Patent US4704746A successfully refreshed from Google Patents.
US4704746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integral helmet
Assignee: Nava and Co SpA
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Filing: 1985-10-29
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Granted: 1987-11-10
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Expires: 2005-10-29
Abstract
Abstract The chin piece of a helmet (A) having a visor has a horizontal channel to convey air from apertures to the interior of the helmet and, specifically, to strike the inner surface of the visor to avoid fogging of the visor. The helmet also has side intercepting elements. Each intercepting element is a rotating non-projecting cap to convey air into or from the interior of helmet or to close air communication. An aperture in the top of the helmet increases air circulation and is covered for suction discharge of air to the exterior.
Inventors
- 👤 Pier L. Nava
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:43
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/28; A42B3/281; A42B3/18; A42B3/22; A42B3/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
191 words
A helmet comprising: an integral helmet (A) having a visor (F) on one front side; a shock absorber liner (42) inside the helmet; a comfort padding (44) inside the shock absorber liner; an opening (34) for air inflow into the helmet through the one front side of the helmet; at least one conduit opening (10a, 12a) at each side of the helmet lateral of the one, front side for ventilating air for the helmet; at least one upper aperture (22) through a top of the helmet for discharging air from the helmet, whereby, owing to the top position, to facilitate such air discharge when the helmet is not moving relative to the ambient air; and covering means (30) covering the at least one upper aperture relative to the helmet for protecting the at least one upper aperture from weather, the covering means (30) also being shaped for discharging air from inside the helmet through the at least one upper aperture by suction through the rear of the covering means relative to the one front side of the helmet during forward motion of the helmet relative to the one front side thereof.
Claim 2
Dependent Claim
191 words
A helmet comprising: an integral helmet (A) having a visor (F) on one front side; a shock absorber liner (42) inside the helmet; a comfort padding (44) inside the shock absorber liner; an opening (34) for air inflow into the helmet through the one front side of the helmet; at least one conduit opening (10a, 12a) at each side of the helmet lateral of the one, front side for ventilating air for the helmet; at least one upper aperture (22) through a top of the helmet for discharging air from the helmet, whereby, owing to the top position, to facilitate such air discharge when the helmet is not moving relative to the ambient air; and covering means (30) covering the at least one upper aperture relative to the helmet for protecting the at least one upper aperture from weather, the covering means (30) also being shaped for discharging air from inside the helmet through the at least one upper aperture by suction through the rear of the covering means relative to the one front side of the helmet during forward motion of the helmet relative to the one front side thereof.
Claim 3
Dependent Claim
24 words
The helmet as defined in claim 1, wherein the at least one upper aperture (22) is in the top central part of the helmet.
Claim 4
Dependent Claim
46 words
The helmet as defined in claim 1, and further comprising a channel (26) in the comfort padding and a top channel (24) communicating with the at least one upper aperture and connecting to the channel for ventilation in cooperation with at least one of the openings.
Claim 5
Dependent Claim
66 words
The helmet as defined in claim 1, and further comprising disc means (14a) in each of the at least one conduit openings embedded in the helmet so as not to have any part projecting from an outer surface of the helmet and rotatable for drawing and discharging air into and from the helmet and for closing communication between the exterior and the interior of the helmet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-09 | 1991-05-11 | 1991-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-09 | 1995-05-11 | 1995-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-09 | 1999-05-11 | 1999-11-10 | $7700.00 | Window Closed / Lapsed |