US3674205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple color paint spray system
Assignee: DeVilbiss Co
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Filing: 1971-05-14
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Granted: 1972-07-04
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Expires: 1991-05-14
Abstract
Abstract A multiple color paint spray system for sequentially supplying selected ones of a plurality of colors to a single spray outlet. A pair of parallel paint manifolds are each connected to the sources of a plurality of colored paints and a solvent. Both manifolds are connected to a single spray gun through a two position valve or to a group of guns each having its two position valve. While paint of one color is being supplied to the outlet from one manifold, the other manifold is conditioned by a solvent purge and filled with the next color to be supplied so that color change to the spray gun or guns may be rapidly effected by switching the two position valve or all the valves simultaneously from one manifold to the other. In a second embodiment, a fourway valve is used to simultaneously supply paint of one color to the gun from one manifold to carry the solvent purge from the second manifold to a disposal source.
Inventors
- 👤 Erhard Kock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:43
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/14; B05B12/149; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4245; Y10T137/4259
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
185 words
A fluid control system for supplying a selected one of a plurality of fluids to a single outlet with means for rapidly changing from one selected fluid to another comprising, in combination, a single fluid outlet, a first fluid manifold having a manifold outlet and connected to the source of each of said plurality of fluids, a second manifold having a manifold outlet and connected to said source of each of said plurality of fluids, a plurality of inlet valves for individually controlling fluid flow from each fluid source into each of said manifolds, a manifold selector valve operably connecting either said first or said second manifold outlets to said single fluid outlet, a first and a second dump valve positioned, respectively, in said first and second manifold outlets upstream of said manifold selector valve whereby, while one fluid is supplied to said single fluid outlet through said first manifold, said second manifold can be preconditioned to supply another fluid by opening said second dump valve and filling said second manifold and its manifold outlet up to said open dump valve with said other fluid.
Claim 2
Dependent Claim
185 words
A fluid control system for supplying a selected one of a plurality of fluids to a single outlet with means for rapidly changing from one selected fluid to another comprising, in combination, a single fluid outlet, a first fluid manifold having a manifold outlet and connected to the source of each of said plurality of fluids, a second manifold having a manifold outlet and connected to said source of each of said plurality of fluids, a plurality of inlet valves for individually controlling fluid flow from each fluid source into each of said manifolds, a manifold selector valve operably connecting either said first or said second manifold outlets to said single fluid outlet, a first and a second dump valve positioned, respectively, in said first and second manifold outlets upstream of said manifold selector valve whereby, while one fluid is supplied to said single fluid outlet through said first manifold, said second manifold can be preconditioned to supply another fluid by opening said second dump valve and filling said second manifold and its manifold outlet up to said open dump valve with said other fluid.
Claim 3
Dependent Claim
23 words
The fluid control system of claim 1 which further includes means for purging said manifolds with air to remove all other fluids therefrom.
Claim 4
Dependent Claim
66 words
The fluid control system of claim 1 which includes means to close the fluid inlet valve to said first manifold to terminate flow of one fluid and to open another inlet valve to initiate flow of another fluid in said first manifold for a predetermined time prior to shifting said manifold selector valve to initiate fluid flow from said second manifold to said single fluid outlet.
Claim 5
Dependent Claim
32 words
The fluid control system of claim 3 which further includes means for opening said first dump valve following movement of said manifold selector valve to initiate fluid flow from said second manifold.
Claim 6
Dependent Claim
177 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a pair of paint manifolds each having a manifold outlet and each connected to the source of each of a plurality of paint colors, a plurality of paint inlet valves for individually controlling paint flow of each color paint into each of said pair of paint manifolds, a manifold selector valve operably connecting one or the other of said manifold outlets to said spray gun, and a dump valve in each of said manifold outlets upstream of said manifold selector valve whereby, while a first color paint is supplied to said spray gun through one manifold, the other of said manifolds can be preconditioned to supply another color paint by opening said dump valve in said other manifold outlet and filling said other manifold and said other manifold outlet up to said open dump valve with said other color paint.
Claim 7
Dependent Claim
177 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a pair of paint manifolds each having a manifold outlet and each connected to the source of each of a plurality of paint colors, a plurality of paint inlet valves for individually controlling paint flow of each color paint into each of said pair of paint manifolds, a manifold selector valve operably connecting one or the other of said manifold outlets to said spray gun, and a dump valve in each of said manifold outlets upstream of said manifold selector valve whereby, while a first color paint is supplied to said spray gun through one manifold, the other of said manifolds can be preconditioned to supply another color paint by opening said dump valve in said other manifold outlet and filling said other manifold and said other manifold outlet up to said open dump valve with said other color paint.
