US3608828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid spray applicator
Assignee: Individual
•
Filing: 1969-03-25
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Granted: 1971-09-28
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Expires: 1989-03-25
Abstract
Abstract A spray applicator is provided having a housing body within which rustproofing material, such as paint, an asphalt mixture, etc., is introduced under pressure as a liquid and is moved under centrifugal force to cause rotation of an impeller carried within an operating chamber of the housing and to cause a corresponding rotation of a coaxial, forwardly projecting spray nozzle wand. The wand is inserted through a drilled hole or other opening into a hidden area of a vehicle body for applying the liquid to its surfaces. Radial blades of the impeller having a spaced relation within an enclosing wall of the chamber, and a pair of opposite blades may have a closer spaced relation than others for varying the speed of rotation and the liquid spray.
Inventors
- 👤 Gerald Tokar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:45
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B3/0429
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
222 words
In a spray device for applying rustproofing liquid to the surfaces of hidden wall areas of a vehicle and the like wherein the liquid is supplied under positive pressure to the device, a housing body defining a chamber area therewithin, an intermediate annular wall dividing said chamber area into an annular outer liquid-receiving chamber and a circular central inner operating chamber, an impeller rotatably carried by said body within said inner operating chamber and having a hub provided with radially projecting blades, an inlet portion extending directly through said housing body into and in a substantially tangential flow relation with respect to said outer chamber for flowing liquid in a circular path therealong, passageway portions extending through said intermediate wall in a substantially tangential relation to direct liquid from said outlet chamber against the blades of said impeller within said inner operating chamber for rotating said impeller therewithin, a hollow longitudinal outlet member extending coaxially inwardly through said hub for rotation therewith being directly open at an inlet inner end portion thereof axially centrally to said operating chamber to directly receive liquid therefrom during the rotation of said impeller, said outlet member projecting forwardly outwardly in a sealed-off relation through said body, and a spray nozzle carried by an outer end portion of said outleT member for spraying the liquid on surfaces.
Claim 2
Dependent Claim
222 words
In a spray device for applying rustproofing liquid to the surfaces of hidden wall areas of a vehicle and the like wherein the liquid is supplied under positive pressure to the device, a housing body defining a chamber area therewithin, an intermediate annular wall dividing said chamber area into an annular outer liquid-receiving chamber and a circular central inner operating chamber, an impeller rotatably carried by said body within said inner operating chamber and having a hub provided with radially projecting blades, an inlet portion extending directly through said housing body into and in a substantially tangential flow relation with respect to said outer chamber for flowing liquid in a circular path therealong, passageway portions extending through said intermediate wall in a substantially tangential relation to direct liquid from said outlet chamber against the blades of said impeller within said inner operating chamber for rotating said impeller therewithin, a hollow longitudinal outlet member extending coaxially inwardly through said hub for rotation therewith being directly open at an inlet inner end portion thereof axially centrally to said operating chamber to directly receive liquid therefrom during the rotation of said impeller, said outlet member projecting forwardly outwardly in a sealed-off relation through said body, and a spray nozzle carried by an outer end portion of said outleT member for spraying the liquid on surfaces.
Claim 3
Dependent Claim
56 words
In a spray device as defined in claim 1, said passageway portions comprising oppositely positioned pairs, and each passageway portion of each pair being in a closely spaced relation with respect to the other passageway portion of the same pair; and said intermediate wall being closed off therealong between said oppositely positioned pairs of passageway portions.
Claim 4
Dependent Claim
81 words
In a spray device as defined in claim 2 said blades all having a radially inwardly spaced-apart relation with respect to said intermediate wall for free rotation within said inner chamber, and opposite pair of said blades having a greater radial outward extent than the other of said blades for providing a momentary increase of rotative movement of said impeller within opposite circumferential segments of said intermediate wall that include portions thereof within which said pairs of passageway portions are located.
Claim 5
Dependent Claim
55 words
In a spray device as defined in claim 1, said passageway portions being located in a substantially equally spaced-apart relation along said intermediate wall for introducing the liquid substantially uniformly about said hub, and each of said blades terminating at its outer end portion in an inwardly spaced relation with respect to said intermediate wall.
Claim 6
Dependent Claim
46 words
In a spray device as defined in claim 1, an adjustable element operatively carried by said body for coaxial movement with respect to said inlet inner end portion of said hollow member to regulate flow of the liquid from said operating chamber into said hollow member.
Claim 7
Dependent Claim
42 words
In a spray device as defined in claim 5, said adjustable element being removable for closing off said first mentioned inlet portion and for providing an alternative direct inlet portion through said body to said open base portion of said hollow member.
Claim 8
Dependent Claim
47 words
In a spray device as defined in claim 1, a threaded boltlike element removably extending through said body in alignment with respect to said open base portion of said hollow member, whereby when said element is removed and alternative inlet portion for the liquid will be provided.
Claim 9
Dependent Claim
63 words
In a spray device as defined in claim 1, said housing body comprising a lower cup-shaped part and an upper complementary cup-shaped part having sidewalls threadably removably engaging each other and defining said inner operating chamber, and a central annular recess portion along the sidewall of said upper housing part and defining said inlet chamber with the sidewall of said lower housing part.
Claim 10
Dependent Claim
55 words
In a spray device as defined in claim 8, bushing and fluid sealing parts carried centrally of said upper housing part, said hollow member extending rotatably through said bushing and fluid sealing parts and rotatably suspending said impeller within said operating chamber, and means removably mounting said hollow member with respect to said bushing part.
Claim 11
Dependent Claim
63 words
In a spray device as defined in claim 1, a longitudinally extending tubular wand member removably secured at it back end to an outer end of said hollow member to project forwardly therefrom, said wand member having a forward end wall comprising said spray nozzle, and a longitudinally extending narrow slot portion along said forward end wall for spraying the liquid outwardly therefrom.
Claim 12
Dependent Claim
38 words
In a spray device as defined in claim 11, said forward end wall being of flattened and crimped shape along said slot portion, and said slot portion being open to the end of and to opposite sides thereof.
Claim 13
Dependent Claim
71 words
In a spray device as defined in claim 1, a tubular forwardly extending wand member removably secured at its back end to an outer end of said hollow member to project therefrom, said wand member having a forward end wall comprising said spray nozzle, a plurality of forwardly sloped holes through said forward end wall in a longitudinally and peripherally spaced-apart positioning thereabout for spraying the liquid from said wand member.
Claim 14
Dependent Claim
65 words
In a spray device as defined in claim 1, said blades all having a radially spaced-apart relation with respect to said intermediate wall for nonfrictional rotation with respect thereto, and at least one of said blades having a closer spaced relation with respect to said intermediate wall than another of said blades for varying the flow from said nozzle during the rotation of said impeller.
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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |