Patents by Inventor Mei-Chih Fang
Mei-Chih Fang 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: 20230023626Abstract: A fan blade device includes a plurality of main fan blades and extension fan blades. Each main fan blade includes a main fan blade body arranged obliquely, a plurality of first protrusions, and at least one engaging groove. Each extension fan blade includes an extension fan blade body arranged obliquely and having a top surface that is contiguously flush with a top surface of the main fan blade body of a respective main fan blade, a plurality of second protrusions respectively abutting against the first protrusions of the respective main fan blade, and at least one engaging piece engaging the at least one engaging groove of the respective main fan blade.Type: ApplicationFiled: February 22, 2022Publication date: January 26, 2023Inventors: Chang-Sung WANG, Mei-Chih FANG
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Patent number: 11549519Abstract: A fan blade device includes a plurality of main fan blades and extension fan blades. Each main fan blade includes a main fan blade body arranged obliquely, a plurality of first protrusions, and at least one engaging groove. Each extension fan blade includes an extension fan blade body arranged obliquely and having a top surface that is contiguously flush with a top surface of the main fan blade body of a respective main fan blade, a plurality of second protrusions respectively abutting against the first protrusions of the respective main fan blade, and at least one engaging piece engaging the at least one engaging groove of the respective main fan blade.Type: GrantFiled: February 22, 2022Date of Patent: January 10, 2023Assignee: YEN SUN TECHNOLOGY CORP.Inventors: Chang-Sung Wang, Mei-Chih Fang
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Patent number: 7780404Abstract: A fan housing with a noise-reducing structure includes a housing having a side wall. An air inlet is defined in the housing and an air outlet defined in the side wall of the housing. A plurality of supporting ribs are disposed in the air inlet and connected between inner and outer peripheries of the air inlet for supporting a motor base. At least one of the supporting ribs is adjacent to the air outlet and extends in a direction coincident to or intersects with a longitudinal line of the air outlet extending through a rotational axis of the motor base.Type: GrantFiled: February 16, 2007Date of Patent: August 24, 2010Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang
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Publication number: 20080152479Abstract: A fan housing with a noise-reducing structure includes a housing having a side wall. An air inlet is defined in the housing and an air outlet defined in the side wall of the housing. A plurality of supporting ribs are disposed in the air inlet and connected between inner and outer peripheries of the air inlet for supporting a motor base. At least one of the supporting ribs is adjacent to the air outlet and extends in a direction coincident to or intersects with a longitudinal line of the air outlet extending through a rotational axis of the motor base.Type: ApplicationFiled: February 16, 2007Publication date: June 26, 2008Inventors: Alex Horng, Mei-Chih Fang
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Patent number: 7351031Abstract: A centrifugal blower includes a housing, an impeller, and a guiding cover. The housing includes a compartment delimited by an annular wall. A radial air inlet is defined in the annular wall and communicated with the compartment. The compartment includes an axial opening. The impeller is rotatably mounted in the compartment and includes a hub and a plurality of blades. The guiding cover is mounted on top edges of the blades and includes an axial air inlet in a central portion thereof. The guiding cover covers the axial opening of the compartment without in contact with the housing. The blades and the guiding cover turn synchronously when the impeller turns. Airflow is driven by the blades and guided by the guiding cover and exits the housing via the radial air outlet.Type: GrantFiled: November 1, 2004Date of Patent: April 1, 2008Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang, Yu-Yuan Lu
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Patent number: 7273400Abstract: A wire-fixing device is provided for a fan including a casing having a wire groove defined in an outer side of the casing. The wire-fixing device includes a retaining groove and a substantially L-shaped resilient retaining member. The retaining groove is defined in an outer corner of the casing and adjacent to the wire groove. The retaining groove includes a first coupling groove and a second coupling groove respectively on two sides of the wire groove. The retaining member has an angle smaller than that of the outer corner of the casing. The retaining member includes two arms each having a distal end. A first coupling section and a second coupling section are respectively formed on the distal ends of the arms and extend inward toward each other. The first coupling section and the second coupling sections are respectively engaged in the first coupling groove and the second coupling groove.Type: GrantFiled: July 12, 2006Date of Patent: September 25, 2007Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang
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Patent number: 7223068Abstract: A housing for an axial flow heat-dissipating fan includes an annular wall including an air inlet in a first end thereof and an air outlet in a second end thereof. A motor of an axial flow heat-dissipating fan is received in the annular wall. A plurality of axially extending slits are defined in a circumference of the annular wall. Each axially extending slit has a first end adjacent to the air outlet and a second end adjacent to the air inlet. A width of the first end of each axially extending slit is smaller than that of the second end of each axially extending slit.Type: GrantFiled: July 7, 2004Date of Patent: May 29, 2007Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Wen-Kuan Chen, Mei-Chih Fang
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Publication number: 20070117465Abstract: A wire-fixing device is provided for a fan including a casing having a wire groove defined in an outer side of the casing. The wire-fixing device includes a retaining groove and a substantially L-shaped resilient retaining member. The retaining groove is defined in an outer corner of the casing and adjacent to the wire groove. The retaining groove includes a first coupling groove and a second coupling groove respectively on two sides of the wire groove. The retaining member has an angle smaller than that of the outer corner of the casing. The retaining member includes two arms each having a distal end. A first coupling section and a second coupling section are respectively formed on the distal ends of the arms and extend inward toward each other. The first coupling section and the second coupling sections are respectively engaged in the first coupling groove and the second coupling groove.Type: ApplicationFiled: July 12, 2006Publication date: May 24, 2007Inventors: Alex Horng, Mei-Chih Fang
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Patent number: 7207779Abstract: An impeller for a radial-flow heat dissipating fan includes a hub and a plurality of blades surrounding the hub. The blades are connected to a circumference of the hub to allow joint rotation of the hub and the blades. The impeller includes an air inlet side and a bottom side. Distribution of the blades at the air inlet side of the impeller is sparser than that at the bottom side of the impeller, thereby increasing an air inlet amount.Type: GrantFiled: August 18, 2004Date of Patent: April 24, 2007Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Yu-Yuan Lu, Mei-Chih Fang
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Patent number: 7125226Abstract: An impeller for a radial-flow heat dissipating fan includes a hub and a plurality of blades surrounding the hub. The blades are connected to a circumference of the hub to allow joint rotation of the hub and the blades. More than one blade include an air inlet side edge and an air outlet side edge. The air inlet side edge of each of the more than one blade has a radial length smaller than that of the air out side edge, thereby increasing an air inlet amount and smoothly changing incoming axial airflow into centrifugal airflow.Type: GrantFiled: July 28, 2004Date of Patent: October 24, 2006Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Yu-Yuan Lu, Mei-Chih Fang
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Patent number: 7080970Abstract: A housing for an axial flow heat-dissipating fan includes an annular wall including an air inlet in a first end thereof and an air outlet in a second end thereof. A motor of an axial flow heat-dissipating fan is received in the annular wall. A plurality of axially extending slits are defined in a circumference of the annular wall. At least two assembling sections are formed on the circumference of the annular and spaced from each other. One of the at least two assembling sections of the housing is engaged with one of at least two assembling sections of a similarly constructed housing.Type: GrantFiled: June 17, 2004Date of Patent: July 25, 2006Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang
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Publication number: 20060093499Abstract: A centrifugal blower includes a housing, an impeller, and a guiding cover. The housing includes a compartment delimited by an annular wall. A radial air inlet is defined in the annular wall and communicated with the compartment. The compartment includes an axial opening. The impeller is rotatably mounted in the compartment and includes a hub and a plurality of blades. The guiding cover is mounted on top edges of the blades and includes an axial air inlet in a central portion thereof. The guiding cover covers the axial opening of the compartment without in contact with the housing. The blades and the guiding cover turn synchronously when the impeller turns. Airflow is driven by the blades and guided by the guiding cover and exits the housing via the radial air outlet.Type: ApplicationFiled: November 1, 2004Publication date: May 4, 2006Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang, Yu-Yuan Lu
