Safety diving backpack

A safety diving backpack, specifically a one-piece, detachable diving backpack, that may serve to dispose water-resistant handlights, life buoys, kettles and spin reel, complete with wires or ropes in the hollow cylinder and in the spaces as provided on both sides and on the underside thereof respectively. The linkage as provided by such wire-ropes to fellow divers allows divers to ask for help from such fellow divers in case of an emergency that befalls a diver equipped accordingly. In addition, by virtue of the striking marks and alarm signals of the headlights and life buoys released at the outbreak of fatal tides or other dangerous situations to the diver, the rescue teams can detect them in time so as to give necessary help to the endangered diver.

BACKGROUND OF THE INVENTION 
The present invention provides for a novel, but simply structured and 
operated safety diving backpack that protects human lives by minimizing 
accidents to which the divers equipped therewith are exposed by sending 
out striking alarming marks and signals on the surface in a timely manner 
once a dangerous situation develops. 
As leisure time recreation activities become more and more in fashion 
across the globe, many people seek diving pleasures underwater in seaside 
resorts or cliffy seashores within their easy reach, or where such beach 
waters are accessable to them at whatever costs they can afford. Diving 
activities have actually become a favorable pastime everywhere, but, 
regrettably, accidents in connection with diving activities have often 
occurred, somtimes with fatal results. The sudden development of a 
dangerous situation, allows little time to cope with it. A diver involved 
cannot react quickly enough to save his own life or assist his fellow 
diver. Such dangers can reasonably be accounted for by affected visionary 
faculties underwater, deceptively characterized underseas formations, 
together with abrupt, unpredictable and unexpected changes in 
temperatures, undercurrents, and atmospheric pressures underseas. The 
conventional and prevalent diving backpacks are almost all designed to 
serve to carry air cylinders only, with practically no other life-saving 
provisions whatever. Thus, they will be of little help if an unexpected 
incident should take place while they are worn on the back of a diver 
underseas. 
SUMMARY OF THE INVENTION 
The primary objective of the present invention, therefore, is to provide, 
in view of the shortcomings of existing diving backpacks such as those 
related to above, a novel diving backpack to secure the safety of a diver 
underseas anytime. 
A further objective of the present invention is to provide a safety diving 
backpack characteristic in that a water kettle is provided attached to the 
hollow center of the backpack to provide drinking water for a diver 
equipped accordingly while he, having experienced an incident underwater 
or on the surface, is floating or drifting on the surface of the sea 
awaiting rescue. To stay alive, he may consume or remove the water from 
the kettle and leave it sealed, so that the kettle acts as a float 
overwater to attract the attention of the rescue teams. 
Still another objective of the present invention is to provide a safety 
diving backpack, characteristic in that a hollow cylinder is provided on 
either side of the backpack, complete with a water-resistant alarming 
handlight and an inflatable emergency buoy painted with a colorful and 
eyecatching coating within, in order that, by virtue of the duplex alarm 
signals generated by the flashing handlight and the buoy, the rescuing 
vessles and aircraft will have a better chance of discovering the 
endangered divers. Also, on top of the hollow cylinder, there is a small 
space to place fishhooks so that if a diver waiting for help is hungry, he 
can link the fishhook to a rope and fish. 
Still another objective of the present invention is to provide a safety 
diving backpack, characteristic in the provision of a spin reel, wound 
with nylon ropes, as attached to the bottom of the central encasement 
thereof, in order that divers that are active underseas in a group, will 
be able to link to each other with the nylon ropes to provide mutual 
assistance when the visibility underseas is poor. More specifically, as 
cavities and deep holes abound underseas, especially in locations close to 
the sea beds, the reel and rope allow divers to trace back to the surface 
with such life ropes as extended from a near-shore point or a floating 
boat or the like, thereby minimizing casualties during dives in the waters 
offshore.

