Abstract: A holding mechanism 10 for holding an ink ribbon 20 includes a transparent shell 11 and a board 12. The transparent shell 11 of the ink ribbon 20 is provided with wind slack preventive portions 11a to 11d which prevent rotations of a feed bobbin 21 and reel bobbin 22, and wind meandering preventive portions 11e, 11f which bears down an axial end 23a of a film 23. The ink ribbon 20 can be stably held by the holding mechanism 10 during a transportation and a loading thereof. The transparent shell 11 is provided with support portions 11g, 11f which improve a stability when loading.

Abstract: A compressor has a first housing, a second housing, a valve plate, a suction valve, a discharge valve and a sealing coat. The first housing includes a compression chamber. The second housing includes a suction chamber and a discharge chamber. The valve plate is interposed between the first housing and the second housing. The suction valve is disposed between the first housing and the valve plate. The discharge valve is disposed between the second housing and the valve plate. The valve plate forms a suction port intercommunicating the suction chamber and the compression chamber, and a discharge port intercommunicating the discharge chamber and the compression chamber. The sealing coat made of soft metal is provided between the suction valve and the valve plate, and/or between the discharge valve and the valve plate.

Abstract: A piston type compressor has a housing, a cylinder block and a piston. The cylinder block is fixed to the housing. The piston is accommodated in the cylinder block. A piston ring is provided between the cylinder block and the piston. A sealing coat is made of soft metal, and is provided between the piston ring and the piston.

Abstract: A first external refrigerant circuit includes a condenser, a pressure reducing device, and an evaporator. A compressor is directly connected to a drive source of the vehicle to permit power transmission and compresses a refrigerant by being driven by the drive source at all times. The compressor and the first external refrigerant circuit form a refrigerant circulation circuit. A second external refrigerant circuit connects a discharge chamber and a suction chamber of the compressor at the outside of the compressor and permits the circulation of a refrigerant that is not involved in air conditioning. Control devices selectively open or close the first external refrigerant circuit and the second external refrigerant circuit, respectively.

Abstract: A fluorescent lamp operating apparatus comprises a power switching element electrically connected to a fluorescent lamp having a pair of electrodes, and means for limiting the current flowing through the power switching element by controlling its conductance so as to prevent the power switching element from being broken by a large current flowing from the power line through the fluorescent lamp when the impedance between the pair electrodes decreases from infinity at the start-up of the fluorescent lamp.

Abstract: A lip type seal is provided with an outer ring part (31) which is tightly fitted to a seal installation part (12) of a housing (1); a seal main body (32) which is fixed to the outer ring part (31) and whose inner circumferential part extending in a bent state to the side of a sealed space (A) is sealably brought into slidable contact with an outer circumferential surface of a rotary shaft (2) inserted in the housing (1); a rear surface support plate (33) which is arranged on the rear side of the seal main body and whose outer circumferential part together with the seal main body (32) is fixed to the outer ring part (31); and a movable support plate (34) which is engaged movably in a radial direction between the seal main body (32) and the rear surface support plate (33) and whose inner diameter is clearance fitted to the outer circumferential surface of the rotary shaft (2).

Abstract: Disclosed is a dimmable fluorescent lamp operating apparatus which comprises a fluorescent lamp, electrical characteristic detecting element for detecting an electrical characteristic of the fluorescent lamp, an inverter circuit for driving the fluorescent lamp, and a feedback controlling circuit for controlling the drive frequency of the inverter circuit such that the electrical characteristic of the fluorescent lamp becomes a predetermined value, wherein the feedback controlling circuit includes temperature detecting element for detecting the temperature of the fluorescent lamp and wherein the frequency characteristic bandwidth of the feedback controlling circuit is varied based on the detected fluorescent lamp temperature.

Abstract: A rotating shaft seal provided with a seal element, arranged between a housing and a rotation shaft, which contacts the rotation shaft, and a seal member made of rubber having a lip end portion, disposed on a fluid storing chamber side to the seal element, which contacts the rotation shaft, comprising a supporting metal for supporting a rear face of the seal member of rubber.

Abstract: A rotating shaft seal provided with a seal element, arranged between a housing and a rotation shaft, which contacts the rotation shaft, and a seal member made of rubber having a lip end portion, disposed on a fluid storing chamber side to the seal element, which contacts the rotation shaft, comprising a supporting metal for supporting a rear face of the seal member of rubber.

Abstract: A shaft seal seals a rotary shaft surface to prevent fluid from moving between a high-pressure area and a low-pressure area. The shaft seal has a lip type ring fitted on the side of the high-pressure area of the rotary shaft. The lip type ring further includes a lip ring, a plurality of first portions and a plurality of second portions. The lip ring is located around the rotary shaft. The lip ring has a ring surface. The first portions are formed on the ring surface to slidably contact the rotary shaft surface. The first portions guide the fluid towards a space between the ring surface and the rotary shaft surface as the rotary shaft is rotated. The second portions are formed on the ring surface. The second portions prevent the fluid in the space from leaking into the low-pressure area.

Abstract: A compressor including a compressing mechanism accommodated in a housing. The mechanism draws refrigerant from an intake chamber into a compression chamber and discharges the refrigerant from the compression chamber to the discharge chamber. A seal device prevents leakage of refrigerant from the internal space to the atmosphere between the drive shaft and the housing. An isolation chamber, which is separately formed in the housing, accommodates the seal device. A pressure reducing passage reduces the pressure of the isolation chamber to reduce the pressure difference applied to the seal device.