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Publication number: 20060039783Abstract: An impeller for a radial-flow heat dissipating fan includes a hub and a plurality of blades surrounding the hub. The blades are connected to a circumference of the hub to allow joint rotation of the hub and the blades. The impeller includes an air inlet side and a bottom side. Distribution of the blades at the air inlet side of the impeller is sparser than that at the bottom side of the impeller, thereby increasing an air inlet amount.Type: ApplicationFiled: August 18, 2004Publication date: February 23, 2006Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Yu-Yuan Lu, Mei-Chih Fang
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Publication number: 20060024160Abstract: A centrifugal blower includes a housing, a cover, and an impeller. The housing includes a peripheral wall delimiting an inner space. The peripheral wall further includes a first sidewall and a second sidewall respectively at two ends thereof. A radial air outlet is defined between the first sidewall and the second sidewall of the peripheral wall. A cover includes an axial air inlet communicated with the inner space of the housing. An impeller is rotatably mounted in the inner space of the housing and aligned with the axial air inlet. At least one auxiliary radial air inlet is defined in the peripheral wall and adjacent to one of the first sidewall and the second sidewall. When the impeller turns, an axial airflow is sucked into the inner space via the axial air inlet and an auxiliary radial airflow is sucked into the inner space via the auxiliary radial air inlet.Type: ApplicationFiled: September 3, 2004Publication date: February 2, 2006Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Yu-Yuan Lu, Mei-Chih Fang
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Publication number: 20050287003Abstract: An impeller for a radial-flow heat dissipating fan includes a hub and a plurality of blades surrounding the hub. The blades are connected to a circumference of the hub to allow joint rotation of the hub and the blades. More than one blade include an air inlet side edge and an air outlet side edge. The air inlet side edge of each of the more than one blade has a radial length smaller than that of the air out side edge, thereby increasing an air inlet amount and smoothly changing incoming axial airflow into centrifugal airflow.Type: ApplicationFiled: July 28, 2004Publication date: December 29, 2005Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Yu-Yuan Lu, Mei-Chih Fang
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Publication number: 20050281665Abstract: A housing for an axial flow heat-dissipating fan includes an annular wall including an air inlet in a first end thereof and an air outlet in a second end thereof. A motor of an axial flow heat-dissipating fan is received in the annular wall. A plurality of axially extending slits are defined in a circumference of the annular wall. At least two assembling sections are formed on the circumference of the annular and spaced from each other. One of the at least two assembling sections of the housing is engaged with one of at least two assembling sections of a similarly constructed housing.Type: ApplicationFiled: June 17, 2004Publication date: December 22, 2005Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang
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Publication number: 20050265828Abstract: A housing for an axial flow heat-dissipating fan includes an annular wall including an air inlet in a first end thereof and an air outlet in a second end thereof. A motor of an axial flow heat-dissipating fan is received in the annular wall. A plurality of axially extending slits are defined in a circumference of the annular wall. Each axially extending slit has a first end adjacent to the air outlet and a second end adjacent to the air inlet. A width of the first end of each axially extending slit is smaller than that of the second end of each axially extending slit.Type: ApplicationFiled: July 7, 2004Publication date: December 1, 2005Applicant: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Wen-Kuan Chen, Mei-Chih Fang
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Patent number: D521140Type: GrantFiled: June 2, 2004Date of Patent: May 16, 2006Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang
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Patent number: D521141Type: GrantFiled: June 2, 2004Date of Patent: May 16, 2006Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang
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Patent number: D523130Type: GrantFiled: June 2, 2004Date of Patent: June 13, 2006Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Mei-Chih Fang