US3875899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayer apparatus
Assignee: Individual
•
Filing: 1969-07-14
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Granted: 1975-04-08
•
Expires: 1989-07-14
Abstract
Abstract Sprayer apparatus comprising an enclosure having an articlereceiving opening and an article-discharging opening, in which means are provided for preventing the flow of air through the article-receiving opening and in which means are provided for removing entrained particles from the air within the enclosure before discharging the air into the ambient atmosphere.
Inventors
- 👤 John W Clements
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:18
CPC Classifications
B; B05; B05B; B05B14/00; B05B14/40; B05B14/44; B05B16/00; B05B16/60; Y; Y02; Y02P; Y02P70/00; Y02P70/10; Y10; Y10S; Y10S118/00; Y10S118/07
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
200 words
Apparatus for spray coating articles comprising an enclosure having article feed and discharge openings and an exhaust opening, means for removing air-suspended particles from the air within said enclosure, said means comprising means for effecting a positive circulation within said enclosure so that ambient air is drawn into said enclosure through said feed and discharge openings said dispelled through said discharge opening, said last-named means including a plenum chamber, an exhaust chamber, a heat exchange chamber interposed between said plenum chamber and said exhaust chamber, a first perforate partition dividing said plenum chamber and said heat exchange chamber, a second perforate partition separating said heat exchange chamber from said exhaust chamber, a plurality of baffles extending between said first partition and said second partition, each of said baffles being of rectangular cross-section and being disposed to form a plurality of tortuous paths for air having particles entrained therein, each of said baffles having an opening therein in register with aligned openings in said first and second partitions so that heated air may flow from said plenum chamber through said openings to said exhaust chamber to maintain in liquid condition the entrained particles in the air flowing through said tortuous paths.
Claim 2
Dependent Claim
200 words
Apparatus for spray coating articles comprising an enclosure having article feed and discharge openings and an exhaust opening, means for removing air-suspended particles from the air within said enclosure, said means comprising means for effecting a positive circulation within said enclosure so that ambient air is drawn into said enclosure through said feed and discharge openings said dispelled through said discharge opening, said last-named means including a plenum chamber, an exhaust chamber, a heat exchange chamber interposed between said plenum chamber and said exhaust chamber, a first perforate partition dividing said plenum chamber and said heat exchange chamber, a second perforate partition separating said heat exchange chamber from said exhaust chamber, a plurality of baffles extending between said first partition and said second partition, each of said baffles being of rectangular cross-section and being disposed to form a plurality of tortuous paths for air having particles entrained therein, each of said baffles having an opening therein in register with aligned openings in said first and second partitions so that heated air may flow from said plenum chamber through said openings to said exhaust chamber to maintain in liquid condition the entrained particles in the air flowing through said tortuous paths.
Claim 3
Dependent Claim
37 words
Apparatus in accordance with claim 1 wherein said baffles are disposed in said heat exchange chamber in alternate series, the baffles of one series being offset with respect to said second series to provide said tortuous paths.
Claim 4
Dependent Claim
30 words
Apparatus in accordance with claim 2 wherein each of said baffles has at each end thereof an annular boss sealingly received in one of the openings of the associated partition.
Claim 5
Dependent Claim
164 words
A hot liquid wax spraying system comprising a plurality of wax sprayheads, a wax supply system therefor, means for transporting sheets to be treated through the region covered by said wax sprayheads, and a controlled enclosure for said wax spraying system comprising a base having a collecting section therein disposed to collect spurious wax, a cover connected to said base in sealing relationship therewith except for feed and discharge openings for said sheets, means for heating said cover, said cover being heated thereby and shaped to direct spurious wax deposits to flow to said collecting section in said base without contacting the sheets to be treated, heat exchanger means in said collecting section, means for heating said heat exchanger, and means for drawing air into said enclosure and for exhausting said air and spurious wax in said enclosure through said heated exchanger to an outlet, said heat exchanger being oriented and heated such that wax in said collecting section separates from said exhausted air.
