US4571741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ergonomic helmet means
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1984-12-26
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Granted: 1986-02-25
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Expires: 2004-12-26
Abstract
Abstract The ergonomic helmet means according to the invention comprises a pump equipped with a control system simultaneously ensuring the supply of air to the helmet and the manipulation of the vizor. This control system has an operative position ensuring the lowering of the vizor, its maintenance in the lowered position and normal ventilation, as well as an inoperative position ensuring the raising of the vizor, its maintenance in the raised position and reduced ventilation forming a screen around the operator's face. Application to the protection of personnel working in a dust atmosphere.
Inventors
- 👤 Jacques Guillaumot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:30
CPC Classifications
A; A42; A42B; A42B3/00; A42B3/04; A42B3/18; A42B3/22; A42B3/225; A42B3/28; A61; A61F; A61F9/00; A61F9/04; A61F9/06; A61F9/061; A62; A62B; A62B18/00; A62B18/003
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
117 words
An ergonomic helmet means of the type comprising a helmet-like part equipped with a vizor displaceable between a lowered position and a raised position, as well as a system for supplying air to said helmet-like part by means of an external air source equipped with a control means, wherein the control means simultaneously ensures the ventilation and manipulation of the vizor, said control means having an operative position simultaneously ensuring the lowering of the vizor and its maintenance in its lowered position, together with normal ventilation and an inoperative position simultaneously ensuring the raising of the vizor and its maintenance in the raised position, together with a reduced air admission forming a screen around the operator's face.
Claim 2
Dependent Claim
117 words
An ergonomic helmet means of the type comprising a helmet-like part equipped with a vizor displaceable between a lowered position and a raised position, as well as a system for supplying air to said helmet-like part by means of an external air source equipped with a control means, wherein the control means simultaneously ensures the ventilation and manipulation of the vizor, said control means having an operative position simultaneously ensuring the lowering of the vizor and its maintenance in its lowered position, together with normal ventilation and an inoperative position simultaneously ensuring the raising of the vizor and its maintenance in the raised position, together with a reduced air admission forming a screen around the operator's face.
Claim 3
Dependent Claim
95 words
An ergonomic helmet means according to claim 1, wherein the said control means comprise a pump serving as the external air source, said pump being equipped with a control having an operative position ensuring normal ventilation and an inoperative position ensuring a reduced air admission, said control also ensuring the manipulation of the vizor, a system for the filtration of pollutants equipping the said pump, a flexible pipe connecting the pump to said helmet-shaped part and several flexible hoses connecting the end of the flexible pipe opposite to the pump to a number of outlets.
Claim 4
Dependent Claim
48 words
An ergonomic helmet means according to claim 2, wherein at least one of the flexible hoses issues at the end of a tube having a longitudinal slit, whose width increases on moving away from the end at which the flexible tube issues, thus ensuring a laminar air flow.
Claim 5
Dependent Claim
37 words
An ergonomic helmet means according to claim 2, wherein at least one of the flexible hoses issues into a cylinder containing a mobile piston connected to one end of a spiral spring, which cooperates with the vizor.
Claim 6
Dependent Claim
41 words
An ergonomic helmet means according to claim 2, wherein it comprises an electric power supply and an element made from a reverse heat storing or retaining material, said element being electrically connected to the power supply and cooperating with the vizor.
Claim 7
Dependent Claim
56 words
An ergonomic helmet means according to claim 6, wherein the element made from the reverse heat storing material is a spiral spring, whereof one end is fixed to the helmet and whereof the other end is fixed to a spindle, which rotates with respect to the helmet and is integral with the vizor during this rotation.
Claim 8
Dependent Claim
18 words
An ergonomic helmet means according to claim 1, wherein the helmet is internally lined with a cork layer.
Claim 9
Dependent Claim
21 words
An ergonomic helmet means according to claim 1, wherein it comprises a small radio transmitter - receiver incorporated into 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) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |