US3695226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying booth
Assignee: Aerocoat SA
•
Filing: 1970-05-26
•
Granted: 1972-10-03
•
Expires: 1990-05-26
Abstract
Abstract A spraying booth for facilitating the recovery of the surplus of pulverulent material used to coat an object with an electrostatic gun, which includes at the rear means for enabling the booth to communicate with an air extraction installation, which is open at the front to give access to the gun, and which has a vertical cross-section that increases from the front rearwards.
Inventors
- 👤 Maurice Paul Wanner
- 👤 Neil Rudolph Wallis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:03
CPC Classifications
B; B05; B05B; B05B14/00; B05B14/40; B05B14/48; Y; Y02; Y02P; Y02P70/00; Y02P70/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
218 words
A spraying booth for spray coating a dry sprayed material onto an object within said booth comprising, in combination: a booth enclosure having a bottom and enclosing wall means, said wall means defining an open front for admission of said dry sprayed material into said enclosure and for forming an air flow inlet to said enclosure, said wall means including sides and a rear portion and also defining openings in said rear portion of the enclosure distributed over an area greater than the area of said open front, said openings forming an air flow outlet from said enclosure, said enclosure including means for support of an object located intermediate said open front and said openings, said means for support defining the position where an object to be sprayed is placed in said enclosure, said booth also comprising air collector means communicating with said enclosure through said openings, said collector means connectable with air extractor means to positively draw air through said open front, about said means for support and an object supported thereby and then to withdraw air from said booth through said openings and into said collector means, to maintain the velocity of air, at least about an object supported by said means for support relatively less than the velocity at said open front into said enclosure.
Claim 2
Dependent Claim
218 words
A spraying booth for spray coating a dry sprayed material onto an object within said booth comprising, in combination: a booth enclosure having a bottom and enclosing wall means, said wall means defining an open front for admission of said dry sprayed material into said enclosure and for forming an air flow inlet to said enclosure, said wall means including sides and a rear portion and also defining openings in said rear portion of the enclosure distributed over an area greater than the area of said open front, said openings forming an air flow outlet from said enclosure, said enclosure including means for support of an object located intermediate said open front and said openings, said means for support defining the position where an object to be sprayed is placed in said enclosure, said booth also comprising air collector means communicating with said enclosure through said openings, said collector means connectable with air extractor means to positively draw air through said open front, about said means for support and an object supported thereby and then to withdraw air from said booth through said openings and into said collector means, to maintain the velocity of air, at least about an object supported by said means for support relatively less than the velocity at said open front into said enclosure.
Claim 3
Dependent Claim
31 words
A spraying booth according to claim 1 wherein said openings are distributed over an area of said wall means at least twice as great as the opening at the open front.
Claim 4
Dependent Claim
32 words
A spraying booth according to claim 1 wherein the bottom of the enclosure has a downward slope from the front rearwards and terminates in a transverse channel for collecting excess sprayed material.
Claim 5
Dependent Claim
18 words
A spraying booth according to claim 1 having a vertical cross section that increases from the front rearwards.
Claim 6
Dependent Claim
24 words
A spraying booth according to claim 1 wherein the bottom of the enclosure is made at least partially of conductive material which is grounded.
Claim 7
Dependent Claim
27 words
A spraying booth according to claim 1 wherein said openings comprise circular passages arranged in said wall means with passages having decreasing diameters from the top downward.
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) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |