Patent US3972494A successfully refreshed from Google Patents.
US3972494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle air screen apparatus
Assignee: Individual
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Filing: 1974-08-30
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Granted: 1976-08-03
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Expires: 1994-08-30
Abstract
Abstract A land, water or air vehicle has a jet air stream unit mounted in front with a plurality of distributed jets generated immediately preceding the front wall portion of the vehicle to reduce the opposing pressure as well as the mass of air with the resulting greater ease in movement of the vehicle. As applied to an automobile type vehicle, an air pump is located immediately behind the radiator so as not to unduly interfere with the air flow through the conventional radiator. A small air jet forming unit is mounted in front of the vehicle having an inlet connected to the air pump and outlets directed at right angles to the line of motion. The jets are generally in a semi-circular pattern with the lower portion free of jets for removal of the air from immediately preceding the automobile while permitting sufficient air flow to the radiator. In winged aircraft, an appropriate air screen apparatus is secured to the forward or leading edge of the wing to produce air jets directed normal to the direction of the movement of the air foil section to minimize the wind resistance and effectively control the contour of the air foil section. In watercraft, an air or water jet screen may also be created below the water line to part the water and reduce the opposition to movement through the water.
Inventors
- 👤 Hilbert F. P. Drews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:30
CPC Classifications
B; B62; B62D; B62D35/00; B63; B63B; B63B1/00; B63B1/32; B64; B64C; B64C23/00; Y; Y02; Y02T; Y02T70/00; Y02T70/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
203 words
In a land vehicle having ground support means for movement over land and adapted to be moved through the atmosphere, said vehicle having a forward wall means moving through and parting the air as the vehicle moves through the atmosphere, an air jet forming means mounted forwardly of such wall means and being substantially smaller than the forward wall means and having orifice means essentially parallel to such wall means and forwardly of the wall means connected to said jet forming means and establishing at least one high velocity air jet screen from said orifice means projected essentially normal to the direction of movement of said wall means and operable substantially over substantially the entire wall area for removing of the air from in front of said wall means by entrainment of air within such jet and thereby minimize the compression of the air wall forwardly of said wall means and thereby minimize the opposition to vehicle movement, said air jet forming means is mounted centrally of such wall means of the vehicle and establishing a plurality of jets projected essentially normal to the direction of movement, said plurality of jets including individual side jets moving in opposite directions and upwardly directed jets.
Claim 2
Dependent Claim
203 words
In a land vehicle having ground support means for movement over land and adapted to be moved through the atmosphere, said vehicle having a forward wall means moving through and parting the air as the vehicle moves through the atmosphere, an air jet forming means mounted forwardly of such wall means and being substantially smaller than the forward wall means and having orifice means essentially parallel to such wall means and forwardly of the wall means connected to said jet forming means and establishing at least one high velocity air jet screen from said orifice means projected essentially normal to the direction of movement of said wall means and operable substantially over substantially the entire wall area for removing of the air from in front of said wall means by entrainment of air within such jet and thereby minimize the compression of the air wall forwardly of said wall means and thereby minimize the opposition to vehicle movement, said air jet forming means is mounted centrally of such wall means of the vehicle and establishing a plurality of jets projected essentially normal to the direction of movement, said plurality of jets including individual side jets moving in opposite directions and upwardly directed jets.
Claim 3
Dependent Claim
57 words
The apparatus of claim 1 wherein said air jet forming means includes an air pump means coupled to the vehicle and having an output coupled to a plurality of jet forming channels, and means to control the relative strength of the air jets to the opposite side of said vehicle to thereby compensate for cross wind characteristics.
Claim 4
Dependent Claim
158 words
In a vehicle adapted to be moved through the atmosphere, said vehicle having a forward wall means moving through and parting the air as the vehicle moves through the atmosphere, an air jet forming means mounted forwardly of such wall means and having orifice means essentially parallel to such wall means and forwardly of the wall means connected to said jet forming means and establishing at least one high velocity air jet from said orifice means projected essentially normal to the direction of movement of said wall means and operable substantially over the wall area for removing of the air from in front of said wall means and thereby eliminating the compression of the air wall forwardly of said wall means and thereby minimize the opposition to vehicle movement, said vehicle is an aircraft having a forwardly projecting nose portion, said jet forming means secured to the nose portion and establish the air jets forwardly of the aircraft.
Claim 5
Dependent Claim
158 words
In a vehicle adapted to be moved through the atmosphere, said vehicle having a forward wall means moving through and parting the air as the vehicle moves through the atmosphere, an air jet forming means mounted forwardly of such wall means and having orifice means essentially parallel to such wall means and forwardly of the wall means connected to said jet forming means and establishing at least one high velocity air jet from said orifice means projected essentially normal to the direction of movement of said wall means and operable substantially over the wall area for removing of the air from in front of said wall means and thereby eliminating the compression of the air wall forwardly of said wall means and thereby minimize the opposition to vehicle movement, said vehicle is an aircraft having a forwardly projecting nose portion, said jet forming means secured to the nose portion and establish the air jets forwardly of the aircraft.
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) | 1979-08-03 | 1980-02-02 | 1980-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-03 | 1984-02-02 | 1984-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-03 | 1988-02-02 | 1988-08-03 | $7700.00 | Window Closed / Lapsed |