Patents by Inventor Cheng-Pu Yang
Cheng-Pu Yang 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).
-
Patent number: 10744623Abstract: A ratchet wrench includes a handle and a head. A ratchet wheel is received in the through hole and a pawl located in a curved recess in the head is engaged with the ratchet wheel. A slot is defined through the top and bottom of the handle and a portion of the head. A control member is slidably engaged with the slot and controls the pawl. The control member includes a tongue which is engaged with a top groove of the ratchet wheel. When sliding the control member away from the ratchet wheel, the tongue is disengaged from the top groove and the pawl is shifted by the control member, so that the ratchet wheel is able to be picked out from the through hole.Type: GrantFiled: November 5, 2017Date of Patent: August 18, 2020Inventor: Cheng-Pu Yang
-
Publication number: 20190134788Abstract: A ratchet wrench includes a handle and a head. A ratchet wheel is received in the through hole and a pawl located in a curved recess in the head is engaged with the ratchet wheel. A slot is defined through the top and bottom of the handle and a portion of the head. A control member is slidably engaged with the slot and controls the pawl. The control member includes a tongue which is engaged with a top groove of the ratchet wheel. When sliding the control member away from the ratchet wheel, the tongue is disengaged from the top groove and the pawl is shifted by the control member, so that the ratchet wheel is able to be picked out from the through hole.Type: ApplicationFiled: November 5, 2017Publication date: May 9, 2019Inventor: Cheng-Pu Yang
-
Patent number: 10232494Abstract: A ratchet wrench includes a body with a ratchet wheel, a pawl and a switch unit connected thereto. The pawl has a toothed portion on the front side thereof, and a concaved area in the rear side thereof. A first face and two second faces are defined in the concaved area. The first face is located between the two second faces. Each of two sidewalls of the concaved area has a third face. An engaging recess is defined between the second and third faces on the same side relative to the first face. The switch unit controls the pawl to move to engage the toothed portion of the pawl with the ratchet portion of the ratchet wheel so as to control the rotational operations of the ratchet wrench.Type: GrantFiled: March 22, 2017Date of Patent: March 19, 2019Inventor: Cheng-Pu Yang
-
Publication number: 20180311797Abstract: A ratchet wrench includes a ratchet wheel and a pawl received in the head thereof. Two control members are movably connected to the top and bottom of the head and retain the pawl. Each control member includes a restriction hole and the protrusion on the pawl is movably received in the restriction hole. When the pawl is not engaged with the ratchet wheel, the protrusions move in the two respective restriction holes, and the ratchet wheel is still located in the through hole of the head. When the control members move outward, the protrusions and the pawl are moved outward, so that the pawl is separated from the ratchet wheel, and the top face and bottom face of the pawl are separated from the lip of the ratchet wheel and the ring. The ratchet wheel can be removed from the through hole.Type: ApplicationFiled: April 28, 2017Publication date: November 1, 2018Inventor: Cheng-Pu Yang
-
Publication number: 20180272504Abstract: A ratchet wrench includes a body with a ratchet wheel, a pawl and a switch unit connected thereto. The pawl has a toothed portion on the front side thereof, and a concaved area in the rear side thereof. A first face and two second faces are defined in the concaved area. The first face is located between the two second faces. Each of two sidewalls of the concaved area has a third face. An engaging recess is defined between the second and third faces on the same side relative to the first face. The switch unit controls the pawl to move to engage the toothed portion of the pawl with the ratchet portion of the ratchet wheel so as to control the rotational operations of the ratchet wrench.Type: ApplicationFiled: March 22, 2017Publication date: September 27, 2018Inventor: Cheng-Pu YANG
-
Publication number: 20160229040Abstract: A wrench includes a first part having a first pivotal portion, a second part having a second pivotal portion, a connector pivotally connected in the first and second pivotal portions by two pins extending through the first and second pivotal portion and the two ends of the connector so as to pivotally connect the first part and the second part. Each of the first and second parts is pivotable relative to the connector.Type: ApplicationFiled: February 6, 2015Publication date: August 11, 2016Inventors: Cheng-Pu Yang, Yu-Ting Hong, Chiou-Mai Chang
-
Patent number: 9321157Abstract: A wrench includes a first part having a first pivotal portion, a first recess and a first hole, a second part having a second pivotal portion, a second recess and a second hole, and a third part which is received in the first and second recesses. The third part has third, fourth and fifth holes, and a control slot. A control unit is connected to the third part and has four urging members, two first acting members and a second acting member. The urging members are located in the third and fourth holes, and engaged with the first and second holes to pivotably connect the first and third parts, and the second and third parts. The first acting members are located in the fifth hole. The second acting member is located in the control slot and controls the first acting members to contact and the urging members or not.Type: GrantFiled: November 7, 2013Date of Patent: April 26, 2016Inventor: Cheng-Pu Yang
-
Publication number: 20150352697Abstract: A ratchet wrench includes a body having a function head which has a first recess, a second recess and a third recess to respectively accommodate a ratchet wheel, a pawl and a switch unit. The ratchet wheel has a toothed portion and the pawl has a driving portion which is engaged with the toothed portion. The driving portion has multiple teeth and multiple curved teeth. The pawl has a curved recess, a protrusion and a contact face. The switch unit has a switch member, an end piece and a resilient member. The switch member controls the movement of the pawl to engage the curved teeth of the pawl with the teeth of the ratchet wheel to allow the ratchet wrench to optionally output torque in two directions.Type: ApplicationFiled: June 7, 2014Publication date: December 10, 2015Inventor: Cheng-Pu Yang
-
Patent number: 9120212Abstract: A ratchet includes multiple ratchet teeth defined in the outer periphery thereof and a coated layer is coated along the outer periphery of the ratchet. A sand blasting device is used to blast sands to remove a part of the coated layer to define a circular endless opening on the coated layer, and the ratchet teeth protrude the coated layer from the openings.Type: GrantFiled: February 5, 2013Date of Patent: September 1, 2015Inventor: Cheng-Pu Yang
-
Publication number: 20150122087Abstract: A wrench includes a first part having a first pivotal portion, a first recess and a first hole, a second part having a second pivotal portion, a second recess and a second hole, and a third part which is received in the first and second recesses. The third part has third, fourth and fifth holes, and a control slot. A control unit is connected to the third part and has four urging members, two first acting members and a second acting member. The urging members are located in the third and fourth holes, and engaged with the first and second holes to pivotably connect the first and third parts, and the second and third parts. The first acting members are located in the fifth hole. The second acting member is located in the control slot and controls the first acting members to contact and the urging members or not.Type: ApplicationFiled: November 7, 2013Publication date: May 7, 2015Inventor: Cheng-Pu Yang
-
Publication number: 20140216211Abstract: A ratchet includes multiple ratchet teeth defined in the outer periphery thereof and a coated layer is coated along the outer periphery of the ratchet. A sand blasting device is used to blast sands to remove a part of the coated layer to define a circular endless opening on the coated layer, and the ratchet teeth protrude the coated layer from the openings.Type: ApplicationFiled: February 5, 2013Publication date: August 7, 2014Inventor: Cheng-Pu Yang
-
Patent number: 8646363Abstract: A ratchet includes multiple ratchet teeth defined in the outer periphery thereof and a coated layer is coated along the outer periphery of the ratchet. A laser device is used to generate a laser beam to remove a part of the coated layer to defined openings in the coated layer and the ratchet teeth protrude from the openings.Type: GrantFiled: November 21, 2011Date of Patent: February 11, 2014Inventors: Cheng-Pu Yang, Sen-Yuan Hou
-
