Patent US3842798A successfully refreshed from Google Patents.
US3842798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shroud for spraying apparatus
Assignee: Rheem Manufacturing Co
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Filing: 1973-01-16
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Granted: 1974-10-22
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Expires: 1993-01-16
Abstract
Abstract A shroud for engagement over the end of a hollow body being sprayed by a head projected progressively into the body, the shroud having a connection to a source of suction and an assembly of baffles and gas passages arranged in a manner and relation such as to draw off fumes and paint mist and result in uniform evacuating gas currents in and around the body end and maintain a balanced condition and uniform application of the sprayed material.
Inventors
- 👤 A Gerlovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:45
CPC Classifications
B; B05; B05B; B05B14/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
80 words
A shroud for engagement over the end of a body being sprayed comprising inner and outer shells radially spaced and having transverse partitions between them to define a fluid space, a suction conduit with an outlet from said fluid space, fluid passage means connecting the area around the body end to said fluid space including a plurality of spaced flow openings through one of said transverse partitions, said openings progressively increasing in size in the direction away from said outlet.
Claim 2
Dependent Claim
80 words
A shroud for engagement over the end of a body being sprayed comprising inner and outer shells radially spaced and having transverse partitions between them to define a fluid space, a suction conduit with an outlet from said fluid space, fluid passage means connecting the area around the body end to said fluid space including a plurality of spaced flow openings through one of said transverse partitions, said openings progressively increasing in size in the direction away from said outlet.
Claim 3
Dependent Claim
87 words
A shroud for engagement over the end of a body being sprayed comprising a main outer shell and a hollow inner smaller shell with a pair of transverse partitions between the shells defining an arc-shaped space between the shells, a suction conduit connected to said space, fluid passage means connecting the area around the body end to said space, and baffle means in said conduit means having a plurality of flow openings progressively increasing in size in the direction away from the outlet to said suction conduit.
Claim 4
Dependent Claim
87 words
A shroud for engagement over the end of a body being sprayed comprising a main outer shell and a hollow inner smaller shell with a pair of transverse partitions between the shells defining an arc-shaped space between the shells, a suction conduit connected to said space, fluid passage means connecting the area around the body end to said space, and baffle means in said conduit means having a plurality of flow openings progressively increasing in size in the direction away from the outlet to said suction conduit.
Claim 5
Dependent Claim
27 words
A shroud in accordance with claim 2 in which said inner shell has a central opening into which the end of the body is adapted to project.
Claim 6
Dependent Claim
34 words
A shroud in accordance with claim 2 in which said baffle means comprises one of said partitions extending transversely of said space between said fluid passage means and the outlet to said suction conduit.
Claim 7
Dependent Claim
38 words
A shroud in accordance with claim 3 in which said fluid passage means and partitions are arranged to direct the fluid through said central opening of the inner shell and then through the partition having the flow passages.
Claim 8
Dependent Claim
35 words
A shroud in accordance with claim 3 in which said fluid passage and partitions are arranged to conduct fluid from around the body end directly through the partition having the flow passages into said space.
Claim 9
Dependent Claim
80 words
A shroud arranged to be positioned at the end of a hollow container body being sprayed interiorly comprising a chamber extending radially outwardly beyond the periphery of the body, a source of suction connected to said chamber, and air conducting passages arranged to direct air longitudinally along the periphery of the outer end of the body and then radially outward into said chamber whereby the air flow prevents the spray material from depositing on the outer surface of the container.
Claim 10
Dependent Claim
80 words
A shroud arranged to be positioned at the end of a hollow container body being sprayed interiorly comprising a chamber extending radially outwardly beyond the periphery of the body, a source of suction connected to said chamber, and air conducting passages arranged to direct air longitudinally along the periphery of the outer end of the body and then radially outward into said chamber whereby the air flow prevents the spray material from depositing on the outer surface of the container.
Claim 11
Dependent Claim
36 words
A shroud in accordance with claim 7 in which said collector chamber comprises an annular chamber extending around the entire periphery of the body with a central opening into which the container body extends during spraying.
Claim 12
Dependent Claim
34 words
A shroud in accordance with claim 7 in which the shroud is mounted for movement relative to the container body for selective positioning adjacent the container body end or in a retracted ineffective position.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |