Patent US4210977A successfully refreshed from Google Patents.
US4210977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air cleaning apparatus
Assignee: Mail Well Corp
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Filing: 1979-02-28
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Granted: 1980-07-08
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Expires: 1999-02-28
Abstract
Abstract Apparatus for cleaning an adhesive applicator roll includes a plurality of air jets for directing an air stream against the roll to clean the same. A driven roller assembly rotates the roll as it is being cleaned by the jets.
Inventors
- 👤 Harold R. Lillibridge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:46
CPC Classifications
B; B08; B08B; B08B5/00; B08B5/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
87 words
Air cleaning apparatus for removing adhesive from a rotatably mounted applicator roll of an adhesive applicating device comprising: rotatable roller means, mounted in contacting relation with said applicator roll, said roller means for imparting a rotation to said applicator roll; air guide means mounted adjacent said applicator roll, said air guide means including air jet means on opposite sides of said roller means for issuing an air stream against the surface of said applicator roll to clean the same as it is rotated by said roller means.
Claim 2
Dependent Claim
87 words
Air cleaning apparatus for removing adhesive from a rotatably mounted applicator roll of an adhesive applicating device comprising: rotatable roller means, mounted in contacting relation with said applicator roll, said roller means for imparting a rotation to said applicator roll; air guide means mounted adjacent said applicator roll, said air guide means including air jet means on opposite sides of said roller means for issuing an air stream against the surface of said applicator roll to clean the same as it is rotated by said roller means.
Claim 3
Dependent Claim
37 words
Air cleaning apparatus in accordance with claim 1 wherein said roller means includes an elongated shaft, at least one roller on said shaft, and drive means connected to one end of said shaft for rotating the same.
Claim 4
Dependent Claim
31 words
Air cleaning apparatus in accordance with claim 2 further including: a pair of parallel, L-shaped mounts, for supporting said air guide means with said shaft of said roller means extending therebetween.
Claim 5
Dependent Claim
52 words
Air cleaning apparatus in accordance with claim 1 wherein said air jet means includes a plurality of air channels extending along the length of said air guide means, and a plurality of air jet orifices extending perpendicular to said air channels at spaced locations therealong and in communication with said air channels.
Claim 6
Dependent Claim
19 words
Air cleaning apparatus in accordance with claim 1 wherein said air guide means further includes an upper concave surface.
Claim 7
Dependent Claim
23 words
Air cleaning apparatus in accordance with claim 5 wherein said roller means extends slightly above the concave surface of said air guide means.
References Cited (Backward Citations)
US1739647A
Cited
US1957470A
Cited
US2875846A
Cited
GB797940A
Cited
US3004276A
Cited
US3765051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-08 | 1984-01-07 | 1984-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-08 | 1988-01-07 | 1988-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-08 | 1992-01-07 | 1992-07-08 | $7700.00 | Window Closed / Lapsed |