Computer-aided design and analysis of circuits and semiconductor – Integrated circuit design processing – Physical design processing
Patent
1987-02-10
1989-06-06
Cuchlinski, Jr., William A.
Computer-aided design and analysis of circuits and semiconductor
Integrated circuit design processing
Physical design processing
116DIG9, 222 5, 141329, B64B 140
Patent
active
048361283
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to position indicating means and particularly to means for identifying a position or location of objects or persons not otherwise easily identifiable.
BACKGROUND ART
It is a common occurrence for persons when bushwalking, backpacking or undertaking like activities to become lost. Normally the location of such persons is difficult to detect even with the use of aircraft such as helicopters or the like. Similarly, if a person becomes lost overboard from a ship or other vessel, or if a vessel founders causing say the crew thereof to board liferafts, the location of such persons is extremely difficult. Often, failure to locate persons in the above predicament results in fatalities. Although various means are available to facilitate detection of such persons such as brightly coloured clothing or life jackets which may be worn by the person or dan buoys which may be thrown overboard to indicate the general area where the person has disappeared from a vessel, such means are of limited usefulness because they cannot be visually or otherwise easily located when one is some distance therefrom. Emergency signal beacons for transmitting a radio signal in the result of emergencies are also available, however, such devices are not suited to all situations and often lack reliability.
DISCLOSURE OF INVENTION
The present invention aims to overcome or alleviate at least some of the above disadvantages by providing position indicating means for facilitating the identification of positions or locations of objects or persons not normally readily locatable or identifiable such as persons lost overboard from vessels or persons lost in other circumstances on land. Other objects and advantages of the invention will become apparent hereunder.
With the above and other objects in view, this invention resides broadly in a device for providing an indication of a position comprising an inflatable balloon envelope, a container of compressed ligher-than-air gas connected to said balloon envelope, release means adapted to be actuated to permit said gas to be released from said container into said balloon envelope to inflate the latter and thereby permit said inflated balloon envelope to elevate and tether means secured to said balloon envelope and adapted in use to limit the height of elevation of said inflated balloon envelope.
BRIEF DESCRIPTION OF DRAWINGS
In order that the invention may be more readily understood and put into practical effect, reference will now be made to the accompanying drawings which illustrate a preferred embodiment of the invention and wherein:
FIG. 1 is a partly cut away elevational view of a position identifying device according to one form of the present invention in an inoperative stored attitude;
FIG. 2 is an enlarged sectional elevational view showing details of the connection between the balloon and gas filling capsule of the device;
FIGS. 3 and 4 illustrate the release mechanism for the balloon in an engaged and disengaged attitude respectively; and
FIG. 5 illustrates the use of the position identifying device of the present invention.
BEST MODE OF CARRYING OUT THE INVENTION
Referring to the drawings and firstly to FIG. 1, there is illustrated a position indicating or identifying device 10 according to a first form of the present invention comprising a capsule or cannister 11 of compressed gas suitably helium or other lighter-than-air gas, a connection and release assembly 12 mounted to the capsule 11 and an inflatable balloon 13 secured to the assembly 12. Preferably the capsule 11, connection assembly 12 and balloon envelope 13 are in their inoperative position, stored within a generally tubular container 14 of slightly greater diameter than the capsule 11. The container 14 is suitably formed in two opposed parts 15 and 16 which may be simply arranged so that one part 15 receives the balloon envelope 13 and connection assembly 12 whilst the other part 16 receives the capsule 11. The container parts 15 and 16 in the inoperative position of the device 10
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Cuchlinski Jr. William A.
Fallow Charles W.
Worth W. Morris
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