A multi-differential agar culture medium which has the capability to differentiate between a large variety of closely related bacterial species, comprising tomato juice, peptonized milk, yeats extract, glucose, calcium pantothenate, a pH lowering agent, a non-diffusible buffering agent, metals and minerals, a wetting agent and stimulator of growth of lactic acid bacteria, an acid-base color indicator, a yeast suppressing agent, and agar.

A lighting control device is incorporated in an electric bulb socket (FIG. 2) and uses a rotary switch 2 to connect a mains terminal 10 to the bulb via a direct link, a diode 6 or a triac-diac circuit 4,5 R,C.sub.2 to provide different levels of illumination.

Disclosed is an embodiment of a conventional zipper in which a single slide fastener joins teeth mounted on three surfaces allowing closure of two separate compartments with one movement. Further disclosed is a slide fastener in which two surfaces are independently connected to a third common surface through separate slide fasteners but utilizing one common surface. Additionally disclosed are details of the fastening teeth which allow the sliders to be supported thereon.

A heat exchanger having a flow of air therethrough adapted for use in refrigeration systems includes a heat exchange coil and a plurality of sheet-like fins. The coil is formed of a plurality of tubes having a cooling medium flowing therethrough. Each of the fins are provided with openings for receiving the tubes in heat transfer relationship. A plurality of tabs are arranged in a surrounding relationship around the lower portion of the openings on the tubes for preventing the blow-off of conden...

A glow discharge magnetron sputtering apparatus having an improved multi-rod type target which produces a more uniform and higher rate of deposition on a substrate than obtainable in prior art devices, and which is particularly suitable for use in connection with the deposition of the magnetic materials. The apparatus includes a cathode comprising a cathode body, a backing plate connected removably with the cathode body, a copper-made common plate bonded to the bottom of the backing plate, and a...

A heat exchange device including at least one inner cylinder member and at least one outer cylinder member, defining therebetween one or more annuli through which pressurized heat exchange medium is forced to flow. One or more rotatable members having formed thereon a plurality of finger-like projections that define longitudinal continuous or segmented grooves are disposed within the annuli. The pressurized heat exchange medium imparts angular force to the rotatable member causing it to flow var...

An electronic golf score counter for counting each fairway and putting stroke and totaling hole scores, total scores for the front nine holes, totals for the second or back nine, and the 18-hole totals. The counter has LCD displays and a plurality of switch keys for entering and displaying the hole number, its par value, the tee and fairway and putting strokes for each hole, and their totals. A reverse feature permits a count-down to a selected hole for a review of correction of a score. One emb...

A stapler comprising a drive member and a staple magazine member. The stapler also comprises a clip driver including upper and lower casings and a connecting band. The connecting band has a staple guide grooves so as to function as an anvil. The clip driver is pivotally connected to the stapler by means of pivot member.

An electrically conductive adhesive tape used for electrical and electronic products to bond or fix an element to a support while maintaining an electrical conductibility between the element and support. The conductive adhesive tape has a structure including a resin film, a metal layer formed over one surface of the resin film by depositing a conductive metal over the surface of the resin film, and a conductive adhesive layer coated over the metal layer. The metal layer has a net-shaped structur...

A distributor for feeding the liquid-vapor mixture of refrigerant from the expansion valve to the core elements of an evaporator of an air conditioning system to provide equal distribution of both the liquid and vapor components. The distributor involves either a single header with separate orifices for the liquid and vapor in each core element or a pair of distribution headers to carry the separated component phases from a separator with an orifice for each phase in each core element where the ...