Patent US3298639A successfully refreshed from Google Patents.
US3298639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gliding parachute
Assignee: Pioneer Parachute Co Inc
•
Filing: 1965-02-08
•
Granted: 1967-01-17
•
Expires: 1985-02-08
Abstract
No abstract record available.
Inventors
- 👤 Helmut G Heinrich
- 👤 Eugene L Haak
- 👤 Ronald J Niccum
- 👤 Edward A Gimalouski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:44
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/02; B64D17/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A PARACHUTE CHARACTERIZED BY ITS ABILITY TO GLIDE A HORIZONTAL DISTANCE AFTER DEPLOYMENT WHICH IS AT LEAST EQUAL TO THE ALTITUDE OF DEPLOYMENT, COMPRISING A CANOPY WITH A PEAK AND A SKIRT AND SHROUD LINES EXTENDING DOWNWARD FROM THE SKIRT TO AT LEAST ONE POINT FOR ATTACHMENT OF A LOAD, THE CANOPY HAVING A FRONT PORTION, SIDE PORTIONS AND A REAR PORTION, THE FRONT PORTION BEING COMPOSED OF A PLURALITY OF SOLID GORES SECURED TOGETHER THROUGHOUT SUBSTANTIALLY THE ENTIRE LENGTH THEREOF, TO CREATE A CONDITION OF ATTACHED AIR FLOW OVER THE CANOPY WHEN THE PARACHUTE GLIDES FORWARDLY, THE SIDE PORTIONS OF THE CANOPY BEING PROVIDED WITH A PLURALITY OF REARWARDLY DIRECTED VENT OPENINGS, AND THE REAR PORTION OF THE CANOPY EMBODYING A PLURALITY OF GORES WHICH ARE SHORTER THAN THE GORES IN THE SIDE PORTIONS OF THE CANOPY AND COOPERATE TO PRESENT A PERMANENTLY OPEN REARWARDLY DIRECTED AIR DISCHARGE OPENING BENEATH THE LOWER EDGES THEREOF THROUGH WHICH AIR WILL BE CAUSED TO FLOW REARWARDLY FROM THE INTERIOR TO THE EXTERIOR OF THE CANOPY SO AS TO EXERT A FORWARDLY DIRECTED JET REACTION FORCE ON THE CANOPY.
Claim 2
Dependent Claim
186 words
A PARACHUTE CHARACTERIZED BY ITS ABILITY TO GLIDE A HORIZONTAL DISTANCE AFTER DEPLOYMENT WHICH IS AT LEAST EQUAL TO THE ALTITUDE OF DEPLOYMENT, COMPRISING A CANOPY WITH A PEAK AND A SKIRT AND SHROUD LINES EXTENDING DOWNWARD FROM THE SKIRT TO AT LEAST ONE POINT FOR ATTACHMENT OF A LOAD, THE CANOPY HAVING A FRONT PORTION, SIDE PORTIONS AND A REAR PORTION, THE FRONT PORTION BEING COMPOSED OF A PLURALITY OF SOLID GORES SECURED TOGETHER THROUGHOUT SUBSTANTIALLY THE ENTIRE LENGTH THEREOF, TO CREATE A CONDITION OF ATTACHED AIR FLOW OVER THE CANOPY WHEN THE PARACHUTE GLIDES FORWARDLY, THE SIDE PORTIONS OF THE CANOPY BEING PROVIDED WITH A PLURALITY OF REARWARDLY DIRECTED VENT OPENINGS, AND THE REAR PORTION OF THE CANOPY EMBODYING A PLURALITY OF GORES WHICH ARE SHORTER THAN THE GORES IN THE SIDE PORTIONS OF THE CANOPY AND COOPERATE TO PRESENT A PERMANENTLY OPEN REARWARDLY DIRECTED AIR DISCHARGE OPENING BENEATH THE LOWER EDGES THEREOF THROUGH WHICH AIR WILL BE CAUSED TO FLOW REARWARDLY FROM THE INTERIOR TO THE EXTERIOR OF THE CANOPY SO AS TO EXERT A FORWARDLY DIRECTED JET REACTION FORCE ON THE CANOPY.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |