Samsung Electronics Co., Ltd.

Other

Min-Su Cho

Young-chul Kim

Kyoung-Weon Park

Kwang-ho No

Un-ho Baik

Yang-Jo Jung

Jae-Ryoung Park

Chang-Hee Lee

Yun-geun Lee

The present invention relates to a needleless injector. The needleless injector includes a piston shaft with a plurality of holders on an outer surface in a circumferential direction; a cylinder assembly which slidably receives and supports the piston shaft in the forward and backward directions; and a plurality of balls which are received in the cylinder assembly and disposed around the piston shaft, the plurality of balls being movable in a radial direction and inserted into the plurality of holders when the piston shaft is moved in the backward direction. The injector also includes a trigger button slidably coupled to a rear end of the cylinder assembly to form a trigger end interrupting the movement of the balls inserted into the holders in the radial direction, the trigger button releasing the interruption of the trigger end when the piston shaft is slid in the forward direction.

Needleless injector

In an air circulation system of a liquid electrophotographic printer, an engine shell includes a developing unit for developing an electrostatic latent image which is formed on a photoreceptor belt and having an air injector, a drying unit for drying the developed image, and a transferring unit for transferring the developed image to print paper. Air in the engine shell is taken in and exhausted to the outside though a main path. A filter is installed on the main path for filtering air. A return path is branched from the main path and through which the air taken in from the engine shell is supplied to the air injector. An air pump provides a driving force such that air can flow along the main path and the return path. Thus, as air can be exhausted from the engine shell and the exhausted air can be re-supplied to the air injector using a single pump, the structure of the system is simplified.

Air circulation system of liquid electrophotographic printer

An air circulation system for a liquid-type electrophotographic printer. The air circulation system circulates air in the printer and discharges the air to the outside. The printer includes a developer unit for developing a predetermined image onto a photoreceptor belt, a drying unit for drying the developed image, and a transfer unit for printing the dried image on a paper. The air circulation system includes: a belt cartridge having access openings and which is detachably installed in the printer to enclose the photoreceptor belt, except for portions of the photoreceptor belt to which the developer unit, the drying unit and the transfer unit have access through the access openings; sealing members for sealing the belt cartridge at the access openings to the photoreceptor belt for accessing by the developer unit, the drying unit and the transfer unit; a pump for sucking out air in the space enclosed by the belt cartridge and discharging the air to the outside; and a filter for filtering out harmful fumes from the air sucked by the pump prior to being discharged to the outside.

Air circulation system for liquid-type electrophotographic printer

A clothes washing machine has a pulsator and a spurting apparatus for spurting washing water upwardly from the center of the pulsator, so as to disperse laundry gathered thereabove. The spurting apparatus has at least one guide duct and a spurt cap. The guide duct is fixed to an underside of the pulsator so as to rotate together with the pulsator. The washing water is introduced into a radially outer end of the guide duct and guided toward the center of the pulsator. The spurt cap disposed at the center of the pulsator guides the washing water upwardly.

Clothes washing machine having a water-ejecting pulsator

A clothes washing machine has a washing water spurting apparatus for spurting washing water directly upwardly from a center of a pulsator. The washing water is guided by at least guide one duct affixed to the pulsator. The pulsator has a plurality of first ribs formed on an underside of the pulsator and second ribs formed in recesses of the lower surface of the underside. Each of the first ribs is spaced a predetermined distance from the inlet of the guide duct. Each of the second ribs has a height extending from the underside of the pulsator, which is smaller than a height of a top border of the inlet. The first and second ribs enable the washing water to flow smoothly into the inlet of the guide duct when the pulsator rotates. The pulsator and the rotating blades are prevented from being deformed by the presence of the ribs.

Clothes washing machine having a reinforced pulsator

A clothes washing machine has a washing water spurting apparatus for spurting washing water directly upwardly from the center of a pulsator. The washing water spurting apparatus has at least one guide duct and a spurt cap. The spurt cap has a canopy forming a spurt hole. The canopy has a core and an arcuate rim surrounding the core, between which the spurt hole is formed. The core has ribs extending from the core toward a cylindrical inner surface of the arcuate rim. Distal ends of the ribs are spaced a predetermined distance from the cylindrical inner surface. The ribs increase a spurting pressure of the washing water and prevent foreign materials from entering the guide duct downwardly through the spurt hole.

Washing machine

A drum type clothes washing machine includes a housing, an outer tub mounted by springs in the housing, and a washing tub mounted in the outer tub for rotation relative thereto about a horizontal axis. A vibration attenuation apparatus includes a pair of chambers fixed to an underside of the outer tub. The chambers contain a liquid and communicate with one another. A motor drives the washing tub. A pump is also driven by the motor for transferring liquid from one chamber to the other for compensating for a shifting of the axis during rotation of the washing tub.

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Incheon, South Korea

Min-Su Cho