Patent US3563203A successfully refreshed from Google Patents.
US3563203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray chamber apparatus having protected conveyor means
Assignee: Baron Blakeslee Inc
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Filing: 1969-06-11
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Granted: 1971-02-16
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Expires: 1989-06-11
Abstract
Abstract The problem of corrosive sprayed liquid or vapor-contacting conveyors carrying parts through a spray chamber is overcome by enclosing the conveyor in a duct having resilient sealing lips which are locally deflectable to pass parts supports carried by the conveyor. Entry of spray liquid and vapor into the duct past locally deflected sealing lips is positively prevented by provision of pressurized air within the duct to flow outwardly and progressively at the traveling locus of sealing lip deflection.
Inventors
- 👤 Marshall A Stiltner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:34
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/20; B05; B05B; B05B13/00; B05B13/02; B05B13/0221; B05B13/0264; B65G21/00; B65G21/20; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
131 words
Spray chamber apparatus that includes a tunnellike housing defining a path for parts to be sprayed, conveyor means carrying parts to be sprayed along said path, said conveyor means including a driven member and a part support depending from said member, a duct enclosing said conveyor member against contact with sprayed liquids and their vapors, resilient sealing means extending across the bottom of said duct and having localized deflectability along its length responsive to progressive passage of the part support through said sealing means, and means protecting against inflow into said duct of sprayed liquid past deflected portions of the sealing means including blower means pressurizing air within the duct for flow outwardly therefrom in response to local deflection of said sealing means and progressively with travel of the part support.
Claim 2
Dependent Claim
131 words
Spray chamber apparatus that includes a tunnellike housing defining a path for parts to be sprayed, conveyor means carrying parts to be sprayed along said path, said conveyor means including a driven member and a part support depending from said member, a duct enclosing said conveyor member against contact with sprayed liquids and their vapors, resilient sealing means extending across the bottom of said duct and having localized deflectability along its length responsive to progressive passage of the part support through said sealing means, and means protecting against inflow into said duct of sprayed liquid past deflected portions of the sealing means including blower means pressurizing air within the duct for flow outwardly therefrom in response to local deflection of said sealing means and progressively with travel of the part support.
Claim 3
Dependent Claim
34 words
Apparatus according to claim 1 in which said sealing means includes a longitudinally extended strip of resilient material supported at one long side by said duct and free of support at the opposite side.
Claim 4
Dependent Claim
21 words
Apparatus according to claim 2, in which said sealing means includes normally interengaged resilient strips between which the part support depends.
Claim 5
Dependent Claim
19 words
Apparatus according to claim 3 in which said duct has downwardly and inwardly sloping wall portions carrying said strips.
Claim 6
Dependent Claim
32 words
Apparatus according to claim 1 in which said conveyor means also includes support bearings for said member and an axially elongated tubular bearing surface partially surrounding said member and within said duct.
Claim 7
Dependent Claim
37 words
The combination according to claim 1 in which said housing is open at opposite ends for passage of parts, and said conveyor duct extends through the upper reaches of said housing and outwardly beyond the ends thereof.
Claim 8
Dependent Claim
46 words
Apparatus according to claim 6 including also means continually sweeping air through the duct interior within the housing comprising air inlet means into said duct communicating with said blower means and air outlet means from said duct spaced from said air inlet means along said duct.
Claim 9
Dependent Claim
64 words
Apparatus according to claim 7 in which said duct bottom has a lengthwise slot for passage of the part support, said sealing means comprising opposed flexible lips normally contacting to seal the slot and separable by deflecting passage of said part support to direct pressurized air from the duct downwardly around said part support progressively with passage of said part support through the slot.
Claim 10
Dependent Claim
17 words
Apparatus according to claim 8 including also suction exhaust means communicating with said duct air outlet means.
Claim 11
Dependent Claim
20 words
Apparatus according to claim 1 including guide means extending from the duct to direct said parts support along said path.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |