US4586197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerodynamically stabilized motorcyclist helmet
Assignee: Individual
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Filing: 1985-01-31
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Granted: 1986-05-06
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Expires: 2005-01-31
Abstract
Abstract An inverted visor fixed to lower back rim of a motorcycle helmet to extend upwardly and backwardly therefrom and around a lower back portion thereof and adjustable for varying speeds of travel by a forward and backward tilt of wearer's head to maximum neck muscles relaxation for each speed.
Inventors
- 👤 Stirling J. Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/0493
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
83 words
On a motorcycle helmet having front and back lower rims, a front downwardly depending face shield and a chin strap, an inverted visor fixed to said lower back rim and extending upwardly and outwardly around the rear of said helmet for inducing counteracting wind pressures to the wind pressures due to forward motion of of a motorcycle and helmet wearer proportional to the amount of forward and backward tilt of wearer's head and helmet according to increase and decrease, respectively, of motorcycle speeds.
Claim 2
Dependent Claim
83 words
On a motorcycle helmet having front and back lower rims, a front downwardly depending face shield and a chin strap, an inverted visor fixed to said lower back rim and extending upwardly and outwardly around the rear of said helmet for inducing counteracting wind pressures to the wind pressures due to forward motion of of a motorcycle and helmet wearer proportional to the amount of forward and backward tilt of wearer's head and helmet according to increase and decrease, respectively, of motorcycle speeds.
Claim 3
Independent Claim
89 words
The method of aerodynamically stabilizing a motorcycle helmet to varying speeds of said motorcycle by helmet wearer, comprising the steps of: (a) fixing an inverted visor to a lower back rim of said helmet to extend upwardly and rearwardly around the lower back thereof; and (b) tilting said helmet wearer's head and helmet forwardly proportional to an increase in speed of said motorcycle and backwardly similarly for speed decreases until neck muscles of said helmet wearer's head are maximally relaxed by the counteraction of front and rear wind pressures.
Claim 4
Independent Claim
89 words
The method of aerodynamically stabilizing a motorcycle helmet to varying speeds of said motorcycle by helmet wearer, comprising the steps of: (a) fixing an inverted visor to a lower back rim of said helmet to extend upwardly and rearwardly around the lower back thereof; and (b) tilting said helmet wearer's head and helmet forwardly proportional to an increase in speed of said motorcycle and backwardly similarly for speed decreases until neck muscles of said helmet wearer's head are maximally relaxed by the counteraction of front and rear wind pressures.
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) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |