US3348622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boundary layer control
Assignee: Individual
•
Filing: 1966-03-16
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Granted: 1967-10-24
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Expires: 1986-03-16
Abstract
No abstract record available.
Inventors
- 👤 Papst Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:28
CPC Classifications
B; B21; B21D; B21D13/00; B21D13/02; B60; B60K; B60K11/00; B60K11/08; B62; B62D; B62D31/00; B62D31/02; B62D35/00; B62D37/00; B64; B64C; B64C21/00; B64C21/02; B64C21/06; F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/141; F01D5/145; F02; F02K; F02K1/00; F02K1/78; F04; F04D; F04D29/00; F04D29/26; F04D29/28; F04D29/30; F04D29/32; F04D29/321; F04D29/324; F04D29/66; F04D29/68; F04D29/681; F04D29/682; B64C2230/00; B64C2230/04; Y; Y02; Y02T; Y02T50/00; Y02T50/10; Y02T50/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
IN A SELF-PROPELLED VEHICLE, PARTICULARLY IN A ROAD VEHICLE, A HOLLOW CHASSIS HAVING WINDOWS AND DOORS AND COMPRISING HOLLOW STRUCTURAL SUPPORT MEANS INCLUDING AT LEAST ONE POST ADJACENT TO ONE OF SAID DOORS; OUTER COVERING MEANS SUPPORTED BY SAID CHASSIS AND HOLLOW STRUCTURAL SUPPORT MEANS AND EACH OF SAID MEANS HAVING AN OUTER SIDE ALONG WHICH A BOUNDARY LAYER DEVELOPS WHEN THE VEHICLE IS IN MOTION, ONE OF SAID MEANS HAVING SLOTS AT LEAST SOME OF WHICH ARE PROVIDED ON SAID POST AND THROUGH WHICH THE BOUNDARY LAYER MAY ENTER THE INTERIOR THEREOF, SAID SLOTS EXTENDING SUBSTANTIALLY TRANSVERSELY OF THE DIRECTION OF MOVEMENT OF THE VEHICLE; AND SUCTION-GENERATING MEANS CARRIED BY SAID VEHICLE AND OPERATIVE FOR PRODUCING AT AN INNER SIDE OF THE RESPECTIVE MEANS A SUCTION EFECT SO AS TO COMPEL ENTRY OF THE BOUNDARY LAYER INTO SAID SLOTS AT THE RESPECTIVE OUTER SIDES.
Claim 2
Dependent Claim
145 words
IN A SELF-PROPELLED VEHICLE, PARTICULARLY IN A ROAD VEHICLE, A HOLLOW CHASSIS HAVING WINDOWS AND DOORS AND COMPRISING HOLLOW STRUCTURAL SUPPORT MEANS INCLUDING AT LEAST ONE POST ADJACENT TO ONE OF SAID DOORS; OUTER COVERING MEANS SUPPORTED BY SAID CHASSIS AND HOLLOW STRUCTURAL SUPPORT MEANS AND EACH OF SAID MEANS HAVING AN OUTER SIDE ALONG WHICH A BOUNDARY LAYER DEVELOPS WHEN THE VEHICLE IS IN MOTION, ONE OF SAID MEANS HAVING SLOTS AT LEAST SOME OF WHICH ARE PROVIDED ON SAID POST AND THROUGH WHICH THE BOUNDARY LAYER MAY ENTER THE INTERIOR THEREOF, SAID SLOTS EXTENDING SUBSTANTIALLY TRANSVERSELY OF THE DIRECTION OF MOVEMENT OF THE VEHICLE; AND SUCTION-GENERATING MEANS CARRIED BY SAID VEHICLE AND OPERATIVE FOR PRODUCING AT AN INNER SIDE OF THE RESPECTIVE MEANS A SUCTION EFECT SO AS TO COMPEL ENTRY OF THE BOUNDARY LAYER INTO SAID SLOTS AT THE RESPECTIVE OUTER SIDES.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |