US3577651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for air-treating sheet material surfaces and the like
Assignee: Industrial Air Co Inc
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Filing: 1968-12-05
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Granted: 1971-05-04
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Expires: 1988-12-05
Abstract
Abstract This disclosure deals with the air-treating of sheet material surfaces and the like by introducing pressurized air upon the material through novel transversely extending and longitudinally spaced nozzle members provided with vertically separated perforated discharge members for providing substantially uniform air flow.
Inventors
- 👤 John A Nichols
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:15
CPC Classifications
F; F26; F26B; F26B21/00; F26B21/50; F26B21/55
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
Apparatus for air-treating sheet material surfaces and the like having, in combination, means for conveying along a predetermined longitudinal path sheet material provided with a surface to be air treated, chamber means disposed adjacent said surface and extending transversely thereof, said chamber means being provided with means for introducing pressurized air therein and a plurality of transversely extending nozzle means spaced at successive longitudinally displaced intervals along said path, each nozzle means comprising a pair of perforated discharge members spaced from one another in a plane substantially perpendicular to the transverse and longitudinal directions of the material, one member having perforations extending in a line substantially parallel to the transverse dimensions of said sheet material and communicating through its perforations with said chamber means and the other member having perforations extending in staggered transverse lines and disposed near said surface for directing through its perforations air flow distributed from said chamber means through the perforations in said one member transversely upon said surface with substantially equalized volume and velocity thereacross.
Claim 2
Dependent Claim
170 words
Apparatus for air-treating sheet material surfaces and the like having, in combination, means for conveying along a predetermined longitudinal path sheet material provided with a surface to be air treated, chamber means disposed adjacent said surface and extending transversely thereof, said chamber means being provided with means for introducing pressurized air therein and a plurality of transversely extending nozzle means spaced at successive longitudinally displaced intervals along said path, each nozzle means comprising a pair of perforated discharge members spaced from one another in a plane substantially perpendicular to the transverse and longitudinal directions of the material, one member having perforations extending in a line substantially parallel to the transverse dimensions of said sheet material and communicating through its perforations with said chamber means and the other member having perforations extending in staggered transverse lines and disposed near said surface for directing through its perforations air flow distributed from said chamber means through the perforations in said one member transversely upon said surface with substantially equalized volume and velocity thereacross.
Claim 3
Dependent Claim
22 words
Apparatus as claimed in claim 1 and in which means are provided for varying the air flow characteristics through said nozzle means.
Claim 4
Dependent Claim
25 words
Apparatus as claimed in claim 2 and in which said varying means comprises means for detachably securing either of said members to said nozzle means.
Claim 5
Dependent Claim
72 words
Apparatus as in claim 3 wherein said securing means include detachable mountings operatively associated with said one member for normally holding said one member in position adjacent said other member and for enabling replacement of said one member whereby variation in air flow characteristics can be achieved by said replacement with another of said one members having perforations of a different size than the size of the perforations of said one member.
Claim 6
Dependent Claim
25 words
Apparatus as claimed in claim 1 further including front and rear walls interconnecting said members and converging from said one member toward said other member.
Claim 7
Dependent Claim
62 words
Apparatus as claimed in claim 1 and in which said sheet material is provided with opposite surfaces to be simultaneously air treated, the said chamber means with the plurality of transversely extending nozzle means being disposed adjacent one of the surfaces, and a second sImilar chamber means with a similar plurality of transversely extending nozzle means being disposed adjacent the opposite surface.
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) | 1974-05-03 | 1974-11-02 | 1975-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-03 | 1978-11-02 | 1979-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-03 | 1982-11-02 | 1983-05-04 | $7700.00 | Window Closed / Lapsed |