comprised of a projection adapted to fit within a hole.
Claim 9
Dependent Claim
28 words
The beverage delivery system as recited in claim 7, wherein said flapper valve is comprised of at least one orifice adapted to receive said projection on said flapper.
Claim 10
Dependent Claim
35 words
The beverage delivery system as recited in claim 8, wherein said flapper valve is comprised of at least two orifices, each one of which is adapted to receive one of said projections on said flappers.
Claim 11
Dependent Claim
29 words
The beverage delivery system as recited in claim 1, wherein said system is comprised of a gas manifold which comprises at least about 90 weight percent of nonmetallic material.
Claim 12
Dependent Claim
24 words
The beverage delivery system as recited in claim 1, wherein at least about 90 weight percent of said fluid manifold is comprised of polyethylene.
Claim 13
Dependent Claim
24 words
The beverage delivery system as recited in claim 1, wherein at least about 90 weight percent of said flapper valve is comprised of polyethylene.
Claim 14
Dependent Claim
25 words
The beverage delivery system as recited in claim 5, wherein each of said flappers is comprised of two substantially concentric annular portions of elastomeric material.
Claim 15
Dependent Claim
25 words
The beverage delivery system as recited in claim 13, wherein each of said flappers is comprised of a projection adapted to fit within a hole.
Claim 16
Dependent Claim
28 words
The beverage delivery system as recited in claim 14, wherein said flapper valve is comprised of at least one orifice adapted to receive said projection on said flapper.
Claim 17
Dependent Claim
35 words
The beverage delivery system as recited in claim 15, wherein said flapper valve is comprised of at least two orifices, each one of which is adapted to receive one of said projections on said flappers.
Claim 18
Dependent Claim
29 words
The beverage delivery system as recited in claim 16, wherein said system is comprised of a gas manifold which comprises at least about 90 weight percent of nonmetallic material.
Claim 19
Dependent Claim
24 words
The beverage delivery system as recited in claim 17, wherein at least about 90 weight percent of said fluid manifold is comprised of polyethylene.
Claim 20
Dependent Claim
24 words
The beverage delivery system as recited in claim 18, wherein at least about 90 weight percent of said flapper valve is comprised of polyethylene.
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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) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |