Patents by Inventor Wen San Chou

Wen San Chou 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).

  • Air compressor
    Patent number: 9803633
    Abstract: An air compressor includes an air storage unit defining a first chamber and a cylinder containing a piston body. The top wall of the cylinder is formed with a tubular projection defining a bore to serve as a second pressure chamber. When the piston head of the piston body is almost in contact with the top wall of the cylinder, part of the compressed air can enter the second pressure chamber, so that the piston body can conduct reciprocation motion more smoothly. Furthermore, the cylinder has an open bottom that is divided into two halves according to a central vertical line of the cylinder, wherein one half of the open bottom is horizontal while the other half of the open bottom is slanted. When the piston body is at BDC, the piston head will be entirely within the cylinder and thus keep gas-tight with the cylinder.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: October 31, 2017
    Inventor: Wen-San Chou
  • Air compressor of weight-reduction type
    Patent number: 9803632
    Abstract: An air compressor of weight-reduction type is disclosed, wherein the bearing and the main housing thereof are formed integrally, so that when the piston body conducts reciprocating motion within the cylinder at high frequencies, the bearing is firmly fixed on the main housing without nonfunctioning or falling off. Furthermore, the main housing and the cylinder thereof are made of plastic and formed integrally. The main housing is formed with a wind collecting hood to facilitate the air flow being introduced through the main housing for rapidly dissipating the heat generated by the bearing and the heat generated from the reciprocating motion of the piston body. Accordingly, the manufacturing cost of the air compressor can be reduced to achieve an economical design, and the weight of the air compressor can be reduced to facilitate the compressor being carried onto a vehicle.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: October 31, 2017
    Inventor: Wen-San Chou
  • Air compressor
    Patent number: 9797394
    Abstract: An improved air compressor includes a cylinder fitted with a piston body and an air storage container. The cylinder and the air storage container are detachably assembled to define an air chamber. A metal seat with a through hole is provided on top of the cylinder. A valve plug is spring-biased against the metal seat. The air storage container is provided with a pressure indicator, which includes a tube defining therein a first bore and a second bore, between which a tapered annular surface is formed. When the air pressure within the air storage container exceeds a predetermined pressure set for the air compressor, the pressure indicator allows excess air to flow into the first bore of the tube and sequentially pass through the tapered annular surface and an elongated opening to be released to the ambient environment, so that objects can be prevented from damages due to excessive inflations.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 24, 2017
    Inventor: Wen-San Chou
  • Air compressor
    Patent number: 9759207
    Abstract: An air compressor includes an air storage container, a cylinder fitted with a piston body and a main frame for mounting a motor. The cylinder and the main frame are integrally formed of plastic. The air storage container is detachably mounted to the cylinder. The main frame is provided with though holes for guiding the air flow, generated by a cooling fan, to flow through the main frame. The main frame is formed with two lateral walls and a bottom wall to form a U-shaped wind collecting shell. The second portion of the main frame is held by multiple radial braces, which facilitates the air flow being introduced through the main frame for rapidly dissipating the heat generated from the reciprocating motion of the piston body, so that the operational security can be increased. The non-metal air compressor may lead to a reduction of the manufacturing cost and the weight.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: September 12, 2017
    Inventor: Wen-San Chou
  • Air compressor
    Patent number: 9759208
    Abstract: An air compressor includes a cylinder being fitted with a piston body and an air storage container formed integrally with the cylinder The air storage container defines therein an air chamber having a diameter greater than or equal to the inner space of the cylinder A pressure relieving mechanism is directly mounted to the air storage container rather than at one outlet provided at the air storage container, wherein one portion of the pressure relieving mechanism is located in the air chamber of the air storage container while the other portion of the pressure relieving mechanism extends out of the air storage container to be in contact with a push button provided on an external enclosure, whereby a user may depress the push button to reduce the air pressure within the air storage container.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: September 12, 2017
    Inventor: Wen-San Chou
  • AIR COMPRESSOR
    Publication number: 20170248132
    Abstract: An improved air compressor includes a cylinder fitted with a piston body, a main frame for mounting a motor, and an air storage container. The cylinder defines at its top wall a plurality of exit holes, which are separated by a plurality of blocking walls and regulated by a resilient sheet having a plurality of branches corresponding to the exit holes. When the compressed air produced in the cylinder pushes the resilient sheet up to open the exit holes, the instantaneous high-pressure air that flows through the exit holes can be restrained by the air blocking walls to prevent the air from interfering with movements of the branches of the resilient sheet, so that the piston body can conduct reciprocating motion more smoothly and thus the performance of the air compressor can be increased.
    Type: Application
    Filed: February 21, 2017
    Publication date: August 31, 2017
    Inventor: Wen-San CHOU
  • AIR COMPRESSOR
    Publication number: 20170248133
    Abstract: An improved air compressor generally includes a cylinder fitted with a piston body, a main frame for mounting a motor, and an air storage container. The cylinder defines at its top wall a plurality of exit holes, which are separated by a plurality of blocking walls and regulated by a control mechanism. When the compressed air is produced in the cylinder causing the control mechanism to open the exit holes, the instantaneous high-pressure air that flows through the exit holes can be restrained by the blocking walls to prevent the air from interfering with operation of the control mechanism, so that the piston body can conduct reciprocating motion more smoothly and thus the performance of the air compressor can be increased.
