GB2294349A - Diver head up display unit - Google Patents

Diver head up display unit Download PDF

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Publication number
GB2294349A
GB2294349A GB9421051A GB9421051A GB2294349A GB 2294349 A GB2294349 A GB 2294349A GB 9421051 A GB9421051 A GB 9421051A GB 9421051 A GB9421051 A GB 9421051A GB 2294349 A GB2294349 A GB 2294349A
Authority
GB
United Kingdom
Prior art keywords
display unit
divers
pressure
heads
battery
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.)
Withdrawn
Application number
GB9421051A
Other versions
GB9421051D0 (en
Inventor
Christopher Hanson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9421051A priority Critical patent/GB2294349A/en
Publication of GB9421051D0 publication Critical patent/GB9421051D0/en
Publication of GB2294349A publication Critical patent/GB2294349A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B63C11/12—Diving masks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/006—Indicators or warning devices, e.g. of low pressure, contamination
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2201/00—Signalling devices
    • B63B2201/04—Illuminating
    • B63B2201/08—Electric light
    • 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
    • B63C11/12—Diving masks
    • B63C2011/121—Diving masks comprising integrated optical signalling means or displays for data or images

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Audible And Visible Signals (AREA)

Abstract

A divers display unit comprises a green and a red LED display mounted on a divers mask offset from the line of vision. The display is connected by a waterproof cable to a sender unit. The sender unit includes a pressure chamber 4 pressure switches 7 and 10 and a battery 6 capable of being recharged without being removed from its watertight compartment. Switch 7 is set to activate the green LED when the air pressure is at a safe level while the pressure switch 10 activates the red LED when the pressure falls below a safe level. <IMAGE>

Description

DIVER HEADS UP DISPLAY UNIT.
This invention relates to a divers breathing gas visual display and warning device.
One of the main causes of diving fatalities is still running out of the breathing gas while still submerged.Until the present day,the diver using self contained breathing apparatus has to physically check his own diving cylinder contents pressure using a gauge connected to the breathing set.
However, in conditions of bad or nil visability or while diving at night or in deep water without lighting equipment,a cylinder contents gauge cannot be read and is therefore rendered useless,ln commercial diving,valuable bottom time is often wasted on the task with the diver having to continually check his breathing gas supply.
The aim of this invention is to provide a visual display at all times in front of the divers eyes without affecting his/her field of vision,This would allow the diver to constantly revue his/her breathing gas state regardless of the underwater conditions.
According to the present invention there is provided a divers heads up display unit comprising of two seperate units linked with a watertight connecting cable.
The SENDER UNIT consists of a main pressure chamber fitted with two number pressure sensitive switches. The chamber is connected via a suitable flexible hose to the high pressure port on the first stage of the divers demand valve.
A suitably restricted out port is provided for the connection of a cylinder contents gauge if so required Contained inside a seperate watertight compartment are a rechargable battery source,electrical wiring,an on/off switch and a recharging port for the forementioned battery A watertight connection cable is provided to enable the display unit to connected or disconnected while still underwater.
The DISPLAY UNIT is supplied with the corrosponding connection cable,and two number L.E,D.'s (light ewniting diodes),one being a large bright red when illuminated,the other being smaller,less bright and green in colour when illuminated.These are contained within a watertight housing which can be fitted flush to the divers faceplate slightly offset to the divers line of vision,The housing is constructed so that the L.E.P.'s are visible from both sides,as this would allow another diver to read the display unit.
A specific embodiment of the invention will now be discribed by way of example with reference to the accompanied drawings in which: FIGURE 1 shows in cross section the sender unit and associated components; FIGURE. 2 shows in elevation the display unit; FIGURE 3 shows in elevation the sender and display units coupled with the watertight connection cable.
Refering to the drawings the sender unit A is connected to the display unit B using the watertight connector 1.
The unit is then connected to the high pressure air or mixed gas supply on the divers demand valve(not shown) via the supply hose 2,Note that a suitable cylinder contents pressure gauge or blanking plug (not shown)must be fitted to the outlet port 3 prior to the breathing gas being turned on.
When the breathing gas supply has been turned on,the pressurechamber 4 is flooded with high pressure breathing gas,The on/off switch 5 is then set to the on position,allowing the current to flow from the battery 6 .This causes pressure switch 7 which is rated at 50 BAR (50 kg/m2 ) to make a ground, causing a circuit to be made.( 50 BAR is the internationally recognised safety gas reserve for diving ).Once this circuit is made,the green L.E.D. 8 on the display unit lights up informing the diver that the cylinder contents pressure is over the required reserve, As the diver breathes from the demand valve (not shown ) the cylinder pressure drops along with the pressure in the pressure chamber 4, When the pressure drops to 50 BAR (50 kg /m2) ,the red L.E.D.9lights up due to the second pressure switch 10 making a circuit,as it is rated to make a ground at pressures of 50 BAR and below, This alerts the diver to the fact that the safety reserve pressure has now been reached,and that normal ascent procedures should now begin.
Once the pressure drops below 50 BAR the green light extinguishes as the circuit is broken at pressure switch 7,leaving the red L.E.D.9 illuminated.
This informes the diver that he/she is exceeding the reserve gas limit and should ascend immediately.
To remove the unit on the surface, turn off the power at the on/off switch 5, Release the gas pressure by turning off at the cylinder and purging the demand valve (not shown ). The unit can then be removed and the battery recharged using the watertight port 11, The retaining clip 12 is an accesory only, for clipping connecting cable 1 to the divers mask strap (not shown), Wiring schematicts are simple and therefore ommited from the drawings for clarity,

