Abstract: Apparatus and method to clearly indicate the direction of an observation plane of an ultrasound imaging probe to a practitioner. This ultrasound imaging probe includes a probe tip at which ultrasound waves are transmitted and received. An indicator of the direction of the observation plane in which an ultrasound image is acquired is applied to the probe tip. The indicator may be a color applied to the surface of a housing. The ultrasound imaging probe is carried by a carrying mechanism.

Abstract: A scroll-type fluid machine such as a scroll compressor or a scroll vacuum pump generates compression heat during compressing operation. A scroll body comprises a stationary scroll and an orbiting scroll that is revolved with respect to the stationary scroll eccentrically. The stationary scroll has a stationary wrap and the orbiting scroll has an orbiting wrap engaged with the stationary wrap to form a compression chamber therebetween. In the scroll-type fluid machine, a cooler is provided to cool high-temperature compressed air discharged from a discharge bore at the center of the stationary scroll.

Abstract: A scroll-type fluid machine such as a scroll compressor or a scroll vacuum pump generates compression heat during compressing operation. A scroll body comprises a stationary scroll and an orbiting scroll that is revolved with respect to the stationary scroll eccentrically. The stationary scroll has a stationary wrap and the orbiting scroll has an orbiting wrap engaged with the stationary wrap to form a compression chamber therebetween. In the scroll-type fluid machine, a cooler is provided to cool high-temperature compressed air discharged from a discharge bore at the center of the stationary scroll.

Abstract: A scroll-type fluid machine such as a scroll compressor or a scroll vacuum pump generates compression heat during compressing operation. A scroll body comprises a stationary scroll and an orbiting scroll that is revolved with respect to the stationary scroll eccentrically. The stationary scroll has a stationary wrap and the orbiting scroll has an orbiting wrap engaged with the stationary wrap to form a compression chamber therebetween. In the scroll-type fluid machine, a cooler is provided to cool high-temperature compressed air discharged from a discharge bore at the center of the stationary scroll.

Abstract: A scroll-type fluid machine such as a scroll compressor or a scroll vacuum pump generates compression heat during compressing operation. A scroll body comprises a stationary scroll and an orbiting scroll that is revolved with respect to the stationary scroll eccentrically. The stationary scroll has a stationary wrap and the orbiting scroll has an orbiting wrap engaged with the stationary wrap to form a compression chamber therebetween. In the scroll-type fluid machine, a cooler is provided to cool high-temperature compressed air discharged from a discharge bore at the center of the stationary scroll.

Abstract: A scroll-type fluid machine such as a scroll compressor or a scroll vacuum pump generates compression heat during compressing operation. A scroll body comprises a stationary scroll and an orbiting scroll that is revolved with respect to the stationary scroll eccentrically. The stationary scroll has a stationary wrap and the orbiting scroll has an orbiting wrap engaged with the stationary wrap to form a compression chamber therebetween. In the scroll-type fluid machine, a cooler is provided to cool high-temperature compressed air discharged from a discharge bore at the center of the stationary scroll.

Abstract: A scroll fluid machine comprises a stationary scroll that has a spiral stationary wrap, and an orbiting scroll that has a spiral orbiting wrap to form a compression chamber between the stationary and orbiting wraps. In the stationary and orbiting wraps, an outer low-pressure pressurizing portion is separated from an inner high-pressure pressurizing portion. A plurality of outlets and inlets are formed in the low-pressure and high-pressure pressurizing portions respectively. At least one of the outlets or at least one of inlets is selectively closed.

Abstract: A scroll-type fluid machine such as a scroll compressor or a scroll vacuum pump generates compression heat during compressing operation. A scroll body comprises a stationary scroll and an orbiting scroll that is revolved with respect to the stationary scroll eccentrically. The stationary scroll has a stationary wrap and the orbiting scroll has an orbiting wrap engaged with the stationary wrap to form a compression chamber therebetween. In the scroll-type fluid machine, a cooler is provided to cool high-temperature compressed air discharged from a discharge bore at the center of the stationary scroll.

