SE9501168L - Device for underwater communication - Google Patents
Device for underwater communicationInfo
- Publication number
- SE9501168L SE9501168L SE9501168A SE9501168A SE9501168L SE 9501168 L SE9501168 L SE 9501168L SE 9501168 A SE9501168 A SE 9501168A SE 9501168 A SE9501168 A SE 9501168A SE 9501168 L SE9501168 L SE 9501168L
- Authority
- SE
- Sweden
- Prior art keywords
- casing
- hammer
- electrical motor
- shaft
- wall
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/02—Audible signalling systems; Audible personal calling systems using only mechanical transmission
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/02—Divers' equipment
- B63C11/26—Communication means, e.g. means for signalling the presence of divers
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Percussion Or Vibration Massage (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
Abstract
The closed casing (4, 5) encloses an electrical motor (3) on the rotatable shaft of which a hammer rotates. The hammer with repeated strokes strikes against a striking surface on a wall in the casing. The wall through the hammer blows forms a vibrating membrane. The electrical motor, by means of a manoeuvring unit on the outside of the casing, can be adjusted between a rest position in which the hammer is inactive and an activated position in which the hammer rotates. The manoeuvring unit is coupled via a shaft (11) watertightly sealed against the casing to a current switch (10) enclosed in the casing for closing and breaking the current circuit in which the electrical motor and a battery unit are connected. The shaft is rotatable and capable of spring back.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9501168A SE504519C2 (en) | 1995-03-31 | 1995-03-31 | Communication device comprising closed unit for carrying by diver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9501168A SE504519C2 (en) | 1995-03-31 | 1995-03-31 | Communication device comprising closed unit for carrying by diver |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9501168D0 SE9501168D0 (en) | 1995-03-31 |
SE9501168L true SE9501168L (en) | 1996-10-01 |
SE504519C2 SE504519C2 (en) | 1997-02-24 |
Family
ID=20397767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9501168A SE504519C2 (en) | 1995-03-31 | 1995-03-31 | Communication device comprising closed unit for carrying by diver |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE504519C2 (en) |
-
1995
- 1995-03-31 SE SE9501168A patent/SE504519C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE9501168D0 (en) | 1995-03-31 |
SE504519C2 (en) | 1997-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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