US4306684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low noise air nozzle
Assignee: Rexam Beverage Can Co
•
Filing: 1979-12-04
•
Granted: 1981-12-22
•
Expires: 1999-12-04
Abstract
Abstract A low noise air nozzle system for fanning and separating stacked sheet to facilitate single sheet pick-up. The system employs nozzles which are provided with a diverging air ejection channel which terminates at the nozzle face in an orifice slit 0.025" wide.
Inventors
- 👤 Robert J. Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:28
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/46; B65H3/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
The low noise air nozzle for fanning stacked sheet comprising: (a) a nozzle body with an entrance portion in the rear and an exit portion in the face; and wherein said entrance portion is bored to provide a cylindrical supply channel, said supply channel terminating within said nozzle in a conical configuration; and wherein said exit portion is milled to form a thin planar slot, said planar slot joining the base of said conical configuration with said nozzle face to form an ejection channel with a longitudinal flow axis, said ejection channel terminating in the face of said nozzle as a thin vertical planar slit about 0.025" in width; and wherein the upper and lower walls of said ejection channel diverge at an angle of 5° to 7° in progressing from said junction to said face; and (b) means joining said supply channel to provide air to said nozzle.
Claim 2
Dependent Claim
149 words
The low noise air nozzle for fanning stacked sheet comprising: (a) a nozzle body with an entrance portion in the rear and an exit portion in the face; and wherein said entrance portion is bored to provide a cylindrical supply channel, said supply channel terminating within said nozzle in a conical configuration; and wherein said exit portion is milled to form a thin planar slot, said planar slot joining the base of said conical configuration with said nozzle face to form an ejection channel with a longitudinal flow axis, said ejection channel terminating in the face of said nozzle as a thin vertical planar slit about 0.025" in width; and wherein the upper and lower walls of said ejection channel diverge at an angle of 5° to 7° in progressing from said junction to said face; and (b) means joining said supply channel to provide air to said nozzle.
References Cited (Backward Citations)
US1498965A
Cited
US2406765A
Cited
US2848227A
Cited
DE1090687B
Cited
US3398899A
Cited
DE2217755B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |