The bowling ball tracking device of this invention employs a focused light source superimposed over the spotting portion of a bowling alley; and a photoelectric switch circuit having a plurality of photoelectric cells responsive to light from the light sources disposed in transverse rows at intervals along the bowling alley, and controlling lamps on a display. The illuminated display may also include conventional displays showing location of standing pins. The present device may also be adapted ...

A hinge for kitchen cabinets and the like is disclosed. The hinge includes means for sequentially pivoting the door about two pivot axes. The hinge includes a sequencing link which locks certain hinge members for pivotal movement about a first pivot axis, then unlocks those members while locking others so that pivoting takes place about another pivot axis. An optional automatic door closing mechanism is also shown.

An attachment for dispensing shot and powder in conjunction with a shell reloading tool is disclosed. The invention is intended for use with those types of reloading machines which sequentially dispense shot and powder into a number of shells being progressively reloaded on the work table of the reloading machine. The device includes a frame mounted on the reloading machine and has a series of pivotable members which carry the shot and powder bottles. A sliding bar operatively connected to the a...

A superior method and magnetron sputtering cathode apparatus in which some of the flux lines forming the closed-loop magnetic tunnel are made to change their curvature from convex to slightly concave within a region of the tunnel intersecting the sputtering target volume, and over a substantial fraction of the tunnel width. The improved field shape reduces the tendency of the eroded area of the target to become narrower as erosion progresses, and thereby allows more complete consumption of the t...

Failsafe apparatus and method are disclosed for controlling fluid flow from syringes. One or more syringes are positioned so that the piston of each syringe is caused to be precisely displaced to thereby safely deliver medicament from the syringe to a patient. To effect movement of each piston, a rack is provided, either as a part of the piston or secured thereto, and longitudinal movement of each rack is effected by rotating an associated pinion gear that is connected with a pulse-driven, stepp...

A basketball net-attaching device for generally tubular netting with upper generally loop-shaped net strings or cords, the device having an annular rim-engaging portion of a diameter corresponding to that of the standard rim of a basketball goal, the member being of inverted channel-shaped configuration and detachably secured over the rim or hoop, and is notched for attaching the upper net strings to the device. The device is preferably mounted with the aid of a lifting tool which has a generall...

A method and apparatus for performing electrosurgery with an ultra-sharp electrode composed of a refractory alloy, said electrode having a blunt end and a tip end, and a method for forming the ultra-sharp electrode by rotating about its axis a vertically held cylindrical rod composed of a refractory alloy and repeatedly withdrawing and replacing the rod into a pool of molten oxidizing agent.

A well tubing extension joint including a trash barrier. A top sub having an internal locking recess is connected on the upper end of a well packer mandrel. A trash barrier is connected on the lower end of an upper tubing string for releaseably engaging the top sub to permit the upper tubing string to move longitudinally relative to the packer and packer top sub. The trash barrier includes a body having locking collet fingers for releaseably locking the body in the top sub at the locking recess....

A medical device made from a material capable of being implanted in living tissue or transcutaneously inserted therein or of long term in-dwelling therein, which exhibits persistent antimicrobial activity in use, and containing a body of a synthetic or naturally occurring material having side surfaces and being capable of being swelled by penetration of a swelling agent and which has been subjected to such a swelling agent which contains completely dissolved therein at least one antimicrobial ag...

The invention provides a safety stand for storing one or more knives or knife blades. The stand may have a lock that automatically retains inserted blades or knives and prevents their inadvertent removal. The invention also provides for methods of using the stand for inserting and removing knife blades without a user having to touch the blade itself, thereby reducing the risk of being cut.