Claim 8
Dependent Claim
25 words
The multiple color spray paint system of claim 5 which further includes means for purging said manifolds with air to remove all other fluids therefrom.
Claim 9
Dependent Claim
97 words
The multiple color spray paint system of claim 5 which further includes a source of paint solvent connected to each of said manifolds through a pair of solvent inlet valves and means to close the paint inlet valve to said one manifold to terminate flow of said first color paint and to open the solvent inlet valve to said one manifold to initiate flow of solvent in said one manifold for a predetermined time prior to shifting said manifold selector valve to initiate flow of said other color paint from said other manifold to said spray gun.
Claim 10
Dependent Claim
40 words
The multiple color spray paint system of claim 7 which Further includes means for opening said dump valve of said one manifold after shifting said manifold selector valve to initiate flow of said other color paint from said other manifold.
Claim 11
Independent Claim
169 words
A method of supplying a selected one of a plurality of color paints and for shifting from such selected one paint to another selected paint and supplying it to a paint spray gun from a pair of paint manifolds each having a valved connection to each of said color paint sources and a valved connection to a source of solvent with said manifolds alternately connected to said gun through a manifold selector valve and with each manifold having a dump valve upstream of said manifold selector valve comprising the steps of sequentially (1) closing the valve supplying said selected one color to the one manifold connected to said spray gun and opening the solvent valve to that manifold to initiate flow of solvent through that manifold toward said spray gun, (2) moving said manifold selector valve to connect said other manifold to said spray gun to terminate flow of solvent toward said spray gun, (3) and opening the dump valve of said one manifold to direct solvent flow therethrough.
Claim 12
Independent Claim
169 words
A method of supplying a selected one of a plurality of color paints and for shifting from such selected one paint to another selected paint and supplying it to a paint spray gun from a pair of paint manifolds each having a valved connection to each of said color paint sources and a valved connection to a source of solvent with said manifolds alternately connected to said gun through a manifold selector valve and with each manifold having a dump valve upstream of said manifold selector valve comprising the steps of sequentially (1) closing the valve supplying said selected one color to the one manifold connected to said spray gun and opening the solvent valve to that manifold to initiate flow of solvent through that manifold toward said spray gun, (2) moving said manifold selector valve to connect said other manifold to said spray gun to terminate flow of solvent toward said spray gun, (3) and opening the dump valve of said one manifold to direct solvent flow therethrough.
Claim 13
Dependent Claim
54 words
The method of claim 9 which further includes the steps of (4) opening a paint inlet valve to initiate flow of another selected color paint from its source into said one manifold and (5) subsequently closing the dump valve of said one manifold after filling said one manifold with said other selected color paint.
Claim 14
Dependent Claim
178 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a plurality of pressurized sources of color paint, a pressurized source of paint solvent, a pair of paint manifolds each having a common flow passage in communication with each of said paint sources and said solvent source, a plurality of paint inlet valves in each paint manifold for individually controlling flow of paint from said paint sources to said common flow passage of said manifold, a manifold outlet in each manifold at one end of said common flow passage, a solvent inlet valve in each paint manifold at the other end of said common flow passage and upstream of all of said paint inlet valves, a manifold selector valve for alternately connecting one or the other of said manifold outlets to such spray gun and a dump valve between said manifold selector valve and the manifold outlet of each paint manifold.
Claim 15
Dependent Claim
178 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a plurality of pressurized sources of color paint, a pressurized source of paint solvent, a pair of paint manifolds each having a common flow passage in communication with each of said paint sources and said solvent source, a plurality of paint inlet valves in each paint manifold for individually controlling flow of paint from said paint sources to said common flow passage of said manifold, a manifold outlet in each manifold at one end of said common flow passage, a solvent inlet valve in each paint manifold at the other end of said common flow passage and upstream of all of said paint inlet valves, a manifold selector valve for alternately connecting one or the other of said manifold outlets to such spray gun and a dump valve between said manifold selector valve and the manifold outlet of each paint manifold.
