Patents by Inventor Kun-Chen Chen
Kun-Chen Chen 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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Publication number: 20240093416Abstract: A sewing machine includes a main body and a quick release needle plate module. The main body includes a base seat having an inner frame, and an outer case that is mounted to the inner frame and that defines an accommodating compartment. The quick release needle plate module includes a catch member, and a needle plate that covers the accommodating compartment, that is detachably pivoted to a rear section of the inner frame, and that engages the catch member. The quick release needle plate module further includes a press member inserted through the outer case and the inner frame, and operable to push the catch member to disengage the catch member. The needle plate has a plate body that covers the accommodating compartment, and a resilient member mounted between the inner frame and the plate body for driving pivot action of the plate body away from the inner frame.Type: ApplicationFiled: January 20, 2023Publication date: March 21, 2024Applicant: ZENG HSING INDUSTRIAL CO., LTD.Inventors: Kun-Lung HSU, Ming-Ta LEE, Wei-Chen CHEN, Po-Hsien TSENG
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Patent number: 10213914Abstract: A blow molding toolbox has a casing, a cover, and multiple reinforcing elements. The casing has multiple connecting recesses, multiple guiding slots, and multiple positioning recesses. The connecting recesses are deposited on an external surface of the casing at corners of the casing. The cover is pivotally connected to the casing and has a same structure as the casing. Each one of the reinforcing elements is connected to the casing at one of the corners of the casing to cover a corresponding connecting recess of the casing or is connected to the cover at one of the corners of the cover to cover a corresponding connecting recess of the cover, and each reinforcing element has a body, at least one fixing tube, and at least one tapping screw. The reinforcing elements may increase the structural strength of the blow molding toolbox.Type: GrantFiled: November 9, 2016Date of Patent: February 26, 2019Assignee: A-TINA TOOLS CO., LTD.Inventor: Kun-Chen Chen
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Patent number: 9993919Abstract: A toolbox has a casing and a cover. The casing has a top mounting flange, a first strengthening frame, and at least one engaging ring. The top mounting flange is formed on the casing. The first strengthening frame is mounted around the top mounting flange. The at least one engaging ring is mounted on the casing and has multiple ring fasteners mounted through the engaging ring and the top mounting flange via the first strengthening frame. The cover is connected to the casing and has a bottom mounting flange, a second strengthening frame, at least one engaging protrusion. The bottom mounting flange is formed on the cover. The second strengthening frame is mounted around the bottom mounting flange. The at least one engaging protrusion is mounted on the cover and has multiple protrusion fasteners mounted through the engaging protrusion and the bottom mounting flange via the second strengthening frame.Type: GrantFiled: November 10, 2015Date of Patent: June 12, 2018Assignee: A-Tina Tools Co., Ltd.Inventor: Kun-Chen Chen
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Publication number: 20180126544Abstract: A blow molding toolbox has a casing, a cover, and multiple reinforcing elements. The casing has multiple connecting recesses, multiple guiding slots, and multiple positioning recesses. The connecting recesses are deposited on an external surface of the casing at corners of the casing. The cover is pivotally connected to the casing and has a same structure as the casing. Each one of the reinforcing elements is connected to the casing at one of the corners of the casing to cover a corresponding connecting recess of the casing or is connected to the cover at one of the corners of the cover to cover a corresponding connecting recess of the cover, and each reinforcing element has a body, at least one fixing tube, and at least one tapping screw. The reinforcing elements may increase the structural strength of the blow molding toolbox.Type: ApplicationFiled: November 9, 2016Publication date: May 10, 2018Inventor: Kun-Chen CHEN
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Patent number: 9821449Abstract: A file handle has a body, a ferrule, a clamping assembly, and a cap. The body has a first end and a second end opposite to the first end. The ferrule is assembled at the first assembling end of the body. The clamping assembly is movably mounted in the body and has two clamping portions and a threaded hole. The two clamping portions extend through the ferrule. The two clamping portions are subjected to an elastic force and oppositely separated from each other. The threaded hole is adjacent to the second assembling end of the body. The cap is rotatably assembled at the second assembling end of the body and has a screwing stick screwed in the threaded hole. Because the space between the two clamping portions can be adjusted by turning the cap, a user can clamp a tang of a file blade by the file handle.Type: GrantFiled: October 19, 2015Date of Patent: November 21, 2017Assignee: A-TINA TOOLS CO., LTD.Inventor: Kun-Chen Chen
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Publication number: 20170173782Abstract: A modular toolbox has an accessory box and a main box. The accessory box has a baseboard, four supporting arms, two side boards, and an upright board. The four supporting arms are connected to four corners of the baseboard, and the two side boards engage with the baseboard. Each one of the two side boards engages with two adjacent ones of the supporting arms. The upright board engages with the baseboard and engages with the two adjacent supporting arms. The main box is fixed on the accessory box and has a casing. The casing is fixed on top surfaces of the four supporting arms, and the bottom surface of the casing engages with the two side boards and the upright board. A receiving space is formed between the accessory box and the main box for accommodating other toolboxes.Type: ApplicationFiled: December 17, 2015Publication date: June 22, 2017Inventor: KUN-CHEN CHEN
