The invention relates to web packaging apparatus and methods for packaging a product between upper and lower webs.
Web packaging systems are known in the prior art, for example U.S. Pat. Nos. 5,170,611, 5,205,110, incorporated herein by reference. A web transport conveyor transports a lower web from upstream to downstream through a series of stations receiving a product in a lower web package at a loading station, and closing the package with the upper web at a closing station. A forming station upstream of the loading station forms a downwardly dependent product cavity pocket in the lower web into which the product is loaded. The forming station has a forming tooling die box supported on a base plate moveable between a first upper position in which the forming toolingthe water in an emergency situation.
The first category of devices consists of floats which are strapped to the backs of an individual, generally a child, so as to help maintain the body in a substantially, horizontal position. Such devices also allow unimpeded movement of the arms, so as to not interfere when used in the instruction of swimming technique. This device, however, is not suitable for keeping the body in an upright position, which is the necessary disposition, when swimming in the surf.
The second category of devices consists of items such as life jackets and the like which are flotation jackets which assist an individual to stay afloat in the water when in an emergency situation. They are not used in swimming instruction as they are intentionally quite