    Type: Application
    Filed: February 21, 2017
    Publication date: August 31, 2017
    Inventor: Wen-San CHOU
  • Air Compressor
    Publication number: 20170204848
    Abstract: An improved air compressor generally includes a cylinder fitted with a piston body, a main frame for mounting a motor, and an air storage container. The cylinder, which defines a plurality of exit holes, is formed integrally with the main frame. The compressed air produced in the cylinder can quickly enter the air storage container via the exit holes, so that the piston body can conduct reciprocating motion more smoothly and thus the performance of the air compressor can be increased.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 20, 2017
    Inventor: Wen-San CHOU
  • Air Compressor
    Publication number: 20170204844
    Abstract: An improved air compressor includes a cylinder fitted with a piston body, a main frame for mounting a motor, and an air storage container. The cylinder defines a plurality of exit holes regulated by a control mechanism including a resilient sheet having a root and a plurality branches corresponding to the exit holes. The root and branches of the resilient sheet are individually attached to a top wall of the cylinder at separate points, so that each of the branches can be individually moved by the compressed air produced in the cylinder to open or close the corresponding exit hole without affecting movements of the other branches, so that the piston body can conduct reciprocating motion more smoothly, and thus the performance of the air compressor can be increased.
    Type: Application
    Filed: January 13, 2017
    Publication date: July 20, 2017
    Inventor: Wen-San CHOU
  • Air Compressor
    Publication number: 20170204843
    Abstract: An improved air compressor includes a cylinder that is fitted with a piston body and defines at its top wall a plurality of exit holes which are approximately equal in diameter and can be regulated by a resilient sheet having a plurality of branches to enable the cylinder to communicate with an air storage container. The exit holes are normally sealed by the branches of the resilient sheet with the assistance of compression springs when the air compressor is not in operation. The exit holes allow the compressed air produced in the cylinder to quickly enter the air storage container, so that the piston body can conduct reciprocating motion more smoothly and thus the performance of the air compressor can be increased.
    Type: Application
    Filed: January 10, 2017
    Publication date: July 20, 2017
    Inventor: Wen-San CHOU
  • Air Compressor
    Publication number: 20170204845
    Abstract: An improved air compressor includes a cylinder that is fitted with a piston body and defines at its top wall a plurality of exit holes which are approximately equal in diameter and can be regulated by plugs to enable the cylinder to communicate with an air storage container. The exit holes are normally sealed by the plugs with the assistance of compression springs when the air compressor is not in operation. The exit holes allow the compressed air produced in the cylinder to quickly enter the air storage container, so that the piston body can conduct reciprocating motion more smoothly and thus the performance of the air compressor can be increased.
    Type: Application
    Filed: January 10, 2017
    Publication date: July 20, 2017
    Inventor: Wen-San CHOU
  • Sealant dispenser
    Patent number: 9682520
    Abstract: A sealant dispenser is disclosed, which can cooperate with an air compressor for repairing punctured tires. The sealant dispenser generally includes a bottle with a top opening being filled with a chemical sealant, a cap capable of covering the top opening of the bottle, a control element that normally closes an air input connection tube and a sealant output connection tube provided at the cap, and a swing element. In use, the air input connection tube is connected to an air compressor, and the sealant output connection tube is connected to a punctured tire. The serving element is operated to conduct a semicircle swing to allow the compressed air of the air compressor to flow into the bottle to force the chemical sealant to flow into the interior of the punctured tire for repairing the tire.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: June 20, 2017
    Inventor: Wen-San Chou
  • Pressure indicator with pressure-relief function
    Patent number: 9677961
    Abstract: A pressure indicator with a pressure-relief function is disclosed, which can release excessive pressure to the environment. The pressure indicator includes a transparent tube defining therein a first bore and a second bore, and a slider which can be forced by the medium supplied from an external pressure source to move along the first and second bores of the transparent tube. In particular, the first bore has a diameter greater than the second bore, and a tapered annular surface is provided between the first bore and the second bore of the transparent tube. When the pressure of the medium exceeds a predetermined pressure, the slider can be forced by the medium to reach the tapered annular surface, at which excessive medium can be released into the environment via an annular gap between the slider and the tapered annular surface.
