US3640630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressurized continuous flow liquid applicator with shutoff valve
Assignee: APPLICATIONS UNLIMITED Inc
•
Filing: 1970-06-26
•
Granted: 1972-02-08
•
Expires: 1990-06-26
Abstract
Abstract A system for the application of liquid to a surface, such as by painting, washing and waxing, in which the liquid source is maintained under a constant superatmospheric pressure and a flexible cable is connected between the pressurized liquid source and the liquid applicator. A shutoff valve can selectively pinchoff the cable in order to cut off the liquid supply to the applicator. The liquid applicator can be fixed or movable to selected positions and may be in the form of a roller.
Inventors
- 👤 Harold L Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:30
CPC Classifications
B; B05; B05C; B05C17/00; B05C17/002; A; A46; A46B; A46B11/00; A46B11/06; A46B11/063; B05C17/02; B05C17/03; B05C17/0308; B05C17/0316; B44; B44D; B44D3/00; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/0805; B05B9/0811; B05B9/0816
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
A liquid application system having a flow of pressurized liquid therein comprising: a liquid applicator, a hollow handle for said applicator, a closed container having an outer portable canister provided with an air tight cover and a pressuring device and an inner receptacle for holding the pressurized liquid to be applied, a flexible tube communicating at one end with said liquid applicator and communicating at the other end with said closed container, a valve device operative with said flexible tube for controlling the flow of the pressurized fluid therethrough from said closed container to said liquid applicator, said canister being provided with a yieldable element in the interior bottom surface thereof upon which said inner receptacle rests, and a relief vent in said closed container so positioned that upon the pressuring of said closed container above a predetermined amount of pressure said relief vent becomes operative into an internal portion of said outer portable canister.
Claim 2
Dependent Claim
155 words
A liquid application system having a flow of pressurized liquid therein comprising: a liquid applicator, a hollow handle for said applicator, a closed container having an outer portable canister provided with an air tight cover and a pressuring device and an inner receptacle for holding the pressurized liquid to be applied, a flexible tube communicating at one end with said liquid applicator and communicating at the other end with said closed container, a valve device operative with said flexible tube for controlling the flow of the pressurized fluid therethrough from said closed container to said liquid applicator, said canister being provided with a yieldable element in the interior bottom surface thereof upon which said inner receptacle rests, and a relief vent in said closed container so positioned that upon the pressuring of said closed container above a predetermined amount of pressure said relief vent becomes operative into an internal portion of said outer portable canister.
Claim 3
Dependent Claim
26 words
A liquid application system as claimed in claim 1 wherein said hollow handle is constructed to receive and mount alternately a plurality of different-shaped liquid applicators.
Claim 4
Dependent Claim
24 words
A liquid application system as claimed in claim 1 wherein said valve device is a spring-operated member which normally pinchs said flexible tube closed.
Claim 5
Dependent Claim
47 words
A liquid application system as claimed in claim 1 wherein said liquid applicator is a spongelike material, and means embedded in said spongelike material for directing said liquid to selected locations in said spongelike material whereby a smooth application of liquid to a selected surface is achieved.
Claim 6
Dependent Claim
103 words
A liquid application system as claimed in claim 1 wherein a space at atmospheric pressure is located between said closed contAiner and inner receptacle, said space being normally closed by a projection on the outer surface of said inner receptacle engaging the adjacent wall of said closed container, said inner receptacle and the projection thereon being movable to a position upon the attainment of a predetermined pressure in said inner receptacle whereby said projection is removed from engagement with said adjacent wall resulting in communication between the pressurized interior of said inner receptacle and said space in order to relieve said inner receptacle.
Claim 7
Dependent Claim
66 words
A liquid application system as claimed in claim 5 further comprising a yieldable support and said inner receptacle rests on said yieldable support and when moved in one direction against said yieldable support, by means of pressurized fluid in said inner receptacle said projection on the inner receptacle is moved to a position whereby the same is spaced from the adjacent wall of said closed container.
Claim 8
Dependent Claim
32 words
A liquid application system as claimed in claim 1 wherein said liquid applicator constitutes a spongelike material, and a squeegee device, and means mounting both said spongelike material and said squeegee device.
Claim 9
Dependent Claim
61 words
A liquid applicator system as claimed in claim 1 wherein said handle is rectangular-shaped in cross section, and a plurality of liquid applicators, each having a fitting provided with an external shape corresponding to the shape of said rectangular cross section of said handle to thereby selectively interfit said fitting in said handle, and said flexible tube passing through said handle.
References Cited (Backward Citations)
US1535304A
Cited
GB408722A
Cited
US3079628A
Cited
US3195170A
Cited
US3143756A
Cited
US3304573A
Cited
US3503691A
Cited
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 |