Claims (1)

  1. CLAIMS 1, A divers heads up display unit consisting of two seperate units linked with a watertight connection cable, the sender unit containing the pressure chamber, electrical conections and switches and the rechargable battery source,and the display unit with the L.E.D.'s designed to fit to the face plate of the divers mask or helmet.
    2, A divers heads up display unit as claimed in claim 1 wherein means are provided for connection to a divers breathing set via a high pressure hose.
    3, A divers heads up display unit as claimed in claim 1 or claim 2 wherein pressure switches encorporated into the sender unit illuminate the relevant L.E.D. on the visual display unit according to the pressure within the pressure chamber, 4, A divers heads up display unit as claimed in claim 1 or claim 2 or claim 3 wherein provision is supplied to enable the rechargable battery to be recharged without removing the battery from the watertight compartment.
    5, A divers heads up display unit as claimed in any proceeding claim wherein means are provided for the fitting of a cylinder contents pressure gauge to the outlet port.
    6, A divers heads up display unit substantially as described herein with reference to figures 1 and 2 of the accompanying drawings,
GB9421051A 1994-10-19 1994-10-19 Diver head up display unit Withdrawn GB2294349A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9421051A GB2294349A (en) 1994-10-19 1994-10-19 Diver head up display unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9421051A GB2294349A (en) 1994-10-19 1994-10-19 Diver head up display unit

Publications (2)

Publication Number Publication Date
GB9421051D0 GB9421051D0 (en) 1994-12-07
GB2294349A true GB2294349A (en) 1996-04-24

Family

ID=10763068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9421051A Withdrawn GB2294349A (en) 1994-10-19 1994-10-19 Diver head up display unit

Country Status (1)

Country Link
GB (1) GB2294349A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752383A1 (en) * 1996-08-16 1998-02-20 Intertechnique Sa Oxygen mask for aeronautical use with various operating modes
EP0860354A1 (en) * 1997-02-19 1998-08-26 HTM SPORT S.p.A. Device for giving warning of conditions of danger and/or emergency for scuba diving
GB2402885A (en) * 2003-06-20 2004-12-22 Uri Baran Head up display for diving apparatus
GB2412324A (en) * 2004-03-22 2005-09-28 Clipper Data Ltd Self-contained breathing apparatus with optical display
GB2420506A (en) * 2004-11-26 2006-05-31 Graham Hatton-Downward Light warning system for diving apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033818A (en) * 1989-01-13 1991-07-23 Barr Howard S Electronic diving system and face mask display
WO1993000134A1 (en) * 1991-06-20 1993-01-07 Hales Lynn B Field of view underwater dive computer system
US5191317A (en) * 1991-09-09 1993-03-02 Undersea Industries, Inc. Low air warning system for scuba divers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033818A (en) * 1989-01-13 1991-07-23 Barr Howard S Electronic diving system and face mask display
WO1993000134A1 (en) * 1991-06-20 1993-01-07 Hales Lynn B Field of view underwater dive computer system
US5191317A (en) * 1991-09-09 1993-03-02 Undersea Industries, Inc. Low air warning system for scuba divers

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2752383A1 (en) * 1996-08-16 1998-02-20 Intertechnique Sa Oxygen mask for aeronautical use with various operating modes
US5913307A (en) * 1996-08-16 1999-06-22 Intertechnique Breathing protection equipment with operating mode indication
EP0860354A1 (en) * 1997-02-19 1998-08-26 HTM SPORT S.p.A. Device for giving warning of conditions of danger and/or emergency for scuba diving
US6054929A (en) * 1997-02-19 2000-04-25 Htm Sport S.P.A. Device for giving warning of conditions of danger for scuba diving
GB2402885A (en) * 2003-06-20 2004-12-22 Uri Baran Head up display for diving apparatus
WO2004112905A1 (en) * 2003-06-20 2004-12-29 Uri Baran Diving equipment monitor
GB2412324A (en) * 2004-03-22 2005-09-28 Clipper Data Ltd Self-contained breathing apparatus with optical display
GB2412324B (en) * 2004-03-22 2008-09-17 Clipper Data Ltd Self-contained breathing apparatus with optical display
US7571726B2 (en) 2004-03-22 2009-08-11 Clipper Data Limited Self-contained breathing apparatus
GB2420506A (en) * 2004-11-26 2006-05-31 Graham Hatton-Downward Light warning system for diving apparatus
WO2006056799A1 (en) * 2004-11-26 2006-06-01 Graham Hatton-Downward Warning system
GB2420506B (en) * 2004-11-26 2010-01-13 Graham Hatton-Downward Warning system
AU2005308627B2 (en) * 2004-11-26 2011-09-29 Graham Hatton-Downward Warning system

Also Published As

Publication number Publication date
GB9421051D0 (en) 1994-12-07

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)