US4821344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helmet
Assignee: Shoei Co Ltd
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Filing: 1987-02-25
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Granted: 1989-04-18
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Expires: 2007-02-25
Abstract
Abstract A helmet has a cap body is constituted by a shell. A buffer liner is mounted on an inner surface of the shell. A flexible top pad is disposed on a ceiling portion of an inner peripheral surface of the buffer liner, while a flexible fitted pad is disposed on the inner peripheral surface of the buffer liner excluding the ceiling portion. An air intake hole is made in a front wall of the cap body to penetrate the front wall. A through hole, which is connected to the air intake hole, is provided in the fitted pad. An inner opening of the through hole is covered with an air-permeable lining adhered to an inner surface of the fitted pad. A vertically extending elongated hole is provided in the fitted pad as the through hole, and a ventilation groove is provided in the top pad along an extension of the elongated hole.
Inventors
- 👤 Eitaro Kamata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/28; A42B3/281; A42B3/283; A42B3/10; A42B3/12; A42B3/18; A42B3/22; A42B3/24; A42B3/32
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
121 words
A helmet comprising: a cap body, said cap body including a shell and a buffer liner mounted on an inner surface of said shell, a flexible top pad being disposed on a ceiling portion of an inner peripheral surface of said buffer liner, a flexible fitted pad being disposed on the inner peripheral surface of said buffer liner excluding said ceiling portion, and an air intake hole being made in a front wall of said cap body to penetrate the front wall, wherein a vertically extending elongated hole being provided in the fitted pad as a through hole communicated to said air intake hole, and a ventilation groove being provided in said top pad along an extension of said elongated hole.
Claim 2
Dependent Claim
121 words
A helmet comprising: a cap body, said cap body including a shell and a buffer liner mounted on an inner surface of said shell, a flexible top pad being disposed on a ceiling portion of an inner peripheral surface of said buffer liner, a flexible fitted pad being disposed on the inner peripheral surface of said buffer liner excluding said ceiling portion, and an air intake hole being made in a front wall of said cap body to penetrate the front wall, wherein a vertically extending elongated hole being provided in the fitted pad as a through hole communicated to said air intake hole, and a ventilation groove being provided in said top pad along an extension of said elongated hole.
Claim 3
Dependent Claim
28 words
A helmet according to claim 1, wherein an air permeable lining covers an inner opening of said vertically extending elongated hole, said air-permeable lining being a pile lining.
Claim 4
Dependent Claim
26 words
A helmet according to claim 1, wherein a plurality of each of said air intake holes, said elongated holes and said ventilation grooves are provided, respectively.
Claim 5
Dependent Claim
21 words
A helmet according to claim 1, wherein said elongated hole is defined in a notched configuration with an upper end opened.
Claim 6
Dependent Claim
56 words
A helmet according to claim 1, wherein said through hole is defined to have a shape different from that of said air intake hole and a sectional area equal to or larger than that of said air intake hole, so that said fitted pad covers a portion of an inner opening of said air intake hole.
Claim 7
Dependent Claim
24 words
A helmet according to claim 1, wherein said ventilation groove is defined as a recessed groove in a surface of the single top pad.
Claim 8
Dependent Claim
27 words
A helmet according to claim 1, wherein said cap body is provided with a slide lid for opening and closing an inlet of said air intake hole.
Claim 9
Dependent Claim
146 words
A helmet comprising: a cap body, said cap body including a shell and a buffer liner mounted on an inner surface of said shell, a flexible top pad being disposed on a ceiling portion of an inner peripheral surface of said buffer liner, a flexible fitted pad being disposed on the inner peripheral surface of said buffer liner excluding said ceiling portion, and an air intake hole being made in a front wall of said cap body to penetrate the front wall, wherein a vertically extending elongated hole being provided in the fitted pad as a through hole communicated to said air intake hole, and a ventilation groove being provided along an extension of said elongated hole and defined by having said top pad being a plurality of pieces and adhesively bonding said pieces onto said buffer liner at a distance spaced apart from each other.
Claim 10
Dependent Claim
146 words
A helmet comprising: a cap body, said cap body including a shell and a buffer liner mounted on an inner surface of said shell, a flexible top pad being disposed on a ceiling portion of an inner peripheral surface of said buffer liner, a flexible fitted pad being disposed on the inner peripheral surface of said buffer liner excluding said ceiling portion, and an air intake hole being made in a front wall of said cap body to penetrate the front wall, wherein a vertically extending elongated hole being provided in the fitted pad as a through hole communicated to said air intake hole, and a ventilation groove being provided along an extension of said elongated hole and defined by having said top pad being a plurality of pieces and adhesively bonding said pieces onto said buffer liner at a distance spaced apart from each other.
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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) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |