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公开(公告)号：US5039875A
公开(公告)日：1991-08-13
申请号：US441997
申请日：1989-11-28
Applicant: Shuen-Chin Chang
Inventor： Shuen-Chin Chang
IPC: H03K17/22
CPC classification number: H03K17/223
Abstract: A power-on reset circuit. The reset circuit provides an automatic reset pulse immediately after power-up. The supply voltage is provided to the reset circuit. An RC filter with a variable time constant provides a "hump" waveform which is coupled to a waveform shaper. The waveform shaper converts the hump voltage output from the RC filter into a reset signal. Latching mechanisms are included to prevent refiring of the reset signal.
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公开(公告)号：US11381036B2
公开(公告)日：2022-07-05
申请号：US17049178
申请日：2018-08-30
Applicant: Hewlett-Packard Development Company, L.P. , Chin-Chang Ho , Jen-Hsun Hsieh , Po Cheng Liao , Chen Ee Eunice Goh
Inventor： Chin-Chang Ho , Jen-Hsun Hsieh , Po Cheng Liao , Chen Ee Eunice Goh
IPC: H01R13/639 , H01R13/502 , H01R13/625 , H01R24/38
Abstract: In an example, a power plug may include a connector to engage with a power receptacle of an electronic device, and a removable lock ring disposed around the connector. The lock ring may include a lock tab disposed on the lock ring and extending in a direction away from a longitudinal axis of the power plug. The lock tab may insert into a lock notch of the power receptacle.
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公开(公告)号：USD943278S1
公开(公告)日：2022-02-15
申请号：US29720083
申请日：2020-01-09
Applicant: Ju-Chin Chang
Designer： Ju-Chin Chang
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公开(公告)号：US10759083B1
公开(公告)日：2020-09-01
申请号：US16398868
申请日：2019-04-30
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A table saw includes a base assembly; a table assembly mounted on the base assembly and including a table; a slide mechanism mounted on the table assembly; and a rip fence assembly mounted on one side of the table assembly. The rip fence assembly includes a receptacle in a lower portion of one end; an elongated limit plate including two 90-degree bent arms at two ends respectively, each bent arm including a slot having a first end and a second end; a limit seat facing the receptacle; a spring-biased detent anchored in the receptacle and urging against an inner surface of the limit seat by passing through the second end of the slot; and a pivot disposed on an upper portion of one end of the rip fence assembly and disposed through the first end of the slot.
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公开(公告)号：US10759082B2
公开(公告)日：2020-09-01
申请号：US16214054
申请日：2018-12-08
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A fence assembly of a table saw includes rear and front sliding members slidably disposed on two rails of a table respectively, the rear sliding member having three equally spaced top projections, the front sliding member having three equally spaced forward projections, a transverse member interconnecting the sliding members, and a spring biased workpiece guide bar on the transverse member. The workpiece guide bar includes a front locking element for locking the workpiece guide bar on the front sliding member, a rear locking element for locking the workpiece guide bar on the rear sliding member, the rear positioning element having a recess for receipt of the top projection, and a spring biased lever pivotably secured to the workpiece guide bar. A latch of the lever can be engaged with a protuberance of the front locking element to lock the workpiece guide bar or disengaged from the protuberance to unlock same.
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Patent Agency Ranking
公开(公告)号：US20200016792A1
公开(公告)日：2020-01-16
申请号：US16033520
申请日：2018-07-12
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A ceramic saw includes a sliding cutting table including two intermediate islands, a flat, left portion to the left of the intermediate islands, and a flat, right portion to the right of the intermediate islands; a first longitudinal groove inclined and disposed between the left portion and the intermediate islands, a second longitudinal groove between the intermediate islands, and a third longitudinal groove inclined and disposed between the right portion and the intermediate islands; a plurality of inclined, transverse grooves across the left portion, the right portion, and the intermediate islands; a rectangular groove formed along four edges of the cutting table; a first drain disposed on the first longitudinal groove, a second drain disposed on the second longitudinal groove, and a third drain disposed on the third longitudinal groove; and the first, second and third longitudinal grooves, the transverse grooves, and the rectangular groove communicate with one another.
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公开(公告)号：US20190232520A1
公开(公告)日：2019-08-01
申请号：US16377174
申请日：2019-04-06
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A power miter saw includes two linear guide mechanisms each including a first link including a bifurcated first end including two opposite first through holes; and a bifurcated second end including two opposite second through holes; a spring-loaded second link including a bifurcated first end having two opposite first through hole having a bearing recess, and a bifurcated second end including two opposite second through holes; two washers at outer ends of the first through holes of the second link respectively; a cylindrical lining in the first through holes of the second link; two bearings each at the bearing recess; and a pivot driven through the first through holes of the first link, the washers, the bearings, the cylindrical lining, and the first through holes of the second link to receive a portion of a complimentary pivot to pivotably secure the first and second links together.
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公开(公告)号：US20190164378A1
公开(公告)日：2019-05-30
申请号：US16262922
申请日：2019-01-31
Applicant: Ti Chin Chang , Tong Tsan Chien , Chia Ling Hsieh , Yao Ling Chang
Inventor： Ti Chin Chang , Tong Tsan Chien , Chia Ling Hsieh , Yao Ling Chang
Abstract: A hanging rod control device for a display rack includes a mounting member, a rod, a positioning assembly, a release assembly, a driven device, and a drive device. The mounting member is attached to the display rack. The rod has one end secured to the mounting member with items hung from the rod. The positioning assembly is secured to the mounting member and includes a front plate, a rear fastening member, a shaft interconnecting the front plate and the rear fastening member, and a sliding member having teeth. The release assembly is penetrated by both the shaft and the sliding member and includes arms and positioning plates arranged in alternating fashion. The driven device is disposed in the mounting member and includes a cam and a shaft member operatively connected to the cam.
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公开(公告)号：US20190105797A1
公开(公告)日：2019-04-11
申请号：US16214054
申请日：2018-12-08
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
IPC: B27B27/10
CPC classification number: B27B27/10 , B23D47/025 , B27B27/02
Abstract: A fence assembly of a table saw includes rear and front sliding members slidably disposed on two rails of a table respectively, the rear sliding member having three equally spaced top projections, the front sliding member having three equally spaced forward projections, a transverse member interconnecting the sliding members, and a spring biased workpiece guide bar on the transverse member. The workpiece guide bar includes a front locking element for locking the workpiece guide bar on the front sliding member, a rear locking element for locking the workpiece guide bar on the rear sliding member, the rear positioning element having a recess for receipt of the top projection, and a spring biased lever pivotably secured to the workpiece guide bar. A latch of the lever can be engaged with a protuberance of the front locking element to lock the workpiece guide bar or disengaged from the protuberance to unlock same.
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公开(公告)号：US10183415B2
公开(公告)日：2019-01-22
申请号：US15455136
申请日：2017-03-10
Applicant: Chin-Chin Chang
Inventor： Chin-Chin Chang
Abstract: A table saw includes a table, a saw, a track, a slide strip, and a fence member. The table has an axial direction and a radial direction which are orthogonal to each other. The saw is arranged at a predetermined position of the table. The track is arranged at each side of the table. The slide strip is slidably engaged with the track. An outer surface of the slide strip opposite to the track has a first position part, a second position part, and a third position part. The first position part and the second position part are respectively arranged at two ends of the slide strip and the third position part is arranged at a center of the slide strip. The fence member is bridged on the table and secured to one of the first position part, the second position part, and the third position part.
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