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Publication number: 20170129096Abstract: A toolbox has a casing and a cover. The casing has a top mounting flange, a first strengthening frame, and at least one engaging ring. The top mounting flange is formed on the casing. The first strengthening frame is mounted around the top mounting flange. The at least one engaging ring is mounted on the casing and has multiple ring fasteners mounted through the engaging ring and the top mounting flange via the first strengthening frame. The cover is connected to the casing and has a bottom mounting flange, a second strengthening frame, at least one engaging protrusion. The bottom mounting flange is formed on the cover. The second strengthening frame is mounted around the bottom mounting flange. The at least one engaging protrusion is mounted on the cover and has multiple protrusion fasteners mounted through the engaging protrusion and the bottom mounting flange via the second strengthening frame.Type: ApplicationFiled: November 10, 2015Publication date: May 11, 2017Inventor: Kun-Chen Chen
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Publication number: 20170106526Abstract: A file handle has a body, a ferrule, a clamping assembly, and a cap. The body has a first end and a second end opposite to the first end. The ferrule is assembled at the first assembling end of the body. The clamping assembly is movably mounted in the body and has two clamping portions and a threaded hole. The two clamping portions extend through the ferrule. The two clamping portions are subjected to an elastic force and oppositely separated from each other. The threaded hole is adjacent to the second assembling end of the body. The cap is rotatably assembled at the second assembling end of the body and has a screwing stick screwed in the threaded hole. Because the space between the two clamping portions can be adjusted by turning the cap, a user can clamp a tang of a file blade by the file handle.Type: ApplicationFiled: October 19, 2015Publication date: April 20, 2017Applicant: A-TINA TOOLS CO., LTD.Inventor: Kun-Chen CHEN
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Publication number: 20170072554Abstract: A screwdriver has a handle, a cap, a shaft, and multiple screw bits; wherein the handle has two ends. The cap and the shaft are respectively disposed at the two ends of the handle. The multiple screw bits are received inside the handle. The handle has multiple chambers to contain the screw bits that differ in specifications. The handle has multiple first positioning structures. The cap has multiple second positioning structures complementary to the first positioning structures. Because the first positioning structures and the second positioning structures are engaged with each other, the cap cannot be rotated inadvertently, thereby preventing the screw bits dropping out from the handle inadvertently.Type: ApplicationFiled: September 16, 2015Publication date: March 16, 2017Inventor: KUN-CHEN CHEN
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Publication number: 20160346941Abstract: A knife assembly includes a handle, a blade holder, and a blade. The blade holder is mounted on an end of the handle. The blade holder includes a blade mount, a cap, a blade holding element, and a spring. The blade mount is securely connected to the end of the handle. The cap is detachably attached to the blade mount. The blade holding element is moveably mounted between the blade mount and the cap and has a protrusion. The spring is mounted on the blade mount and has two ends respectively abutting the blade mount and the blade holding element. The blade is mounted between the blade mount and the cap and has a top edge provided with two notches. The protrusion on the blade holding element engages with one of the notches in the blade to securely hold the blade between the blade mount and the cap.Type: ApplicationFiled: May 26, 2015Publication date: December 1, 2016Inventor: Kun-Chen CHEN
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Patent number: 9393685Abstract: A toolbox with a stacking function has a body and at least two connecting elements. The body has four positioning segments, four locating segments, at least two mounting recesses and at least two holding recesses. The at least two mounting recesses are formed in two opposite sidewalls of the body adjacent to a bottom face of the body, and each one of the at least two mounting recesses has two pivot holes. The at least two holding recesses are formed in the opposite sidewalls of the body above the at least two mounting recesses, and each one of the at least two holding recesses has two engaging holes. The at least two connecting elements are detachably and pivotally connected to the body in the at least two mounting recesses, and each one of the at least two connecting elements has a connecting rod, a handle and two engaging protrusions.Type: GrantFiled: November 24, 2014Date of Patent: July 19, 2016Assignee: A-TINA TOOLS CO., LTD.Inventor: Kun-Chen Chen
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Publication number: 20160144500Abstract: A toolbox with a stacking function has a body and at least two connecting elements. The body has four positioning segments, four locating segments, at least two mounting recesses and at least two holding recesses. The at least two mounting recesses are formed in two opposite sidewalls of the body adjacent to a bottom face of the body, and each one of the at least two mounting recesses has two pivot holes. The at least two holding recesses are formed in the opposite sidewalls of the body above the at least two mounting recesses, and each one of the at least two holding recesses has two engaging holes. The at least two connecting elements are detachably and pivotally connected to the body in the at least two mounting recesses, and each one of the at least two connecting elements has a connecting rod, a handle and two engaging protrusions.Type: ApplicationFiled: November 24, 2014Publication date: May 26, 2016Inventor: KUN-CHEN CHEN
