US4570855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying apparatus
Assignee: Individual
•
Filing: 1984-04-13
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Granted: 1986-02-18
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Expires: 2004-04-13
Abstract
Abstract An apparatus for spraying both liquid and dry particulate material such as powder. A rectangular housing holds upright cylinders, one for liquid and the other for dry particulate material and each having a one-way check valve at the top for receiving pressurized air and an air pressure gauge above the housing. Coiled flexible hoses extend from the respective cylinders to spray nozzles outside the housing. This entire assembly is stored in a covered carrying case.
Inventors
- 👤 Taylor C. Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:05
CPC Classifications
B; B05; B05B; B05B9/00; B05B9/03; B05B9/04; B05B9/08; B05B9/0805
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
249 words
A spraying apparatus comprising: a housing; a first cylinder for liquid extending upright in said housing and having a top end cap above said housing, a one-way check valve in said end cap for passing pressurized air into said cylinder above the liquid therein; a partition extending cylindrically up inside said housing; a flexible first hose operatively connected to the interior of the first cylinder adjacent its lower end and extending up inside said partition in closely spaced helical turns and passing through the top of said housing, a first discharge nozzle connected to said hose outside said housing; a second cylinder for particulate material such as powder extending upright in said housing, said second cylinder having a reduced diameter segment at its upper end inside said housing, an annular partition extending around said reduced diameter segment of the second cylinder and defining therewith an annular space, a top end cap on said reduced segment of the second cylinder above said housing, a one-way check valve in said last-mentioned end cap for passing pressurized air into said second cylinder above the particulate therein; and a flexible second hose having opposite ends, one of which is located in the interior of the second cylinder at the lower end of the latter, said second hose extending in closely spaced helical turns up inside said annular spaced and passing through the top of said housing, and a second discharge nozzle connected to the opposite end of said second hose outside said housing.
Claim 2
Dependent Claim
249 words
A spraying apparatus comprising: a housing; a first cylinder for liquid extending upright in said housing and having a top end cap above said housing, a one-way check valve in said end cap for passing pressurized air into said cylinder above the liquid therein; a partition extending cylindrically up inside said housing; a flexible first hose operatively connected to the interior of the first cylinder adjacent its lower end and extending up inside said partition in closely spaced helical turns and passing through the top of said housing, a first discharge nozzle connected to said hose outside said housing; a second cylinder for particulate material such as powder extending upright in said housing, said second cylinder having a reduced diameter segment at its upper end inside said housing, an annular partition extending around said reduced diameter segment of the second cylinder and defining therewith an annular space, a top end cap on said reduced segment of the second cylinder above said housing, a one-way check valve in said last-mentioned end cap for passing pressurized air into said second cylinder above the particulate therein; and a flexible second hose having opposite ends, one of which is located in the interior of the second cylinder at the lower end of the latter, said second hose extending in closely spaced helical turns up inside said annular spaced and passing through the top of said housing, and a second discharge nozzle connected to the opposite end of said second hose outside said housing.
Claim 3
Dependent Claim
48 words
An apparatus according to claim 1 and further comprising: a first pressure gauge above said housing operatively connected to said first cylinder to display the air pressure therein; and a second pressure gauge above said housing operatively connected to said second cylinder to display the air pressure therein.
Claim 4
Dependent Claim
50 words
An apparatus according to claim 2 and further comprising: a carrying case holding said housing, said carrying case having a top cover with an opening therein; a lock under said opening; and a door normally closing said opening and operative to be opened manually to provide access to said lock.
Claim 5
Dependent Claim
44 words
An apparatus according to claim 3 and further comprising: a pipe extending down inside said second cylinder and having an inlet opening at its lower end; and means operatively connecting the upper end of said pipe to the lower end of said second hose.
Claim 6
Dependent Claim
22 words
An apparatus according to claim 4 and further comprising: a strainer surrounding said inlet opening at the lower end of said pipe.
Claim 7
Dependent Claim
25 words
An apparatus according to claim 5 and further comprising: a strainer in the upper end of said first cylinder directly below its top end cap.
Claim 8
Dependent Claim
26 words
An apparatus according to claim 1 and further comprising: a pipe extending down inside said second cylinder and having an inlet opening at its lower end.
Claim 9
Dependent Claim
22 words
An apparatus according to claim 7 and further comprising: a strainer surrounding said inlet opening at the lower end of said pipe.
Claim 10
Dependent Claim
25 words
An apparatus according to claim 1 and further comprising: a strainer in the upper end of said first cylinder directly below its top end cap.
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) | 1989-02-17 | 1989-08-19 | 1990-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-17 | 1993-08-19 | 1994-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-17 | 1997-08-19 | 1998-02-18 | $7700.00 | Window Closed / Lapsed |