Abstract: Combination transaction card and a credit card sized informative book with a multi page credit card sized book and a plastic coated top cover panel, the book consisting of a plurality of pages, and the plastic cover panel acting as a transaction card incorporating specific owner information such as a one of a kind number, a magnetic strip, bar code or an embedded micro-chip for the purpose of consumer purchasing transactions.

Abstract: A waterproof, tear-resistant accordion book with magnet covers that hold the book together, and adhere to magnetically susceptible surfaces. The book comprises an accordion-folded sheet of material that is tear-resistant and waterproof and can be preprinted or can be written upon. The covers are attached to the respective outer folded portions. The book also can be made with tear-off pages that extend beyond the covers, and can also be made to float by means of a buoyant layer. An alternate embodiment of the invention utilizes a thin plastic box contains containing audio components with a built-in keypad. The user inputs key combinations as printed in the book, and by virtue of a sound chip with pre-recorded sound, can hear played hundreds of phrases or sounds.

Abstract: A process for varying the density of porous plated metal foams. Especially useful for battery plate applications, a plated foam is coated with a slurry of predetermined size metal power, particularly nickel, and then sintered. The resultant density of the metal foam may be adjusted as needed.

Abstract: A sensor for measuring the density of a magnetic porous material such as foam. The sensor includes a load cell connected to a magnet. The magnet is spaced a predetermined distance away from the material. The load sensed by the pull of the magnet is translated into a perceivable density value.