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).

  • Inflator having an enhanced cooling effect on a motor thereof
    Patent number: 10077765
    Abstract: An inflator includes a box and a compressor unit installed in the box. The box is composed of a cover and a base, which are respectively provided with upper and lower airflow-guiding members, which can quickly guide the air current generated by a cooling fan of the compressor unit to enter the motor's housing via two openings of the housing and to flow out of the motor's housing via downstream through holes of the housing, thus dissipating the heat generated by a rotor assembly in the motor, so that heat is not easy to accumulate in the motor, so that maximum power output of the motor can be achieved, and the performance and service life of the motor can be increased.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: September 18, 2018
    Inventor: Wen-San Chou
  • Air compressor
    Patent number: 9964103
    Abstract: An air compressor having a pen-type pressure gauge is disclosed and provided for measuring the pressure of the compressed air produced by air compressor as well as releasing air into an ambient environment when the pressure is greater than a predetermined maximum safety value, so as to achieve the operational safety without installing a separate safety valve and prevent an inflated object from damages.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 8, 2018
    Inventor: Wen-San Chou
  • Air compressor
    Patent number: 9964104
    Abstract: An improved air compressor includes a cylinder with a piston body and an air storage container. The air storage container can be detachably mounted to the cylinder to define a primary air chamber, and an auxiliary air chamber which can reduce the motion resistance of the piston body, so that the piston body can conduct reciprocating motion in the cylinder more smoothly. Furthermore, the cylinder has an open bottom that is divided into two halves according to a central vertical line (Y) 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 reaches the bottom dead center, the head of the piston body will be entirely within the cylinder and thus keep air-tight with the cylinder. Therefore, the performance of compressing air and the operational safety can be increased.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: May 8, 2018
    Inventor: Wen-San Chou
  • Inflator
    Patent number: 9957966
    Abstract: An inflator includes a box and a compressor unit installed in the box. The box is composed of a cover and a base, which are respectively provided with upper and lower airflow-guiding members, which can quickly guide the air current generated by a cooling fan of the compressor unit to enter the motor's housing via two openings of the housing and to flow out of the motor's housing via downstream through holes of the housing, thus dissipating the heat generated by a rotor assembly in the motor, so that heat is not easy to accumulate in the motor, so that maximum power output of the motor can be achieved, and the performance and service life of the motor can be increased.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: May 1, 2018
    Inventor: Wen-San Chou
  • Air compressor with improved rotating device
    Patent number: 9945369
    Abstract: An air compressor includes a rotating device pivotally connected to a piston body. The rotating device includes a gear body and a counterweight. The gear body is formed together with a counterweight, wherein the counterweight is provided with a crankshaft corresponding to the center of the gear body and a crankpin placed at a distance from the crankshaft. The counterweight is horizontally divided into two integrally formed halves, including a left half and a right half, with a common line connected between the center of the crankshaft and the center of the crankpin, wherein the left half has a weight different from the right half, so that the piston body gathers more rotational momentum from the counterweight at BDC to facilitate upstrokes, so that the piston body can conduct reciprocating motion more smoothly, and thus the service life of the air compressor can be increased.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: April 17, 2018
    Inventor: Wen-San Chou
  • Air compressor
    Patent number: 9915253
    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 an elongated pressure indicator, which includes a transparent 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 elongated pressure indicator allows excess air to flow into the first bore of the transparent tube and pass through the tapered annular surface to be released to the ambient environment, so that objects can be prevented from damages due to excessive inflations.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 13, 2018
    Inventor: Wen-San Chou
  • Portable electric inflator
    Patent number: 9879665
    Abstract: A portable electric inflator includes an electric air compressor, a pressure gauge, and a box for accommodating the electric air compressor and the pressure gauge. The box defines therein a generally L-shaped space for accommodating a cooling fan, a motor, a main frame with a transmission mechanism, a cylinder with a piston body, and an air storage tank of the electric air compressor. The motor defines two openings at its surrounding wall and multiple downstream through holes at its bottom wall. The main frame is provided with a peripheral wall and beveled radial braces and defines two through holes to facilitate the airflow passing through the main frame. The cooling fan can draw outside air to enter the box and smoothly flow along the generally L-shaped space to quickly dissipate the heat generated by the electric air compressor, whereby the performance and safety of the inflator can be increased.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: January 30, 2018
    Inventor: Wen-San Chou
  • Air compressor
    Patent number: 9868420
    Abstract: An air compressor includes a box and a compressor unit installed in the box. The box is provided with a connection socket. The compressor unit has an air outlet exposed to the connection socket of the box. An external device, such as a hose or a sealant bottle, can be firmly and detachably assembled onto the connection socket of the box, and can be connected between the outlet of the compressor unit and the air nozzle of a tire, so that the tire can be inflated or repaired safely and effectively.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: January 16, 2018
    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: 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
    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: 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: 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: 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