Patents Assigned to Chong Woo Co., LTD
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Publication number: 20190240687Abstract: The present invention provides a manually-operated spray pump for discharging a predetermined amount of content by downwardly pressing a manually-operated button having a nozzle, and sealing the content therein by blocking a passage of the nozzle after discharge, wherein the manually-operated button comprises: a button main body coupled to a pump main body so as to communicate with a flow passage of the pump main body, and having an opening, which communicates with the flow passage so as to lead to the outside, formed on the outer surface at one side thereof; an elastic opening-and-closing member mounted on the flow passage of the opening, and opening the opening only when the content is discharged and closing the opening before and after discharge; and a cap member for mounting the elastic opening-and-closing member in position in the opening of the button main body.Type: ApplicationFiled: January 3, 2018Publication date: August 8, 2019Applicant: CHONG WOO CO., LTD.Inventor: Chung Kee LEE
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Publication number: 20190209425Abstract: The present invention provides a container having an application part, which comprises a composition holding part and a composition application part, wherein the application part is equipped with two or more rotating bodies, and as the material of the rotating bodies, a metal is selected that forms a potential difference due to an ionization phenomenon of a liquid at a part being used and/or the composition contained in the holding part.Type: ApplicationFiled: November 11, 2016Publication date: July 11, 2019Applicant: CHONG WOO CO., LTD.Inventor: Chung Kee LEE
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Patent number: 8672191Abstract: Disclosed herein is a hand-operated spray pump configured to discharge a predetermined amount of content upon pressing a button and to suction a residual portion of the content in an end of a nozzle after discharging the content, the hand-operated spray pump including a housing forming the external appearance of the pump, a housing cap configured to seal the internal space of the housing from the outside, the closure configured to mount a container containing content in the housing, the closure being integrally formed with the housing cap, a stem configured to move upward and downward while being connected to the lower end of the button, the shaft configured to move upward and downward along the inside of the housing cap while being coupled to the outside of the stem, a piston configured to move upward and downward along the inner wall of the housing, a compression spring provided between a side protrusion formed at the upper end of the shaft at the side of the shaft and the housing cap, an opening and closinType: GrantFiled: January 14, 2009Date of Patent: March 18, 2014Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: 8602264Abstract: A foam production pump includes a button (110) having an outlet port (112), a housing (120), a closure (130) for mounting the housing to a container, a stem (170) performing an up-and-down motion, a shaft (150) mounted in the lower part of the button, a foam net (158) for producing foam, a housing cap (140) for isolating an air space and a solution space of the housing from each other, an air piston (126), a solution piston (180) mounted at the outside of the stem, an air valve (128) for opening and closing a piston air hole, a first compression spring (160) disposed between the shaft and the solution piston, a second compression spring (165) disposed between the shaft and a support groove of the housing cap, and an opening and closing member (200) for opening and closing a lower end inlet port of the housing when pumping.Type: GrantFiled: October 27, 2008Date of Patent: December 10, 2013Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: 8556126Abstract: A small hand-operated sprayer for spraying small volumes of content includes a main body coupled to a top of a container and a hand-operated pump mounted inside the main body to pump content out of the container through movement of a button mounted on top of the hand-operated pump. The button includes a vertical channel communicating with the hand-operated pump and a horizontal channel extending from the vertical channel, a spray nozzle mounted in the horizontal channel in the button, a trigger having one side at which a portion of the button including the spray nozzle is exposed and an opposite side rotatably coupled to the main body such that the trigger presses the button downward when a handle of the trigger is pulled and returns to an original position due to restoring force when the handle is released, and a locking device enabling or disabling operation of the trigger.Type: GrantFiled: July 20, 2009Date of Patent: October 15, 2013Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: 7938298Abstract: A hand-operated pump that can be mounted in a cosmetic container is provided. A compression spring that provides restoring force during pumping is provided outside a housing such that it is possible to prevent contents from being contaminated and to easily pump highly viscous contents. Also, since the compression spring is stably fixed to a shaft in a state where the button is separated, it is possible to easily assemble the pump, to easily partialize parts (to modularize parts), and to prevent the pump from malfunctioning even if the button drifts away while in use. Also, since an introducing hole in the lower end of the housing is opened and closed by an opening and closing member of a specific shape, it is possible to obtain high sealing force and pumping force during pumping.Type: GrantFiled: April 25, 2005Date of Patent: May 10, 2011Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Publication number: 20100314417Abstract: A foam production pump includes a button (110) having an outlet port (112), a housing (120), a closure (130) for mounting the housing to a container, a stem (170) performing an up-and-down motion, a shaft (150) mounted in the lower part of the button, a foam net (158) for producing foam, a housing cap (140) for isolating an air space and a solution space of the housing from each other, an air piston (126), a solution piston (180) mounted at the outside of the stem, an air valve (128) for opening and closing a piston air hole, a first compression spring (160) disposed between the shaft and the solution piston, a second compression spring (165) disposed between the shaft and a support groove of the housing cap, and an opening and closing member (200) for opening and closing a lower end inlet port of the housing when pumping.Type: ApplicationFiled: October 27, 2008Publication date: December 16, 2010Applicant: CHONG WOO CO., LTD.Inventor: Chung Kee Lee