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Patent number: 9102041Abstract: A combinational tool holder device has a holder base, a first combination holder and a second combination holder. An inner tube of the holder base has multiple longitudinal insertion holes longitudinally formed in the inner tube and multiple radial insertion troughs radially formed in the inner tube and respectively communicating with the longitudinal insertion holes. The first combination holder and the second combination holder are mounted around the holder base and both have tool insertion holes. The first combination holder clamps the holder base by two first holder claws, and the second combination holder clamps the holder base by two second holder claws. A first interval between the two second holder claws is larger than a second interval between the two first holder claws.Type: GrantFiled: December 6, 2013Date of Patent: August 11, 2015Assignee: A-Tina Tools Co., Ltd.Inventor: Kun-Chen Chen
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Publication number: 20150158154Abstract: A combinational tool holder device has a holder base, a first combination holder and a second combination holder. An inner tube of the holder base has multiple longitudinal insertion holes longitudinally formed in the inner tube and multiple radial insertion troughs radially formed in the inner tube and respectively communicating with the longitudinal insertion holes. The first combination holder and the second combination holder are mounted around the holder base and both have tool insertion holes. The first combination holder clamps the holder base by two first holder claws, and the second combination holder clamps the holder base by two second holder claws. A first interval between the two second holder claws is larger than a second interval between the two first holder claws.Type: ApplicationFiled: December 6, 2013Publication date: June 11, 2015Applicant: A-Tina Tools Co., Ltd.Inventor: Kun-Chen Chen
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Publication number: 20140260828Abstract: A multi-size adjustable sleeve has a sleeve body, a controlling unit, and a fixing unit. The sleeve body has a wheel slit formed through the sleeve body. The controlling unit is mounted in the sleeve space and has a wheel, two screw columns, and two clamping plates. The wheel is set in the sleeve body and protrudes out of the wheel slit. The screw columns are connected with the wheel and have reverse thread directions. The clamping plates are movably mounted on the screw columns. The sleeve can adjust the distance between the clamping plates by rotating the wheel, such that the sleeve can be applied for bolts or nuts of different sizes.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: A-TINA TOOLS CO., LTD.Inventor: Kun-Chen CHEN
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Publication number: 20140202288Abstract: A grip assembly for a tool bit has a grip, a driving device and an axle. The driving device is inserted into the grip and has a holding member, a gear unit and a sleeve. The gear unit has multiple gears and a ring. The gears are rotatably mounted in the holding member. The ring is mounted around and engages the gears. The sleeve is mounted around and engages the ring. The axle is rotatably mounted in the holding member and is engaged by the gears. When the sleeve is rotated, the gears are rotated. Accordingly, the axle is rotated by the gears such that a tool bit loosens a screw in continuous motion.Type: ApplicationFiled: January 24, 2013Publication date: July 24, 2014Applicant: A-TINA TOOLS CO., LTD.Inventor: Kun-Chen CHEN
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Publication number: 20140197609Abstract: A hand tool plate clamp has a connecting shaft, a locking column, an abutting tube, a spring, and a sliding case. The connecting shaft has an insertion slot and a column hole. The insertion slot is mounted on an end of the connecting shaft and the column hole communicates with the insertion slot. The locking column is inserted movably in the column hole. The abutting tube is mounted on and abuts on the connecting shaft. The spring abuts on the abutment ring. The sliding case is mounted on the connecting shaft and the abutting tube. The sliding case abuts on the spring and the locking column Accordingly, the sliding case can be slid movably, and the spring can enable the sliding case to fix the locking column.Type: ApplicationFiled: January 16, 2013Publication date: July 17, 2014Applicant: A-TINA TOOLS CO., LTD.Inventor: Kun-Chen Chen
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Patent number: 8387792Abstract: A sleeve kit has a case, multiple sleeves and a cover. The case has multiple sleeve brackets and multiple fasteners. Each fastener is mounted on a position between two adjacent ones of the sleeve brackets, protrudes from a plane where openings of the sleeve brackets are located and has two barbs and a gap. The cover covers the sleeve brackets and has multiple secure holes respectively mounted around the fasteners. With the secure holes mounted around the fasteners, the cover is difficult to be removed from the case, and the sleeves are protected against burglars.Type: GrantFiled: June 2, 2011Date of Patent: March 5, 2013Inventor: Kun-Chen Chen
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Patent number: D676296Type: GrantFiled: April 6, 2012Date of Patent: February 19, 2013Assignee: A-Tina Tools Co., Ltd.Inventor: Kun-Chen Chen
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Patent number: D685581Type: GrantFiled: June 2, 2011Date of Patent: July 9, 2013Inventor: Kun-Chen Chen