Abstract: An electrode assembly including a shell made of electro-conductive polymeric material in which is embedded a metallic insert such as a thin plate or wire mesh. The insert has a number of surface irregularities such as holes, indentations, or protuberances. The polymeric material shrinks after the insert is encapsulated within the shell resulting in contact pressure being exerted by the material on the irregularities and surrounding surface areas. One method of making the assembly includes coating the insert with a slurry including heat-curable polymeric material, which shrinks when cured. Another method includes encapsulating the insert within molten or liquidized polymeric material, which shrinks when cooled. Contact pressure is permanent because the high temperatures reached during thermosetting or overmolding are never reached while the assembly is being used in applications such as heating or sterilizing water, electrolysis, or oil well drilling.

Abstract: An automatic circuit controller for cooking food interposed between electrodes connected with a source of AC by electrical resistance in which the resistance increases until the food is cooked and rapidly declines is formed by a current switching element in series in one wire of the AC source and a current sensing element in series in another wire of the AC source. The sensed current is rectified, reduced in voltage, converted from analog to digital and applied to a microprocessor connected with the switching element for controlling the current applied to the food by delaying the time into every half cycle in response to current measuring circuitry and a zero crossing detector for triggering the switching element on. The microprocessor detects the current peak of electrical resistance of the food and stops the cooking action when the current declines to a predetermined percent of the peak.

Abstract: A lock system for the inactive door of a two door swinging combination is provided which prevents the active door from being latched or completely closed without locking the inactive door in place against the door frame and/or floor. Further, with the active door closed, the latch of the active door prevents movement of the slider of the inactive door lock mechanism and thereby prevents any unlocking of the inactive door until the latch of the active door has been removed and the active door opened.

Abstract: A deadbolt lock system is provided for a swinging door which prevents movement of the deadbolts from a locked position to an unlocked position when the door is open. Movement of the deadbolts from an unlocked to a locked position when the door is opened is prevented by a slide plate which is locked into a deadbolt deactivating position by a plunger which is biased outward when the door is opened. The system also provides for an unlocking of the deadbolts and an opening of the door with a single rotation of the inside handle.

Abstract: The present invention provides a sash lock for double hung windows. The sash lock is fabricated without a spring for biasing the cam into a closed or open position and further without a screw or fastening means to secure the lever, housing and cam together. The four primary components of the sash lock, specifically the lever, housing, cam and keeper mount may be fabricated from injection molded plastic as opposed to metallic materials.

Abstract: A door lock has a latch which is rotatable from a retracted position to an extended position by means of a linkage. A safety button extends from the latch when the latch is retracted. The linkage cannot be moved unless the safety button has been pressed, which occurs when the door is adjacent the door frame. This prevents the latch from extending and so damaging the keeper in the door frame. The linkage also has a notch which cooperates with a tang projecting from the housing. The tang an notch prevent the latch from being rotated from the extended position to the retracted position except by operation of the linkage. This feature makes it difficult to force the lock open without a key. In addition, one or more remote locks may be added to the main lock. With two remote locks it is possible to provide three anchor points for a door.