Abstract: Disclosed is an intermediate transfer recording medium for use in a method which comprises the steps of: forming an image using the intermediate transfer recording medium on an object; and forming a protective layer on the image. In this case, fastness properties can be fully imparted to the image, the protective layer can be transferred onto the image with high accuracy in a simple manner, blocking and the like attributable to the exposure of a pressure-sensitive adhesive do not take place, and the design and the fastness properties are excellent. An image forming method using the intermediate transfer recording medium is also disclosed.

Abstract: A film pressure sensitive resistor comprises conductive particles such as carbon black, a binder such as polyester resin, and spherical elastic particles having an average particle diameter of 2 &mgr;m to 50 &mgr;m, and further has average surface roughness of 0.1 &mgr;m to 3 &mgr;m, a peak-to-peak concavo-convex period of 10 &mgr;m to 1000 &mgr;m, and an elastic modulus of 800 MPa to 8000 MPa so as to have reliable quality, and excellent environmental resistance, and durability to repeated use (depressing).

Abstract: A seal structure used in a compressor has a first member, a second member and a seal member with a rigidity. The first member has a surface in a first shape. The first shape has at least a first contacting portion. The second member has a surface in a second shape. The second shape has at least a second contacting portion. The first shape and the second shape are complementary with each other. The seal member has a first seal surface and a second seal surface. The seal member is located between the first contacting portion and the second contacting portion. The seal member has a sufficient area to cover at least the first contacting portion and the second contacting portion. The seal member is press-contacted and correspondingly deformed by the first contacting portion and the second contacting portion, thereby creating a seal between the first member and the second member.

Abstract: A rotating shaft seal provided with a seal element, arranged between a housing and a rotation shaft, which contacts the rotation shaft, and a seal member made of rubber having a lip end portion, disposed on a fluid storing chamber side to the seal element, which contacts the rotation shaft, comprising a supporting metal for supporting a rear face of the seal member of rubber.

Abstract: A lip type seal device for a rotary shaft seals about the rotary shaft between a high pressure inner zone and a low pressure outer zone. The lip type seal device includes a first seal, a second seal. The first seal is arranged adjacent to high pressure side, and the second seal is arranged at low pressure side of the first seal. The first seal and the second seal contact an outer peripheral surface of the rotary shaft, and seal about the rotary shaft. The lip front end of the first seal is supported by a bending portion of a support ring. The lip front end of the first seal is also supported by the back-up portion arranged in a space between the lip front end of the first seal and the lip front end of the second seal. Therefore, the bending portion and the back-up portion prevents the lip front end of the first seal from bending or depressed by the high pressure inner zone, while the rotation of the rotary shaft is stopped.

Abstract: A compressor has a housing, which supports a rotary shaft, and a crank chamber. A swash plate is accommodated in the crank chamber. The compressor has an oil chamber located in the housing near a front end portion of the rotary shaft. The oil chamber has an inlet and an outlet. The outlet connects to the suction pressure zone. Either lubricant oil that is separated from refrigerant gas or refrigerant gas in the suction pressure zone flows into the oil chamber from the inlet and flows out from the outlet to the suction pressure zone. A seal mechanism seals the oil chamber. A seal seals between the oil chamber and the crank chamber. This permits an inclination angle of the swash plate to control accurately and smoothly while lubricating the seal mechanism optimally.

Abstract: First pumping threads 125 are formed on an inner circumferential surface of the seal lip portion 124 of an elastomer lip member 12. The first pumping threads 125 generate a pumping action in a leakage direction when a shaft 2 rotates. A first resin lip member 14 is arranged at a rear side of the elastomer lip member 12. Second pumping threads 144 generate a pumping action in a direction opposite to the leakage direction when the shaft 2 rotates. The second pumping threads 144 are formed from an inner circumferential surface of a seal lip portion 143 of the first resin lip member 14 to a rear portion of a bent portion 142 thereof. A second resin lip member 18 is arranged at a rear side of the first resin lip member 18 and has a surface sliding on the shaft 2, which is formed smoothly.

Abstract: An elastomer lip member 12 that its rear is supported with a pressure resisting back-up ring 13, and a synthetic resin lip member 14 arranged on a rear side of the elastomer lip 12 are comprised, and on the inner circumferential surface of the seal lip portion 124 of the elastomer lip member 12, helical grooves 125 generating a pumping action of a fluid introducing direction from an inner space S1 of machine side when a shaft 2 rotates are formed. When a pressure in the inner space of machine S1 is 1 MPa [gage], by making a contact width between the seal lip portion 124 of the elastomer lip member 12 and a shaft 2 at least 0.6 mm, so that a surface pressure maximum portion of the seal lip portion 124 of the elastomer lip member 12 to the shaft 2 is biased or maldistributed toward its rear side whereby a fluid introduction by said helical grooves 125 is performed satisfactorily.

Abstract: A suction chamber and a discharge chamber are defined in a front housing member. A crank chamber is defined between a cylinder block and a rear housing member. A drive shaft passes through the suction chamber and extends from a front end of a housing. The drive shaft is supported by the housing. A shaft sealing assembly for sealing the drive shaft is located in the suction chamber. In the cylinder block and a valve plate, a bleed passage is formed for connecting the crank chamber with the suction chamber. The bleed passage is inclined downward toward the suction chamber. The outlet of the bleed passage is above the shaft sealing assembly. In the suction chamber, a reservoir, which stores lubricating oil supplied through the bleed passage, is surrounds a lower part of the shaft sealing assembly.