Patent number: 8596170Abstract: The present invention discloses a single direction ratchet wrench which comprises a main body, a ratchet wheel, a pawl, an elastic element and a clip. The ratchet wheel and the pawl are lodged within the main body. The pawl has retaining cogs, concave surfaces and recess. One end of the elastic element is lodged within the second housing and the other end within the recess. The elastic element pushes the pawl with a particular angle so that the retaining cogs of the pawl are engaged with the ratchet teeth.Type: GrantFiled: June 20, 2011Date of Patent: December 3, 2013Inventor: Cheng-Pu Yang
-
Publication number: 20130125713Abstract: A ratchet includes multiple ratchet teeth defined in the outer periphery thereof and a coated layer is coated along the outer periphery of the ratchet. A laser device is used to generate a laser beam to remove a part of the coated layer to defined openings in the coated layer and the ratchet teeth protrude from the openings.Type: ApplicationFiled: November 21, 2011Publication date: May 23, 2013Inventors: Cheng-Pu Yang, Sen-Yuan Hou
-
Patent number: 8291792Abstract: The present invention relates a ratchet wrench which comprises a main body, a ratchet wheel, a pawl, an elastic element and a clip. The main body has a first housing and a second housing. The ratchet wheel is rotatably lodged within the first housing and has a plurality of ratchet teeth. The pawl is confined within the second housing and a plurality of first retaining cogs and curved second retaining cogs are successively arranged on the front side of the pawl. The first and the second retaining cogs are defined to engage with the ratchet teeth. A recess, a first convex surface and a second convex surface are defined on the pawl. The second convex surface abuts against the wall of the second housing. The elastic element pushes the pawl with a particular angle so that the second convex surface is forced to abut against the wall of the second housing and the cogs of the pawl are engaged with the ratchet teeth.Type: GrantFiled: January 26, 2011Date of Patent: October 23, 2012Inventor: Cheng-Pu Yang
-
Publication number: 20120186402Abstract: The present invention relates a ratchet wrench which comprises a main body, a ratchet wheel, a pawl, an elastic element and a clip. The main body has a first housing and a second housing. The ratchet wheel is rotatably lodged within the first housing and has a plurality of ratchet teeth. The pawl is confined within the second housing and a plurality of first retaining cogs and curved second retaining cogs are successively arranged on the front side of the pawl. The first and the second retaining cogs are defined to engage with the ratchet teeth. A recess, a first convex surface and a second convex surface are defined on the pawl. The second convex surface abuts against the wall of the second housing. The elastic element pushes the pawl with a particular angle so that the second convex surface is forced to abut against the wall of the second housing and the cogs of the pawl are engaged with the ratchet teeth.Type: ApplicationFiled: January 26, 2011Publication date: July 26, 2012Inventor: Cheng-Pu Yang
-
Publication number: 20120000323Abstract: The present invention discloses a single direction ratchet wrench which comprises a main body, a ratchet wheel, a pawl, an elastic element and a clip. The ratchet wheel and the pawl are lodged within the main body. The pawl has retaining cogs, concave surfaces and recess. One end of the elastic element is lodged within the second housing and the other end within the recess. The elastic element pushes the pawl with a particular angle so that the retaining cogs of the pawl are engaged with the ratchet teeth.Type: ApplicationFiled: June 20, 2011Publication date: January 5, 2012Inventor: Cheng-Pu Yang
-
Publication number: 20110049391Abstract: A storage container includes a container body having an inner portion provided with a receiving chamber, a top cover removably mounted on the container body, a circuit board mounted in the top cover, an ultraviolet light mounted on the circuit board and directed toward the receiving chamber of the container body, a control switch mounted on the circuit board and electrically connected with the ultraviolet light, at least one battery mounted on the circuit board and electrically connected with the control switch and the ultraviolet light, and a push button mounted on the top cover and contacting with the control switch. Thus, the ultraviolet light provides a sterilizing function to the articles placed in the receiving chamber of the container body so as to achieve a sanitary purpose.Type: ApplicationFiled: September 1, 2009Publication date: March 3, 2011Inventor: Cheng-Pu Yang
-
Patent number: D814258Type: GrantFiled: March 10, 2016Date of Patent: April 3, 2018Inventor: Cheng-Pu Yang