Claim 16
Dependent Claim
54 words
The multiple color spray system of claim 11 which further includes means for automatically purging one of said manifolds with solvent through its associated dump valve and for filling it with another selected color paint while said other manifold is supplying paint of a selected color through said manifold selector valve to said gun.
Claim 17
Dependent Claim
48 words
The multiple color spray system of claim 11 which further includes means for opening the dump valve and the solvent inlet valve to the manifold supplying paint to said gun a predetermined time prior to shifting said manifold selector valve to connect said other manifold to said gun.
Claim 18
Dependent Claim
165 words
A fluid control system for supplying a selected one of a plurality of fluids to a single outlet with means for rapidly changing from one selected fluid to another comprising, in combination, a single fluid outlet, a first fluid manifold having a manifold outlet and connected to the source of each of said plurality of fluids, a second manifold having a manifold outlet and connected to said source of each of said plurality of fluids, a plurality of inlet valves for individually controlling fluid flow from each fluid source into each of said manifolds, a four-way selector valve simultaneously operably connecting one of said manifold outlets to said single fluid outlet and the other of said manifold outlets to a waste outlet, whereby, while one fluid is supplied to said single fluid outlet Through said first manifold, said second manifold can be preconditioned to supply another fluid by filling said second manifold and its manifold outlet up to said waste outlet with said other fluid.
Claim 19
Dependent Claim
165 words
A fluid control system for supplying a selected one of a plurality of fluids to a single outlet with means for rapidly changing from one selected fluid to another comprising, in combination, a single fluid outlet, a first fluid manifold having a manifold outlet and connected to the source of each of said plurality of fluids, a second manifold having a manifold outlet and connected to said source of each of said plurality of fluids, a plurality of inlet valves for individually controlling fluid flow from each fluid source into each of said manifolds, a four-way selector valve simultaneously operably connecting one of said manifold outlets to said single fluid outlet and the other of said manifold outlets to a waste outlet, whereby, while one fluid is supplied to said single fluid outlet Through said first manifold, said second manifold can be preconditioned to supply another fluid by filling said second manifold and its manifold outlet up to said waste outlet with said other fluid.
Claim 20
Dependent Claim
23 words
The fluid control system of claim 14 which further includes means for purging said manifolds with air to remove all other fluids therefrom.
Claim 21
Dependent Claim
75 words
The fluid control system of claim 14 which includes means to close the fluid inlet valve to said first manifold to terminate flow of one fluid and to open another inlet valve to initiate flow of another fluid in said first manifold for a predetermined time prior to shifting said four-way selector valve to initiate fluid flow from said second manifold to said single fluid outlet and from said first manifold to said waste outlet.
Claim 22
Dependent Claim
158 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a pair of paint manifolds each having a manifold outlet and each connected to the source of each of a plurality of paint colors, a plurality of paint inlet valves for individually controlling paint flow of each color paint into each of said pair of paint manifolds, a four-way selector valve operably connecting one of said manifold outlets to said spray gun and the other of said manifold outlets to a waste outlet whereby, while a first color paint is supplied to said spray gun through one manifold, the other of said manifolds can be preconditioned to supply another color paint by filling said other manifold and said other manifold outlet up to said waste outlet with said other color paint.
Claim 23
Dependent Claim
158 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a pair of paint manifolds each having a manifold outlet and each connected to the source of each of a plurality of paint colors, a plurality of paint inlet valves for individually controlling paint flow of each color paint into each of said pair of paint manifolds, a four-way selector valve operably connecting one of said manifold outlets to said spray gun and the other of said manifold outlets to a waste outlet whereby, while a first color paint is supplied to said spray gun through one manifold, the other of said manifolds can be preconditioned to supply another color paint by filling said other manifold and said other manifold outlet up to said waste outlet with said other color paint.
Claim 24
Dependent Claim
25 words
The multiple color spray paint system of claim 17 which further includes means for purging said manifolds with air to remove all other fluids therefrom.
Claim 25
Dependent Claim
96 words
The multiple color spray paint system of claim 17 which further includes a source of paint solvent connected to each of said manifolds through a pair of solvent inlet valves and means to close the paint inlet valve to said one manifold to terminate flow of said first color paint and to open the solvent inlet valve to said one manifold to initiate flow of solvent in said one manifold for a predetermined time prior to shifting said four-way valve to initiate flow of said other color paint from said other manifold to said spray gun.
