FR1245955A - Combined exhalation valve and voice membrane - Google Patents
Combined exhalation valve and voice membraneInfo
- Publication number
- FR1245955A FR1245955A FR816186A FR816186A FR1245955A FR 1245955 A FR1245955 A FR 1245955A FR 816186 A FR816186 A FR 816186A FR 816186 A FR816186 A FR 816186A FR 1245955 A FR1245955 A FR 1245955A
- Authority
- FR
- France
- Prior art keywords
- exhalation valve
- voice membrane
- combined
- combined exhalation
- voice
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000012528 membrane Substances 0.000 title 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/10—Valves
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US788076A US3035574A (en) | 1959-01-21 | 1959-01-21 | Combination exhalation valve and speaking diaphragm |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1245955A true FR1245955A (en) | 1960-11-10 |
Family
ID=25143381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR816186A Expired FR1245955A (en) | 1959-01-21 | 1960-01-20 | Combined exhalation valve and voice membrane |
Country Status (2)
Country | Link |
---|---|
US (1) | US3035574A (en) |
FR (1) | FR1245955A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3228409A (en) * | 1962-03-19 | 1966-01-11 | Godel Edouard Paul Victo Raoul | Compensated action non-return valve, more particularly for respiratory mask |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3124130A (en) * | 1964-03-10 | Respirator with speaking diaphragm | ||
US3109425A (en) * | 1960-03-04 | 1963-11-05 | Electric Storage Battery Co | Respirator speaking diaphragm and exhalation valve unit |
US3291127A (en) * | 1963-10-30 | 1966-12-13 | Lee R Eimer | Audio exhalation valve for anesthetic nose mask |
US3348537A (en) * | 1965-03-01 | 1967-10-24 | Mine Safety Appliances Co | Combination breathing valve and speaking diaphragm unit |
GB8428640D0 (en) * | 1984-11-13 | 1984-12-19 | Avon Ind Polymers | Valve for respirator |
CA1311423C (en) * | 1988-02-10 | 1992-12-15 | Ronald E. Davis | Moulded speech transmitter |
US5385141A (en) * | 1992-04-16 | 1995-01-31 | Siebe North, Inc. | Speech diaphragm and exhalation valve |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB150232A (en) * | 1920-02-10 | 1920-09-02 | Cecil Rosling | Improvements in breathing apparatus |
US1730227A (en) * | 1923-03-31 | 1929-10-01 | Lewis M Mcbride | Gas mask |
GB572888A (en) * | 1942-03-18 | 1945-10-29 | Guy R Fountain Ltd | Improvements in or relating to respirators |
GB566088A (en) * | 1943-03-30 | 1944-12-13 | John Ambrose Sadd | Improvements in respirators |
US2684066A (en) * | 1951-11-13 | 1954-07-20 | Acme Prot Equipment Company | Pressure regulator structure for pressure-type gas masks |
DE1011732B (en) * | 1955-07-13 | 1957-07-04 | Draegerwerk Ag | Valve made of elastic material for breathing apparatus |
-
1959
- 1959-01-21 US US788076A patent/US3035574A/en not_active Expired - Lifetime
-
1960
- 1960-01-20 FR FR816186A patent/FR1245955A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3228409A (en) * | 1962-03-19 | 1966-01-11 | Godel Edouard Paul Victo Raoul | Compensated action non-return valve, more particularly for respiratory mask |
Also Published As
Publication number | Publication date |
---|---|
US3035574A (en) | 1962-05-22 |
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