DETAILED DESCRIPTION OF THE INVENTION 
Referring to FIG. 1, it is seen that the present invention of safety diving 
backpack 20 is chiefly composed of a one-piece backpack body 21, a 
cylindrical tube 30, 40 as attached to either side thereof, pack fastening 
ring hooks 24, 22, and 22A as provided on the upper neck and both sides on 
the under section thereof. The pack fastening ring hooks serve to 
accommodate passing of pack straps, not shown in the drawing, for 
fastening on the back of a diver before operating under water. On both 
ends of the midmost section of the backpack 21 there are provided two 
longitudinal groove ways 26 to facilitate passing of the fastening straps 
of the oxygen container, not shown in the drawing, the oxygen container 
being mounted in groove 27, as illustrated in FIG. 4 and FIG. 5. 
Referring to FIG. 2 and FIG. 7, it is seen that a water-resistant handlight 
32 and life buoy 42 are contained in the hollow cylinder 30, 40 
respectively; the watertight handlight 32 serves for underwater 
illumination or else serves to evince flashing emergency signals to advise 
the rescuing teams, vessels, and aircraft of the present position of 
endangered diver floating over the surface. The usefulness of such a 
watertight handlight becomes apparent at night or in bad weather 
conditions accompanied with poor visibility. The life buoy 42, as 
illustrated in FIG. 7, is a long, slim cylinder, with an air port 43 
provided on top, to facilitate blowing to formation when needed. The buoy 
is stored deflated in the backpack. On the bottom of the buoy, there is 
provided a valve structure 47 to control the passing of water into the 
water layer 46. The gravity due to the water allowed into the water layer 
46 serves to set the buoy 42, blown to formation, standing straight above 
the surface of the waters, in sufficient stability, as high as 2M clear of 
water. The characters of "SOS" are marked on the coating of the buoy in 
contrast to attention-drawing colors of the coating, for example, red, 
yellow or other colors, so that search and rescue teams, be they vessels 
or aircraft, will be able to spot the buoy from a remote position with 
ease. The top of either hollow cylinder 30, 40 is provided each with a 
watertight cock, not shown in the drawing, to facilitate use. 
Referring to FIG. 2, FIG. 4, FIG. 5, and FIG. 6, on the underside of the 
backpack 21 there is provided a sunk-in, small chamber 23 to facilitate 
the introduction of a water kettle 50, which is then bolted into the pack 
by the interlocking of two lateral flanges 50B, complete with round 
grooves on top that are integrated to the kettle 50 with two locking 
screws 14, 14A against the counterpositioned thread holes as provided on 
the bottom of the backpack 21, not shown in the drawings. The bottom of 
the kettle 50 is complete with two access holes for tubes, secured by two 
cock caps 51, as shown in FIG. 5, which can be removed to supply water 
beforehand to maintain the life of the endangered diver for rescue while 
floating on the surface. Referring to FIG. 6, it is seen that a notched 
groove 50A is provided at the middle of the base of the kettle 50 so that 
a reel wheel 10 wound with nylon ropes 12 can be snapped in via the other 
terminal hole of the kettle 50 by means of an L-shaped retainer rod 16, 
thence piercing through a central hole groove, not shown in the drawing, 
as provided in the reel wheel 10 for extension to the other end of the 
kettle, and then fastened with a bolting screwnut 17. The idea is such 
that divers underwater may secure a firm link with each other by the 
connection of the nylon ropes 12 as provided in each backpack to be 
secured on the back of the respective divers concerned so as to take 
necessary assistance actions in case of incidents befalling any member of 
the diving team operating underwater. 
The safety diving backpack 20 as covered by the present invention, is 
complete with safety devices such as the watertight handlight 32, the life 
buoy 40 and which altogether is easily portable. The bottom of them are 
all attached with nylon ropes, not shown in the drawing, linked to the 
hollow cylinders 30, 40, to avoid getting lost underwater due to 
carelessness or maladroitness on the part of the driver equipped 
accordingly. The life buoy, once blown to formation, serves to assist 
floating to help the diver reach the surface in time and discharge the 
help-soliciting effects. When on the surface, together with the diver, 
while an incident takes place, the kettle 50 can also be floated on the 
surface to add the help-soliciting effects. By reason of all these, the 
present invention is therefore believed to be a multi-function salvage 
safety diving backpack. 
The present invention is a salvage equipment which has been proven to be of 
enormous help in case of any kind of emergency occurring underwater by the 
efficient dissemination of the emergency help-soliciting marks and signals 
to the search and rescue teams, thus minimizing casualties.