Abstract: A scroll fluid machine comprises a stationary scroll that has a spiral stationary wrap, and an orbiting scroll that has a spiral orbiting wrap to form a compression chamber between the stationary and orbiting wraps. In the stationary and orbiting wraps, an outer low-pressure pressurizing portion is separated from an inner high-pressure pressurizing portion. A plurality of outlets and inlets are formed in the low-pressure and high-pressure pressurizing portions respectively. At least one of the outlets or at lease one of inlets is selectively closed.

Abstract: A scroll-type fluid machine such as a scroll compressor or a scroll vacuum pump generates compression heat during compressing operation. A scroll body comprises a stationary scroll and an orbiting scroll that is revolved with respect to the stationary scroll eccentrically. The stationary scroll has a stationary wrap and the orbiting scroll has an orbiting wrap engaged with the stationary wrap to form a compression chamber therebetween. In the scroll-type fluid machine, a cooler is provided to cool high-temperature compressed air discharged from a discharge bore at the center of the stationary scroll.

Abstract: In accordance with the invention, a booster is not provided with a mechanism which transmits a braking reaction, and accordingly, a reaction cannot be transmitted to a brake pedal. On the other hand, a pseudo-reaction imparting means is provided to impart a pseudo-reaction which depends on an amount of depression of the brake pedal. The pseudo-reaction imparting means imparts a pseudo-reaction having a reduced rate of increase to the brake pedal when a travel of the brake pedal is small, and imparts a pseudo-reaction having an increased rate of increase to the brake pedal when a travel of the break pedal is higher. This arrangement avoids the drawback of the prior art that an abnormally high braking reaction is transmitted to a driver as a result of an operational lag of a conventional booster during a quick braking operation.

Abstract: Reaction transmitting means of a brake booster includes a parallel combination of a first and a second reaction transmitting path each transmitting a brake reaction from a reaction disc to a valve plunger. The first reaction transmitting path includes a spring charged to a preset load, and the second reaction transmitting path includes a viscoelastic member as may be formed of rubber. With this construction, a hysteresis is obtained in both a low range of servo ratio during an initial phase of operation of a brake booster and a higher range of servo ratio during a later phase of operation, which occur before and after the spring in the reaction transmitting mechanism is compressed, thus allowing a good brake feeling to be maintained.

Abstract: The present invention is to offer a scroll fluid machine of which the scroll machine proper is cooled sufficiently and effectively and characterized in that, a tubular jacket 26 is provided, said tubular jacket surrounds the outer circumferential surface of a motor 15(motor housing 13) keeping some distance from said surface and has an annular opening 17a on said motor facing to said scroll machine proper side, from which opening cooling gas induced by a cooling fan 16 is taken in, and a passage 19 connecting to the cooling space 17 formed by said outer circumferential surface of the motor and said tubular jacket is provided to guide and introduce said taken-in cooling gas to said scroll machine proper in the direction crossing the longitudinal direction of the rotation shaft of said motor. Thus, the back side of the scroll disk of said scroll machine proper is cooled by the cooling gas flowing in one direction behind the scroll disk.

Abstract: In accordance with the invention, a booster is not provided with a mechanism which transmits a braking reaction, and accordingly, a reaction cannot be transmitted to a brake pedal. On the other hand, a pseudo-reaction imparting means is provided to impart a pseudo-reaction which depends on an amount of depression of the brake pedal. The pseudo-reaction imparting means imparts a pseudo-reaction having a reduced rate of increase to the brake pedal when a travel of the brake pedal is small, and imparts a pseudo-reaction having an increased rate of increase to the brake pedal when a travel of the break pedal is higher. This arrangement avoids the drawback of the prior art that an abnormally high braking reaction is transmitted to a driver as a result of an operational lag of a conventional booster during a quick braking operation.

Abstract: An improvement of a reaction transmitting mechanism for a booster is disclosed. A spring charged to a preset load is disposed between a stepped end face of value body and a plunger plate to urge the latter forwardly. This separates the plunger plate and a value plunger from each other in the inoperative condition of the booster. As an input shaft is driven forward to operate the booster, a reaction disc bulges into abutment against the plunger plate. Subsequently when the spring is compressed, the plunger plate abuts against the value plunger, which defines a jumping point. From this point on, a reaction from the output is transmitted to a driver. Since the output upon the jumping is determined by the preset load to which the spring is charged, a variation in the output upon jumping is minimized for any variation in the hardness of the reaction disc.

Abstract: A brake booster includes a reaction transmitting means which includes a spring that is compressed when a brake reaction from a reaction disc exceeds a preset load. A holder is mounted on a valve body, and a brake reaction which is transmitted from the reaction disc is accepted by the valve body through the holder. A plate plunger is slidably fitted in the holder to allow a brake reaction which is transmitted to the reaction disc to be transmitted to the reaction transmitting means and the valve plunger through the plate plunger. A larger outer diameter can be chosen for the spring in order to achieve a preferred preset load, and a servo ratio can be freely established by the choice of areas of contact between the reaction disc on one hand and the holder and the plate plunger on the other hand.

Abstract: According to the invention, a first spring abutment which extends radially outward is formed on a valve plunger, which forms part of a reaction mechanism for brake booster. A second spring abutment which extends radially outward is formed on a plate plunger. A plurality of coiled springs are disposed in parallel across the pair of spring abutments, and a brake reaction is transmitted to the valve plunger through the plate plunger, the second spring abutment, the plurality of the coiled springs and the first spring abutment. With this construction, the plurality of coiled springs which are disposed in parallel provide a combined spring constant, which is given as a sum of spring constants of individual coiled springs, whereby a combined spring constant of an increased magnitude can be obtained. This allows a servo ratio of the brake booster while the plurality of coiled springs are being compressed to be freely chosen as compared with the prior art.

Abstract: A brake booster is disclosed which functions as an automatic brake as required. Bellows is disposed within a constant pressure chamber of the brake booster, and has a front end which is connected, by a first support member, to a bulge which is formed in the axial portion of a shell. A seal member is connected to the outer periphery of the first support member, and is held in abutment against the wall surface of the shell at a location radially outward of an inlet for the atmosphere. A communication channel is formed by a space between the first support member and an opposing wall surface of the shell and the bulge and the like. A communication is established between the internal space of the bellows and the inlet through the communication channel. This construction allows the overall length of the brake booster to be reduced as compared with the prior art in which a spacer is provided outside the shell.

Abstract: A method of molding a headrest of automotive seat comprises the following steps. First, a bag shaped flexible outer skin member is prepared, has an elongate slit formed therethrough. A part of a stay member is inserted into the outer skin member through the slit and set relative to the outer skin member. A given biasing force is applied to longitudinal ends of the slit so that the slit is stretched in longitudinally opposed directions and thus caused to take a closed position. Then, an injection nozzle of a foamable material feeder is put into the slit by expanding the slit against the biasing force. A foamable material is poured into the outer skin member, and the material feeding is stopped when a given amount of material is fed to the outer skin member. The application of the biasing force to the slit is continued until the material is sufficiently cured.

Abstract: An improvement of a retainer which constitutes a valve mechanism for booster is disclosed. The retainer is used to secure the rear end of a valve element against a tubular terminal end of a valve body by abutment. The retainer comprises a tubular holder supporting the inner peripheral surface of the rear end and urging its outer peripheral surface into tight contact with the inner peripheral surface of the tubular terminal end, a securing portion, disposed rearward of the tubular holder and extending radially outward to be secured to the inner peripheral surface of the tubular terminal end, an anti-withdrawal portion disposed forwardly of the tubular holder and projecting radially outward, and a tapered portion disposed forwardly of the anti-withdrawal portion and extending radially inward and axially so as to be narrowed into a conical configuration. The construction, in particular, the provision of the tapered portion, facilitates fitting the rear end around the outer periphery of the tubular holder.