Patents by Inventor Ching-Chang Wang
Ching-Chang Wang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10932574Abstract: An adjustable armrest includes a post and an armrest body. A sliding member is coupled to the post and has a non-circular contour on a horizontal plane. The armrest body receives a sliding seat. The sliding seat includes a track extending in a length direction. The sliding member is received in the track. The armrest body is movable relative to the post. The track includes a first section and a second section interconnected to the first section. The first and second sections are arranged in the length direction. The first section extends along a rectilinear line. The second section extends along a non-rectilinear line.Type: GrantFiled: June 6, 2019Date of Patent: March 2, 2021Assignee: CHUAN HSING CHEMICAL INDUSTRY CO., LTD.Inventor: Ching-Chang Wang
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Publication number: 20200383486Abstract: An adjustable armrest includes a post and an armrest body. A sliding member is coupled to the post and has a non-circular contour on a horizontal plane. The armrest body receives a sliding seat. The sliding seat includes a track extending in a length direction. The sliding member is received in the track. The armrest body is movable relative to the post. The track includes a first section and a second section interconnected to the first section. The first and second sections are arranged in the length direction. The first section extends along a rectilinear line. The second section extends along a non-rectilinear line.Type: ApplicationFiled: June 6, 2019Publication date: December 10, 2020Inventor: Ching-Chang WANG
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Publication number: 20180344034Abstract: A rotary positioning device for an armrest includes a positioning member, a base, a sliding member, and a detent member. The positioning member includes a plurality of first engaging recesses formed at a side edge thereof. The base is rotatably connected to the positioning member. The sliding member is slidably arranged in base and is selectively switchable between a locked position and an unlocked position. The detent member is movably arranged in the base and is selectively engaged with one of the plurality of first engaging recesses to correspond to the locked position or the unlocked position of the sliding member.Type: ApplicationFiled: June 5, 2017Publication date: December 6, 2018Inventor: Ching-Chang Wang
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Patent number: 10143310Abstract: A rotary positioning device for an armrest includes a positioning member, a base, a sliding member, and a detent member. The positioning member includes a plurality of first engaging recesses formed at a side edge thereof. The base is rotatably connected to the positioning member. The sliding member is slidably arranged in base and is selectively switchable between a locked position and an unlocked position. The detent member is movably arranged in the base and is selectively engaged with one of the plurality of first engaging recesses to correspond to the locked position or the unlocked position of the sliding member.Type: GrantFiled: June 5, 2017Date of Patent: December 4, 2018Assignee: Chuan Hsing Chemical Industry Co., Ltd.Inventor: Ching-Chang Wang
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Patent number: 9700145Abstract: A quick assembly armrest connecting device includes a connecting head and a receiving seat. The connecting head includes a body extending along a first axis. The receiving seat includes a groove extending along a second axis. The armrest connecting device is movable between an assembled position and a separated position in which the connecting head is separated from the receiving seat. When the armrest connecting device moves from the separated position towards the assembled position, the first axis is parallel to the second axis, and the connecting head moves rectilinearly along the second axis towards the receiving seat and inserts the body into the groove. After the connecting head abuts the bottom side of the groove, the connecting head moves rectilinearly in a radial direction of the second axis relative to the receiving seat, moving the armrest connecting device to the assembled position.Type: GrantFiled: May 11, 2016Date of Patent: July 11, 2017Assignee: Chuan Hsing Chemical Industry Co., Ltd.Inventor: Ching-Chang Wang
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Patent number: 8944511Abstract: An armrest assembly includes a base, an arm support, and a connector. The base includes a connecting portion and an installing portion formed at two opposite ends thereof. The installing portion is adapted for installing to a chair. A first surface at one end of the connecting portion is opposite to the installing portion. The arm support is supported on the base and includes a second surface faced to the first surface of the base. A cavity is defined in one of the first and second surfaces. An engaging member is formed on the other of the first and second surfaces and pivotably received in the cavity between an unlocked position and a locked position. A connector is received in the cavity of the arm support and engaged with the engaging member. The arm support is fixed to the base in the locked position.Type: GrantFiled: February 23, 2013Date of Patent: February 3, 2015Assignee: Chuan Hsing Chemical Industry Co., Ltd.Inventor: Ching-Chang Wang
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Publication number: 20140239696Abstract: An armrest assembly includes a base, an arm support, and a connector. The base includes a connecting portion and an installing portion formed at two opposite ends thereof. The installing portion is adapted for installing to a chair. A first surface at one end of the connecting portion is opposite to the installing portion. The arm support is supported on the base and includes a second surface faced to the first surface of the base. A cavity is defined in one of the first and second surfaces. An engaging member is formed on the other of the first and second surfaces and pivotably received in the cavity between an unlocked position and a locked position. A connector is received in the cavity of the arm support and engaged with the engaging member. The arm support is fixed to the base in the locked position.Type: ApplicationFiled: February 23, 2013Publication date: August 28, 2014Applicant: CHUAN HSING CHEMICAL INDUSTRY CO., LTD.Inventor: Ching-Chang Wang
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Publication number: 20140036469Abstract: A protection device includes a frame unit for protecting a mobile apparatus, a support seat mounted on the frame unit, a bluetooth earphone unit mounted on the support seat, and a mobile power unit mounted on the frame unit. The frame unit includes a main frame for mounting the mobile apparatus, and a mounting board mounted on the main frame for mounting the support seat and the mobile power unit. Thus, the mobile apparatus is received in the main frame of the frame unit, the bluetooth earphone unit is mounted on the support seat, and the mobile power unit and the support seat are mounted on the mounting board of the frame unit, so that the mobile apparatus, the mobile power unit and the bluetooth earphone unit are supported and carried by the frame unit.Type: ApplicationFiled: August 3, 2012Publication date: February 6, 2014Inventor: Ching-Chang Wang
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Publication number: 20140034531Abstract: A protection device for an electronic equipment includes a frame unit for protecting the electronic equipment, and a functional unit combined with the frame unit. The frame unit includes a main frame for mounting the electronic equipment. The functional unit includes a functional board mounted in the mounting bracket of the frame unit, a mobile power supply mounted on the functional board, and a charging plug connected with the mobile power supply and insertable into a charging slot of the electronic equipment. Thus, the functional unit is removably mounted on the frame unit so that the functional unit can be removed from the frame unit for replacement of the functional unit.Type: ApplicationFiled: August 3, 2012Publication date: February 6, 2014Inventor: Ching-Chang Wang
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Patent number: 8597000Abstract: The present invention discloses structure improvement of a canned motor pump, and more particular to a canned motor pump which is a plastic pump or a pump with plastic lining to transfer chemical liquids, wherein a support structure of a rotor system is improved to provide a high-rigidity cantilever stationary shaft to satisfy all kinds of requirements.Type: GrantFiled: March 18, 2010Date of Patent: December 3, 2013Assignee: Assoma Inc.Inventors: Huan-Jan Chien, Ching-Chang Wang, Chih-Kuan Shih
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Publication number: 20130270317Abstract: A support and protection device includes a mounting frame, a connecting unit connected with the mounting frame, a support unit connected with the connecting unit, and an attachment unit connected with the support unit. Thus, the support and protection device is attached to a car by the sucker of the attachment unit and is placed on a horizontal plane by the stand of the attachment unit so that the mobile apparatus is used in the car and can also be operated outdoors. In addition, the support and protection device has an angle adjustable function by the spherical adjusting portion of the connecting unit so that the angle of the mobile apparatus can be adjusted.Type: ApplicationFiled: April 17, 2012Publication date: October 17, 2013Inventor: Ching-Chang Wang
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Publication number: 20130228659Abstract: A support and protection device for a mobile apparatus includes a mounting frame for receiving a mobile apparatus, and a support seat detachably connected with the mounting frame. The mounting frame has an entrance and a slideway. The support seat has a slide, a locking piece and a support portion. The support portion supports the support seat and the mounting frame. The locking piece is inserted into the entrance, and the slide is slidable in the slideway. Thus, the support and protection device can protect the mobile apparatus, and can also place the mobile apparatus on a horizontal plane so that the mobile apparatus will not be held by a user.Type: ApplicationFiled: March 1, 2012Publication date: September 5, 2013Inventor: Ching-Chang Wang
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Publication number: 20120280551Abstract: An armrest includes a base and an arm support. The base has a connecting portion and an installing portion. A first surface at an end of the connecting portion is opposite to the installing portion. The arm support is adapted to assemble with the base, and the arm support is pivotable with respect to the base. The arm support includes a second surface abutting the first surface, with a cavity defined in one of the first and second surfaces. An engaging member is pivotally received in the cavity in a single pivoting direction from an unlocked position to a locked position. The arm support is fixed to the base in the locked position.Type: ApplicationFiled: August 16, 2011Publication date: November 8, 2012Inventor: Ching-Chang Wang