Claim 6
Dependent Claim
164 words
A hot liquid wax spraying system comprising a plurality of wax sprayheads, a wax supply system therefor, means for transporting sheets to be treated through the region covered by said wax sprayheads, and a controlled enclosure for said wax spraying system comprising a base having a collecting section therein disposed to collect spurious wax, a cover connected to said base in sealing relationship therewith except for feed and discharge openings for said sheets, means for heating said cover, said cover being heated thereby and shaped to direct spurious wax deposits to flow to said collecting section in said base without contacting the sheets to be treated, heat exchanger means in said collecting section, means for heating said heat exchanger, and means for drawing air into said enclosure and for exhausting said air and spurious wax in said enclosure through said heated exchanger to an outlet, said heat exchanger being oriented and heated such that wax in said collecting section separates from said exhausted air.
Claim 7
Dependent Claim
28 words
Apparatus as defined in claim 4 in which said transporting means include point contact means for minimizing spurious transfer of wax from said transporting means to said sheets.
Claim 8
Dependent Claim
19 words
Apparatus as defined in claim 4 in which said exchanger heating means are positioned to also heat said enclosure.
Claim 9
Dependent Claim
142 words
Apparatus for spray coating articles comprising an enclosure having article feed and discharge openings and an exhaust opening, means for removing air-suspended particles from the air within said enclosure, said means comprising means for effecting a positive circulation within said enclosure so that ambient air is drawn into said enclosure through said feed and discharge openings, and dispelled through said exhaust opening, said last-named means including a passage, a heat exchanger positioned within said passage, said heat exchanger having a plurality of tortuous paths each including a plurality of angularly oppsitely disposed heating surfaces, whereby all of the particle-laden air is passed through said heat exchanger prior to passing through said discharge opening, said heat exchanger being of the air-to-air type and including a heating chamber and fan means for circulating air through said heating chamber and the spaces between said paths.
Claim 10
Dependent Claim
142 words
Apparatus for spray coating articles comprising an enclosure having article feed and discharge openings and an exhaust opening, means for removing air-suspended particles from the air within said enclosure, said means comprising means for effecting a positive circulation within said enclosure so that ambient air is drawn into said enclosure through said feed and discharge openings, and dispelled through said exhaust opening, said last-named means including a passage, a heat exchanger positioned within said passage, said heat exchanger having a plurality of tortuous paths each including a plurality of angularly oppsitely disposed heating surfaces, whereby all of the particle-laden air is passed through said heat exchanger prior to passing through said discharge opening, said heat exchanger being of the air-to-air type and including a heating chamber and fan means for circulating air through said heating chamber and the spaces between said paths.
Claim 11
Dependent Claim
130 words
Apparatus for spray coating articles comprising an enclosure having article feed and discharge openings and an exhaust opening, means for removing air-suspended particles from the air within said enclosure, said means comprising means for effecting a positive circulation within said enclosure so that ambient air is drawn into said enclosure through said feed and discharge openings, and dispelled through said exhaust opening, said last-named means including a passage, a heat exchanger positioned within said passage, said heat exchanger having a plurality of tortuous paths each including a plurality of angularly oppositely disposed heated surfaces, whereby all of the particle-laden air is passed through said heat exchanger prior to passing through said discharge opening, said enclosure being contoured to direct spurious liquid collected thereon to the region of said heat exchanger.
Claim 12
Dependent Claim
130 words
Apparatus for spray coating articles comprising an enclosure having article feed and discharge openings and an exhaust opening, means for removing air-suspended particles from the air within said enclosure, said means comprising means for effecting a positive circulation within said enclosure so that ambient air is drawn into said enclosure through said feed and discharge openings, and dispelled through said exhaust opening, said last-named means including a passage, a heat exchanger positioned within said passage, said heat exchanger having a plurality of tortuous paths each including a plurality of angularly oppositely disposed heated surfaces, whereby all of the particle-laden air is passed through said heat exchanger prior to passing through said discharge opening, said enclosure being contoured to direct spurious liquid collected thereon to the region of said heat exchanger.
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) | 1978-04-07 | 1978-10-07 | 1979-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-07 | 1982-10-07 | 1983-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-07 | 1986-10-07 | 1987-04-08 | $7700.00 | Window Closed / Lapsed |