US3703880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray coating apparatus
Assignee: Pilkington North America Inc
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Filing: 1970-05-06
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Granted: 1972-11-28
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Expires: 1990-05-06
Abstract
Abstract Apparatus for spraying a uniform layer of parting material on the surface of glass windshield blanks prior to the bending thereof in laminated pairs. A composite spray arm oscillates vertically about a pivot point above a continuous conveyor upon which the blanks are advanced while horizontally disposed, and has a central telescoping section adapted to render the path of the lower end thereof substantially linear. A spray nozzle fixed to a member pivotally mounted on the lower end of the spray arm is adapted to pivot in conjunction with the oscillation of the arm so as to maintain the axis of the spray nozzle substantially vertical.
Inventors
- 👤 David M Wampler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/02; B05B13/04; B05B13/0463; B05B13/0468; B05B13/0473
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
192 words
In apparatus for depositing a coating material on the surface of horizontally disposed glass sheets advancing along a predetermined path, the improvement comprising an extensible arm pivotally mounted above said path for movement in a plane transversely of said path, said extensible arm including at least two sections axially movable relative to each other for adjusting the length of said arm, means carried by said arm at the lower end thereof for depositing said coating material on said sheets as they pass therebeneath, means swinging said arm back and forth about said pivotal mounting whereby said means for depositing said coating material swings with said arm and repeatedly traverses across said advancing sheets, and means adjusting the length of said extensible arm in response to said back and forth movement whereby said means carried by said arm for depositing said coating material maintains a substantially uniform distance from said sheets as it moves thereacross, said means adjusting the length of said arm comprising a connecting rod having a stationary end independently attached to the support structure below the picot point of said arm and a traveling end attached to said extensible arm.
Claim 2
Dependent Claim
192 words
In apparatus for depositing a coating material on the surface of horizontally disposed glass sheets advancing along a predetermined path, the improvement comprising an extensible arm pivotally mounted above said path for movement in a plane transversely of said path, said extensible arm including at least two sections axially movable relative to each other for adjusting the length of said arm, means carried by said arm at the lower end thereof for depositing said coating material on said sheets as they pass therebeneath, means swinging said arm back and forth about said pivotal mounting whereby said means for depositing said coating material swings with said arm and repeatedly traverses across said advancing sheets, and means adjusting the length of said extensible arm in response to said back and forth movement whereby said means carried by said arm for depositing said coating material maintains a substantially uniform distance from said sheets as it moves thereacross, said means adjusting the length of said arm comprising a connecting rod having a stationary end independently attached to the support structure below the picot point of said arm and a traveling end attached to said extensible arm.
Claim 3
Dependent Claim
93 words
Apparatus for depositing a coating on the surface of horizontally disposed glass sheets as claimed in claim 1, wherein said material depositing means comprises a spray nozzle fixed to a mounting member attached to the lower end of said arm and adapted to pivot in a vertical plane, and including a connecting rod attached to said mounting member and adapted to pivot said mounting member in conjunction with said swing to maintain an essentially constant angle of incidence between the axis of said nozzle and said sheets as said nozzle traverses said conveyor.
Claim 4
Dependent Claim
43 words
Apparatus for depositing a coating on the surface of horizontally disposed glass sheets as claimed in claim 2, wherein said connecting rod and mounting member maintain the axis of said nozzle in a substantially vertical position as said arm traverses across said sheets.
Claim 5
Dependent Claim
56 words
Apparatus for depositing a coating on the surface of horizontally disposed glass sheets as claimed in claim 2, wherein said predetermined path comprises a conveyor and including means actuating and shutting off the spraying mechanism of said nozzle in response to movement of glass sheets on said conveying means into and out of position for spraying.
Claim 6
Dependent Claim
61 words
Apparatus for depositing a coating on the surface of horizontally disposed glass sheets as claimed in claim 1, wherein said means swinging said arm includes a drive means supplying rotational motion, a crank arm attached thereto, and a connecting rod pivotally attached to said crank arm and spray arm transforming said rotational motion into reciprocal motion pivotally oscillating said spray arm.
Claim 7
Dependent Claim
140 words
Apparatus for depositing a coating material on the surface of horizontally disposed glass sheets as claimed in claim 1; wherein said extensible arm is pivOtally mounted on a pivot shaft and comprises segmented upper and lower sections and a central tubular section therebetween, said upper segmented section including an upper member having means adapted to mount said arm on said pivot shaft, said upper member being attached to said swinging means above said pivot shaft, and a lower member fixed thereto and telescopically mounted within said central tubular section for axial extension and retraction of said arm, said lower segmented section including an upper element affixed to the lower end of said central tubular section and a lower element fixed to said upper element and adapted to carry said means for depositing said coating material at the lower end thereof.
Claim 8
Dependent Claim
136 words
Apparatus for depositing a coating material on the surface of horizontally disposed glass sheets as claimed in claim 1, wherein said means swinging said arm includes a drive means supplying rotational motion, a crank arm attached thereto, and a connecting rod pivotally attached to said crank arm and spray arm transforming said rotational motion into reciprocal motion pivotally oscillating said spray arm, and said material depositing means includes a spray nozzle fixed to a mounting member attached to the lower end of said arm and adapted to pivot in a vertical plane and a connecting rod attached to said mounting member and adapted to pivot said mounting member in conjunction with said swing to maintain an essentially constant angle of incidence between the axis of said nozzle and said sheets as said nozzle traverses said conveyor.
References Cited (Backward Citations)
US1831535A
Cited
US1835402A
Cited
US2369424A
Cited
US2561198A
Cited
FR1144441A
Cited
US2925801A
Cited
US3192796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-11-28 | 1976-05-29 | 1976-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-28 | 1980-05-29 | 1980-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-28 | 1984-05-29 | 1984-11-28 | $7700.00 | Window Closed / Lapsed |