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Publication number: 20100288856Abstract: Disclosed herein is a hand-operated spray pump configured to discharge a predetermined amount of content upon pressing a button and to suction a residual portion of the content in an end of a nozzle after discharging the content, the hand-operated spray pump including a housing forming the external appearance of the pump, a housing cap configured to seal the internal space of the housing from the outside, the closure configured to mount a container containing content in the housing, the closure being integrally formed with the housing cap, a stem configured to move upward and downward while being connected to the lower end of the button, the shaft configured to move upward and downward along the inside of the housing cap while being coupled to the outside of the stem, a piston configured to move upward and downward along the inner wall of the housing, a compression spring provided between a side protrusion formed at the upper end of the shaft at the side of the shaft and the housing cap, an opening and closinType: ApplicationFiled: January 14, 2009Publication date: November 18, 2010Applicant: CHONG WOO CO., LTD.Inventor: Chung Kee Lee
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Publication number: 20090206108Abstract: Disclosed herein is a small-sized hand-operated spray pump. The spray pump includes a spray nozzle (10) for spraying content, a housing (100) constructed in a narrow and long cylindrical structure to allow the content to be vertically moved therethrough, a cap (20) for controlling the operation of the spray nozzle, a container (130) for containing the content, a closure (80), constructed in a symmetrical wing structure, fixed to one side of housing, a shaft (30) vertically movable along the inner surface of the housing, a piston (92) mounted to the shaft while surrounding the lower end of the shaft, a compression spring (90) for providing a restoring force to the shaft at the time of pumping, a ball (120) for opening and closing an inlet port of the housing at the time of pumping, and a case member (70) constructed in a three-stage frame structure.Type: ApplicationFiled: May 19, 2007Publication date: August 20, 2009Applicant: CHONG WOO CO., LTD.Inventor: Chung Kee Lee
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Publication number: 20080035678Abstract: A hand-operated pump that can be mounted in a cosmetic container is provided. A compression spring that provides restoring force during pumping is provided outside a housing such that it is possible to prevent contents from being contaminated and to easily pump highly viscous contents. Also, since the compression spring is stably fixed to a shaft in a state where the button is separated, it is possible to easily assemble the pump, to easily partialize parts (to modularize parts), and to prevent the pump from malfunctioning even if the button drifts away while in use.Type: ApplicationFiled: April 25, 2005Publication date: February 14, 2008Applicant: CHONG WOO CO., LTD.Inventor: Chung Kee Lee
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Patent number: 7128245Abstract: The present invention relates to a dispensing closure which includes an automatic sealing valve which opens to dispense a fluid product from a squeeze-type container when the container is subjected to an external force, such as squeezing pressure, and which automatically closes when the external force is terminated, and a closure body which securely mounts the automatic sealing valve to the container, wherein the automatic sealing valve and the closure body are designed in a special form not to need a means for retaining the automatic sealing valve to the closure body, so that the possibilities of defect thereof in manufacture and disorder during use can be remarkably reduced, and the manufacturing cost can be reduced by shortening an assembling process.Type: GrantFiled: July 29, 2003Date of Patent: October 31, 2006Assignee: Chong Woo Co., LTDInventor: Chung Kee Lee
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Patent number: 7055721Abstract: The present invention relates to a finger-operated spray pump ejaculating fluid in fixed quantity at one-time pumping, and more particularly a spray pump in which a poppet valve and a sliding seal are made as one unit and the structure of the housing is modified for lower defect rate and improved convenience.Type: GrantFiled: June 23, 2004Date of Patent: June 6, 2006Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: 6913169Abstract: The present invention relates to a low profile, fine mist, finger-operated, precompression-type spray pump, and more particularly to a spray pump provided with a second valve of the novel structure being moveable between a poppet valve and a bottom entrance of housing, to precompress the fluid as a liquid content and then spray, whereby the spray pump can be operated even with a short travel distance of a piston, which enables to make the height of a push button spaced from a closure to be shorter than the existing ones, and the pumping process can be smoothly performed without leakage and can also be started with small empty pumping numbers. In addition, the spray pump according to the present invention is constructed with small numbers of constituent parts, resulting in the significant reduction of manufacturing cost and assembly cost.Type: GrantFiled: October 7, 2003Date of Patent: July 5, 2005Assignee: Chong Woo Co., LTDInventor: Chung Kee Lee
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Patent number: D535188Type: GrantFiled: October 15, 2004Date of Patent: January 16, 2007Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: D538159Type: GrantFiled: April 12, 2006Date of Patent: March 13, 2007Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: D601432Type: GrantFiled: October 22, 2007Date of Patent: October 6, 2009Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: D625997Type: GrantFiled: June 26, 2009Date of Patent: October 26, 2010Assignee: Chong Woo Co., Ltd.Inventor: Chung Kee Lee
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Patent number: D841485Type: GrantFiled: May 24, 2017Date of Patent: February 26, 2019Assignee: CHONG WOO CO., LTD.Inventor: Chung Kee Lee