Abstract: An electronic device that functions as an area-intrusion informing device for announcing the unauthorized entry into an enclosure or area which has at least one access opening and closing means. The device uses components that are small for inconspicuous insertions, or for surface mounting, and preferably utilizes a dummy hinge arrangement as an electrical conductor between the various components. The device is used for access doors, windows, filing cabinets, desk draws, closets, and the like, and typically includes at least one light emitting diode, an optional numeric liquid crystal display, a timer, and alert signaling and reset components. The components act together to provide notification of illegal entry between the times of departure, and arrival, of authorized users of the enclosure or area. A simple security alert system is provided.

Abstract: An electronic device is provided that functions as an area-intrusion informing embodiment for announcing the unauthorized entry into an enclosure or area which has at least one access opening and closing means. The invention is not intended to replace conventional alarm systems, but to provide its' own unique functional identity. The invention comprises components that, when installed, will function as a tamper proof device, whose components are packaged in a combination of at least one container, to facilitate remoteness, and substantially small for inconspicuous insertions, or surface mounting. The Access Annunciator is ideal for access doors, windows, filing cabinets, desk draws, closets, bottles, handbags, briefcases, envelopes, boxes and the like, and typically includes at least one light emitting diode, an optional numeric liquid crystal display, a timer, an alert signaling means, and resetting means.

Abstract: An electronic device is provided that functions as an area-intrusion informing embodiment for announcing the unauthorized entry into an enclosure or area which has at least one access opening and closing means. The invention is not intended to replace conventional alarm systems, but to provide its' own unique functional identity. The Invention comprises components that, when installed, will function as a tamper proof device, whose components are packaged in a combination of at least one container, to facilitate remoteness, and substantially small for inconspicuous insertions, or surface mounting. The Access Annunciator is ideal for access doors, windows, filing cabinets, desk draws, closets, and the like, and typically includes at least one light emitting diode, an optional numeric liquid crystal display, a timer, an alert signaling means, and resetting means.

Abstract: An electronic device is provided that functions as an area-intrusion informing embodiment for announcing the unauthorized entry into an enclosure or area which has at least one access opening and closing means. The invention is not intended to replace conventional alarm systems, but to provide its' own unique functional identity. The Invention comprises components that, when installed, will function as a tamper proof device, whose components are packaged in a combination of at least one container, to facilitate remoteness, and substantially small for inconspicuous insertions, or surface mounting. The Access Annunciator is ideal for access doors, windows, filing cabinets, desk draws, closets, and the like, and typically includes at least one light emitting diode, an optional numeric liquid crystal display, a timer, an alert signaling means, and resetting means.

Abstract: A railroad car as a chassis of two parts and which are connected together by a coupling device. By lifting one end of the chassis by jacks it is possible to remove a railroad type truck and replace it with truck fitted with wheels and tires. The coupling is then opened and each half of the railroad car can be converted into a semi-trailer connected by means of a pivot to a tractor truck.

Abstract: A device for harvesting grapes or other berries having a plurality of hollow cylindrical wheels. Each of the wheels in turn has a wide tire having a rectilinear perforated circumference. The tires are maintained at reduced pressure by connection to a storage reservoir which is maintained under vacuum. The cylindrical wheels serve as presses and are arranged in pairs along two parallel vertical axes. The wheels are maintained in contact by springs which assure the pressure necessary to burst the berries or grapes which pass between the cylinders. After bursting, the fruit is drawn across and through the perforations of the cylinders and is conducted towards the storage reservoir. The device can further be utilized for harvesting other types of fruits.

Abstract: A process for reducing the sodium chloride content of crystalline potassium salts without the use of successive recrystallization. The crystalline potassium salts having a sodium chloride content greater than about 0.8 percent by weight are subjected to compacting and crushing to provide a crystalline product having an average particle diameter less than 1.6 millimeters. The crystalline product is leached with a brine at least about 80 percent saturated with said potassium salt and less than 50 percent saturated with sodium chloride to produce a crystalline potassium salt product containing less than about 0.35 percent by weight of sodiumchloride.

Abstract: An airstream is established and flows about a resistance heater element in an electrical appliance. The heater element is energized by a cyclical potential. A temperature control circuit is provided which includes a switch connected in series with a heat sensor for applying the cyclical potential to the heater. A half-wave rectifier in the control circuit is electrically connected in series with the switch and across the heat sensor. Energization of the heater heats the airstream to an operating temperature T.sub.1. The heat sensor is operable to detect an undesired increase in temperature above a safe limit temperature T.sub.2 which is greater than T.sub.1. At a temperature greater than T.sub.2 the heat sensor automatically opens the series circuit to interrupt energization of the heater. During the open circuit condition of the heat sensor the half-wave rectifier is operable for applying half-cycles of the cyclical potential to the heater.