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Patent number: 8287046Abstract: An armrest includes a base and an arm support. The base has a connecting portion and an installing portion. A first surface at an end of the connecting portion is opposite to the installing portion. The arm support is adapted to assemble with the base, and the arm support is pivotable with respect to the base. The arm support includes a second surface abutting the first surface, with a cavity defined in one of the first and second surfaces. An engaging member is pivotally received in the cavity in a single pivoting direction from an unlocked position to a locked position. The arm support is fixed to the base in the locked position.Type: GrantFiled: August 16, 2011Date of Patent: October 16, 2012Assignee: Chuan Hsing Chemical Industry Co., Ltd.Inventor: Ching-Chang Wang
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Patent number: 8256612Abstract: A protective frame for portable electronic devices consists of a main frame and a cover. The main frame is provided with a window, a recessed entry formed in a lower side, at least one positioning projection located at the recessed entry and separated by a groove, and a sliding groove cut in the inner walls of other three sides. The cover is laid on the main frame, having an opening, an engaging projection protruding outward around three sides to slide in and engage with the sliding groove, at least one recessed groove cut in the inner wall to correspond to the positioning projections of the main frame, a positioning projection formed at the end of each recessed groove, and an interlocking groove bored next to the outer edge of each positioning projection. Hence, a portable electronic device can be wrapped up by the protective frame to prevent it from damaged.Type: GrantFiled: September 28, 2011Date of Patent: September 4, 2012Inventor: Ching Chang Wang
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Publication number: 20100284804Abstract: The present invention discloses structural improvement of the vertical submerged pump for chemical application. The present invention is focus on reducing the crystal lump generated from high speed etching process. Structural improvement includes a shaft seal device, a diffuser and an upper inner plate. The shaft seal device offer extra flow resistance to balance the differential pressure between the inner space and pump front casing, the function are prevents air bubbles be sucked into the pump, and reduces flow leakage from the front casing into inner space, also absorbs high-pressure back-flush to avoid liquid splash in dry surface of inner space of support column. The diffuser in the support column offer extra inducer function to guides the liquid from the inner space flowing out to the tank, so as to get a stable liquid level in the inner space, thereby largely reducing splashing of the liquid.Type: ApplicationFiled: May 11, 2009Publication date: November 11, 2010Inventors: HUAN-JAN CHIEN, CHING-CHANG WANG, CHIH-KUAN SHIH, SHU-YEN CHIEN
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Publication number: 20100272592Abstract: The present invention discloses structure improvement of a canned motor pump, and more particular to a canned motor pump which is a plastic pump or a pump with plastic lining to transfer chemical liquids, wherein a support structure of a rotor system is improved to provide a high-rigidity cantilever stationary shaft to satisfy all kinds of requirements.Type: ApplicationFiled: March 18, 2010Publication date: October 28, 2010Inventors: Huan-Jan Chien, Ching-Chang Wang, Chih-Kuan Shih
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Patent number: 7435079Abstract: An angular ejector mechanism for ejecting a plastic article with a recess in an inner side includes an angular ejector pin, a sliding pin, an elastic elements and a stopping block. The angular ejector pin includes a molding plate and a supporting plate. A moving hole and a sliding groove are respectively defined in a front face and an opposite rear face of the molding plate to communicate with each other. The sliding pin has a stopping protrusion dividing the sliding pin into a moving portion and a sliding portion. A sliding channel is defined on a front face of the stopping block. The sliding includes a vertical channel and a inclined channel. The moving portion is received in the moving hole of the molding plate, and the sliding portion slides from the sliding channel into the inclined channel until the angular ejector pin separates from the plastic article.Type: GrantFiled: April 18, 2006Date of Patent: October 14, 2008Assignee: Cheng Uei Precision Industry Co., Ltd.Inventors: Ching-Chang Wang, Chih-Yu Chen, Jian-Guang Huang, Yun-Chun He
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Publication number: 20080191104Abstract: An armrest with an adjustable mechanism includes a base with two grooves extending transversely at two opposite ends, a plurality of cavities defined in the middle of the grooves, and a column defined adjacent to each groove. Two retaining members with each one includes a sliding block and a slot extending transversely. The slot allows the column of the base to be inserted therethrough and has a guiding block disposed about the periphery. A housing includes two guiding holes for receiving the guiding block and a rib having a hole defined thereof. The rib is formed between the guiding holes. The locking means includes a body and a detent received in the hole of the rib. The body is mounted on the rib and pushes the detent against the cavity of the base. The body further includes an operating portion that allows a user to operate.Type: ApplicationFiled: April 10, 2007Publication date: August 14, 2008Inventor: Ching-Chang WANG
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Patent number: D580424Type: GrantFiled: March 9, 2006Date of Patent: November 11, 2008Assignee: Cheng Uei Precision Industry Co., Ltd.Inventors: Ching Chang Wang, Chih Yu Chen, Shao Guang Fang, Jian Guang Huang