    Type: Grant
    Filed: September 11, 2015
    Date of Patent: June 13, 2017
    Inventor: Wen-San Chou
  • Pen-type pressure indicator for air compressor
    Patent number: 9664187
    Abstract: A pen-type pressure indicator, which can be detachably connected to an air compressor for measuring the pressure of compressed air produced in the air compressor, includes a transparent tube and a slider. The slider can be moved along a first bore and a second bore of the transparent tube. The motion of the slider in the transparent tube is similar to the motion of a piston in a cylinder. The transparent tube is provided with a tapered annular surface, between the first bore and the second bore. In addition to measuring the pressure of the compressed air delivered to an object, when the pressure of the compressed air exceeds a predetermined pressure, excessive air can be released into the environment, without requiring the air compressor to be installed with a safety valve, so that the object can be protected from damages due to overpressure.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: May 30, 2017
    Inventor: Wen-San Chou
  • Electric Motor Capable of Dissipating Heat Therein
    Publication number: 20170126099
    Abstract: An electric motor generally includes a housing, a cover, and a cooling fan. The cover defines multiple inlet holes and is formed integrally with an air collecting ring around the inlet holes so as to provide an airflow path for allowing a central portion of the air current generated by the cooling fan to enter the housing. The housing defines a plurality of communication holes and a plurality of outlet holes for allowing the air which has entered the housing to flow thereout. In addition, the present invention provides another path so that an outer portion of the air current can flow along the outer surface of the housing to reduce the temperature of the housing. Through multiple paths for heat dissipation, heat is not easy to accumulate in the housing of the electric motor.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 4, 2017
    Inventor: Wen-San CHOU
  • MOTOR STRUCTURE CAPABLE OF DISSIPATING HEAT THEREIN
    Publication number: 20170126100
    Abstract: A motor structure includes a housing, a cover, an air guiding shell formed therein with an air collecting structure and mounted around the housing, and a cooling fan. The cover defines a plurality of inlet holes. The air collecting structure defines a plurality of through holes aligned with the inlet holes of the cover, so as to provide a path for allowing one portion of the air current generated by the cooling fan to enter the housing for heat dissipation. The housing defines a plurality of inlet holes and a plurality of outlet holes. One portion of the air guiding shell is located above the inlet holes of the housing to form another path for allowing another portion of the air current to enter the housing for heat dissipation.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 4, 2017
    Inventor: Wen-San CHOU
  • MOTOR STRUCTURE CAPABLE OF DISSIPATING HEAT THEREIN
    Publication number: 20170110938
    Abstract: A motor structure includes a housing, a cover, an air collecting structure fixed to the cover, and a cooling fan. The cover defines a plurality of inlet holes. The air collecting structure defines a plurality of through holes aligned with the inlet holes of the cover, so as to provide a path for allowing a central portion of the air current generated by the cooling fan to enter the housing. The housing defines a plurality of communication holes and a plurality of outlet holes for allowing the air which has entered the housing to flow thereout. In addition, the present invention provides another path so that an outer portion of the air current can flow along the outer surface of the housing to reduce the temperature of the housing.
    Type: Application
    Filed: October 14, 2016
    Publication date: April 20, 2017
    Inventor: Wen-San CHOU
  • Air compressor having enlarged compartment for receiving pressurized air
    Patent number: 9624924
    Abstract: An air compressor includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition formed between the cylinder housing and the outlet receptacle and having an air passage formed in the partition, a piston slidably received in the cylinder housing and coupled to a motor for moving relative to the cylinder housing in a reciprocating action in order to generate a pressurized air, and a spring-biased check valve engaged with the partition for selectively blocking the air passage of the partition, the outlet receptacle includes an inner diameter “D2” no less than an inner diameter “D1” of the cylinder housing for allowing the pressurized air to easily flow into the outlet receptacle and for allowing the piston to be moved in a greater moving speed.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: April 18, 2017
    Inventor: Wen San Chou
  • Motor Structure Capable of Dissipating Heat Therein
    Publication number: 20170104390
    Abstract: A motor structure includes a housing, a cover, an air collecting structure fixed to the cover, an air guiding shell mounted around the housing and the air collecting structure, and a cooling fan. The cover defines a plurality of inlet holes. The air collecting structure defines a plurality of through holes aligned with the inlet holes of the cover, so as to provide a path for allowing one portion of the air current generated by the cooling fan to enter the housing. The housing defines a plurality of inlet holes and a plurality of outlet holes. One portion of the air guiding shell is located above the inlet holes of the housing to form another path for allowing another portion of the air current to enter the housing.
    Type: Application
    Filed: October 3, 2016
    Publication date: April 13, 2017
    Inventor: Wen-San CHOU
  • MOTOR WITH HEAT DISSIPATION STRUCTURE
    Publication number: 20170098980
    Abstract: A motor generally includes a housing, a cover, an air collecting structure, and a cooling fan. The cover defines a plurality of inlet holes and is provided with a plurality of wind-catching projections. The air collecting structure, adapted to be fixed to the cover, defines a plurality of through holes aligned with the inlet holes of the cover. The housing defines a plurality of inlet holes. The cover is installed to the housing such that the wind-catching projections are respectively located above the inlet holes of the housing, so as to collect some of the air current. Furthermore, a plurality of recesses are defined between the wind-catching projections, so that some of the air current may flow along the outer surface of the housing via the recesses to further cool down the housing.
    Type: Application
    Filed: October 3, 2016
    Publication date: April 6, 2017
    Inventor: Wen-San CHOU