Claim 26
Dependent Claim
176 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a plurality of pressurized sources of color paint, a pressurized source of paint solvent, a pair of paint manifolds each having a common flow passage in communication with each of said paint sources and said solvent source, a plurality of paint inlet valves in each paint manifold for individually controlling flow of paint from said paint sources to said common flow passage of said manifold, a manifold outlet in each manifold at one end of said common flow passage, a solvent inlet valve in each paint manifold at the other end of said common flow passage and upstream of all of said paint inlet valves, a four-way manifold selector valve for alternately connecting one or the other of said manifold outlets to such spray gun and simultaneously connecting the remaining one of said manifold outlets to a waste outlet.
Claim 27
Dependent Claim
176 words
A multiple color spray paint system for supplying to a spray gun a selected paint color from one of a plurality of color paint sources and for rapidly changing from one color to another comprising, in combination, a plurality of pressurized sources of color paint, a pressurized source of paint solvent, a pair of paint manifolds each having a common flow passage in communication with each of said paint sources and said solvent source, a plurality of paint inlet valves in each paint manifold for individually controlling flow of paint from said paint sources to said common flow passage of said manifold, a manifold outlet in each manifold at one end of said common flow passage, a solvent inlet valve in each paint manifold at the other end of said common flow passage and upstream of all of said paint inlet valves, a four-way manifold selector valve for alternately connecting one or the other of said manifold outlets to such spray gun and simultaneously connecting the remaining one of said manifold outlets to a waste outlet.
Claim 28
Dependent Claim
59 words
The multiple color spray system of claim 20 which further includes means for automatically purging one of said manifolds with solvent through said four-way selector valve and said waste outlet and for filling it with another selected color paint while said other manifold is supplying paint of a selected color through said four-way manifold selector valve to said gun.
Claim 29
Independent Claim
155 words
A method of supplying a selected one of a plurality of color paints and for shifting from such selected one paint to another selected paint and supplying it to a paint spray Gun from a pair of paint manifolds each having a valved connection to each of said color paint sources and a valved connection to a source of solvent with said manifolds alternately connected to said gun through a selector valve comprising the steps of sequentially (1) closing the valve supplying said selected one color to the one manifold connected to said spray gun and opening the solvent valve to that manifold to initiate flow of solvent through that manifold toward said spray gun, (2) shifting said manifold selector valve to connect said other manifold to said spray gun and to terminate flow of solvent toward said spray gun and to connect said one manifold to said waste outlet to direct solvent flow therethrough.
Claim 30
Independent Claim
155 words
A method of supplying a selected one of a plurality of color paints and for shifting from such selected one paint to another selected paint and supplying it to a paint spray Gun from a pair of paint manifolds each having a valved connection to each of said color paint sources and a valved connection to a source of solvent with said manifolds alternately connected to said gun through a selector valve comprising the steps of sequentially (1) closing the valve supplying said selected one color to the one manifold connected to said spray gun and opening the solvent valve to that manifold to initiate flow of solvent through that manifold toward said spray gun, (2) shifting said manifold selector valve to connect said other manifold to said spray gun and to terminate flow of solvent toward said spray gun and to connect said one manifold to said waste outlet to direct solvent flow therethrough.
Claim 31
Dependent Claim
116 words
A multiple color paint spraying system comprising, in combination, a first manifold and a second manifold, a plurality of fluid inlet conduits in fluid communication with each of said manifolds, a manifold outlet conduit extending from each of said manifolds to a common selector valve downstream of said manifolds, a paint spray outlet and a waste disposal outlet operably connected to said selector valve, and means for alternately directing the flow of one fluid from one of said fluid inlet conduits through one of said manifolds to said paint spray outlet and the flow of a second fluid from another of said fluid inlet conduits through the other of said manifolds to said waste disposal outlet.
Claim 32
Dependent Claim
116 words
A multiple color paint spraying system comprising, in combination, a first manifold and a second manifold, a plurality of fluid inlet conduits in fluid communication with each of said manifolds, a manifold outlet conduit extending from each of said manifolds to a common selector valve downstream of said manifolds, a paint spray outlet and a waste disposal outlet operably connected to said selector valve, and means for alternately directing the flow of one fluid from one of said fluid inlet conduits through one of said manifolds to said paint spray outlet and the flow of a second fluid from another of said fluid inlet conduits through the other of said manifolds to said waste disposal outlet.
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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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |