Abstract: The present invention is directed to an underground as well as above ground system and method of determining the intrusion into a security zone. One or more transceivers would transmit a unique electromagnetic signal which would power a response from one or more RFID transponders. Each of the transponders would transmit a unique code to the transceiver indicating that there has been no intrusion in the vicinity of that transponder. Failure of a transponder to receive a signal produced by a transponder, would indicate the existence of an intrusion. The transponders as well as the transceivers can be provided in a PVC pipe buried in the ground, or provided in or on a structure located on or above the ground.

Abstract: An electrical generator utilizes power produced by falling weights. Falling weights are connected to long arms which turn a shaft. The shaft, through a series of gears, provides power to the generator.

Abstract: A panel edge joint formed on opposing edges of a first panel (12) and second panel (22) for use in refrigeration units. The panel edge joint comprises a male part (10) extending along at least one edge of the first panel (12) and a corresponding female part (20) extending along at least one edge of second panel (22) wherein male part (10) comprises a deformable sleeve (30) forming an outer covering of male part (10). Engagement of male part (10) with female part (20) forms a seal between the first panel (12) and second panel (22).

Abstract: In exchangeable spectacle frames, in which the side arms and bridge are fastened to the lenses or central part of the spectacle frame by a support element, the support element is a rod-shaped, rail-shaped or plate-shaped metal part with a metallic threaded pin and an additional metallic positioning pin or threaded pin. The metallic or plastic end of the side arm on the side of the lens, or the connecting element between the support element and metallic or plastic side arm, is shaped with recesses which are adapted to the form of the support element, have the same length as the metallic part and engage the metallic part. The recesses in the side arm form at least two catches on the lateral, inner plastic interfaces which interact with the threaded pin and positioning pin. Alternatively, the side arms or bridges are made of an elastic material with a slit-shaped recess, in which recesses are located for form-fittingly receiving the pins of the support element and locking them after their insertion.

Abstract: A hydraulic drive apparatus comprises a main pump for pumping hydraulic fluid through a hydraulic load, a charge pump for continuously pumping pressurized hydraulic fluid to the main pump, and a hydraulic fluid cooler. At least a portion to the hydraulic fluid pumped through the hydraulic load is returned under pressure to the charge pump and the charge pump pumps the pressurized hydraulic fluid through the hydraulic fluid cooler to the main pump.

Abstract: A method for displaying information includes identifying computer-readable service code at a service site, which code, when read by a client computer via a network, causes the computer to display at least one service page containing service information. At least a portion of the service code is selected for inclusion in a service component containing at least a portion of the service information that corresponds to the selected code. A pointer is generated, indicating a location at which the service component is accessible, for inclusion of the pointer in host code accessible to the client computer from a host site, which is separate from the service site and is accessible via the network, the host code, when read by the client computer, causing the computer to display a host page containing host information. An invocation of the pointer by the client computer is received at the location when the client computer accesses the host page.

Abstract: A hydraulic or other type of high-pressure hose fitting can be temporarily sealed using a special type of plug. The plug is made of a rubber like material and can be used both as a male plug or a female plug. The plug contains a plug body with a tapered end portion that can be pushed into and seal against the tapered seat of a female hydraulic fitting. The plug also contains an internal open ended bore that can be pushed over a male fitting with the threads of the male fitting tightly pressing into the rubber material to form a seal and minimize the plug being blown off the fitting.

Abstract: The invention relates to a method for controlling an ultrasonic unit f an ultrasonic cleaning system with at least one control unit, one generator unit and one hand-held unit containing the ultrasonic unit and one switching module provided for starting the ultrasonic unit, wherein mechanical oscillations can be generated via the ultrasonic unit and transmitted to an instrument that is mechanically connected to the ultrasonic unit. In a preferred embodiment, the resonant frequency required for operation of the ultrasonic unit in resonance is determined by a control routine executed in the control unit, and a control signal (ss) based on the determined resonant frequency is generated in the generator unit and is sent to the ultrasonic unit for operation of the ultrasonic unit in resonance.

Abstract: An engine after-cooling system (10) comprises an after-cooler (11) for cooling compressed air which is output from a compressor for combustion by an internal-combustion engine, a heat exchanger (19) for cooling a coolant which is output from the after-cooler (11), a pump (21) for continuously pumping the coolant through the system (10), an outlet air temperature sensor (27) for sensing the temperature of the compressed air after being cooled by the after-cooler (11), a coolant temperature sensor (17) for sensing the temperature of the coolant output from the after-cooler (11), and a controller (26) for controlling the flow-rate of coolant through the system (10) in response to the sensed air and coolant temperatures.

Abstract: A vest surrounds the animal's torso. Slings for supporting the front or rear legs can be attached to the vest. Besides straps with rings, the vest may have monitors for remote monitoring of the animal's vital signs.

Abstract: A device used in conjunction with a grave marker or headstone for illuminating a grave site during the night. An enclosure unit is directly affixed to the grave marker or provided in a stand alone unit associated with the grave marker. The enclosure also includes audio material, such as an obituary which can be played by depressing or engaging a switch associated with the enclosure. Both the illumination device as well as the audio material are powered by a rechargeable battery connected to a solar panel provided directly on the enclosure.

Abstract: An apparatus for applying and fusing a powder coating to substrates of various composition uses two lasers to accurately heat the coating to the optimum temperature. A second laser has less power and heats a smaller area than the first laser. Temperature control is enhanced by the ability to superheterodyne two lasers at separate frequencies. This allows for better absorption of certain materials being fused by the laser. Another common problem associated with laser processing occurs as the polymer heats up. During the heating process the spectral lines are Doppler broadened and slightly shifted. This can affect the absorption of a laser of a fixed wavelength. With the present invention, the optimum laser frequency can be turned to a more optimum frequency for absorption still with sufficient power for fast efficient thermal processing.