摘要:
System and methods for providing anti-condensation system are disclosed. A relative humidity (RH) sensor signal from a sensor on or near a control surface is received. An AC power input is received. A phase of the AC power input is modulated at least partly in response to the sensor signal in such a manner that a phase-modulated AC power output provided to a heater is a) substantially constant at a first power level (P1st) in a low RH region ranging from 0% RH to a first RH (RH1), b) varying as a function of the sensor signal from P1st to a second power level (P2nd) in an intermediate RH region ranging from RH1 to a second RH (RH2), and c) substantially constant at P2nd in a high RH region beginning at RH2.
摘要:
A damping device that includes an arm having a longitudinally extending slot and a cylinder cut-out defined therein, and a damping assembly secured in the cylinder cut-out. The damping assembly includes a cylinder housing with a chamber having a piston and fluid disposed therein. The piston includes a rod with a head on a distal end thereof that extends outside the cylinder housing and into the slot. The damping assembly includes a biasing member extending between the cylinder housing and the head.
摘要:
A door for a refrigerator display case is provided. The door includes a glass panel having a surface coated with a low-emissivity soft coating. A refrigerator display case is also provided. The display case has a refrigerated enclosure and a door with three glass panels. The middle glass panel is coated with a low-emissivity soft coating.
摘要:
A light source for illuminating an area includes a cold cathode light source (82), and input and an output, and a converter (78) coupled to the light source. The converter changes the current from an input alternating current supply to a lamp alternating current supply suitable for operating the lamp, for example from utility line voltage and current and changing it to an oscillating direct current supply. A display case such as a refrigeration unit may include an alternating current supply and a light source for illuminating an area within the display case. A current converter is coupled between the alternating current supply and the light source for changing the current from the supply at one voltage and frequency to a second voltage and a second frequency. In one preferred form, the light source is a cold cathode lamp at about 8500 Kelvin to include more blue light.
摘要:
A lighting system and components are described for a lighting assembly (36), including a socket (44) having a socket body and an electrical connector with a seal in the socket to seal around a light source. The socket is preferably configured to be independent of the mounting arrangement for the lighting assembly. An insulator (90) is also disclosed for a lamp (42) such as a fluorescent lamp having a body which protects the contact (54) on the lamp so as to form a recessed lamp conductor. The combination of a socket and lamp insulator is also disclosed for providing a socket and insulator assembly for reducing the possibility of injury or damage due to high open circuit voltage, environmental effects and the like. Additionally, a lighting assembly is disclosed incorporating the insulator, socket and mounting arrangements.
摘要:
A voltage regulator circuit is described which includes a circuit input (48) and a circuit ouput for coupling to a load (74). A circuit interrupt element (82) is coupled between the input (48) and the load (74) for breaking the circuit between the input (48) and the load (74). A sensing circuit (76) between the input (48) and the output senses when a signal applied to the load (74) exceeds a defined limit. A trigger circuit (72) coupled to the sensing circuit (76) causes the circuit interrupt (82) element to trip when the sensing circuit (76) senses a signal which exceeds the defined limit.
摘要:
One aspect of the invention features a refrigerated display case door that includes a hinge rail, a panel assembly, and a handle. The hinge rail includes a channel portion and a hinge receiving portion. The panel assembly includes two panes of glass bounding a sealed space between the panes, and includes a first edge disposed within the channel portion of the hinge rail. The handle is secured to a surface of the panel assembly proximate a second edge of the panel assembly opposite the first edge. The sealed space is closed by a peripheral seal disposed between the panes along a periphery of the panes. The peripheral seal includes a first material extending along a first portion of the periphery and a second material extending along a second, different portion of the periphery, where the second material is more transparent to visible light than the first material.