Patents by Inventor Wei-Yen Chu

Wei-Yen Chu 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: 6702304
    Abstract: A detachable skate having two sets of engagement members containing two female members and two male members which are correspondingly fitted to a sole at the bottom of the shoe and a mounting plate at the top of the skating device. The female members and the male members can be connected with each other by means of the engagement of a projecting pin into the bottom end of the vertical part of the L-shaped guide slot. Moreover, one male member is provided with a lever for turning this male member. Accordingly, the shoes are detachable from the skating devices so that it's convenient to assemble, stable and safe to use.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: March 9, 2004
    Inventor: Wei-Yen Chu
  • Patent number: 6629698
    Abstract: The present invention relates to a multifunctional shoe which includes a shoe, a locating part, a sliding device and a locking device. The shoe has a sole provided with at least an accommodation. The locating part is fixed by a fixing member inside the accommodation and is a hollow body with the opening thereof is directed downward, thereby forming a mounting opening at the bottom of the sole. The sliding device contains a wheel and a wheel base. The wheel base corresponds to the locating part in form so that it can be received in the locating part. The locking device is located at the side of the locating part. A lock pin is disposed inside the locking device and is controllable from the outside of the sole to be axially moved. The sliding device is fixed inside the locking device while the small part of the wheel projects from the sole for sliding purpose; moreover, the sliding device can be stored or disassembled without projection on the sole for walking purpose.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: October 7, 2003
    Inventor: Wei-Yen Chu
  • Publication number: 20030137115
    Abstract: The present invention relates to a detachable skate having two sets of engagement members containing two female members and two male members which are correspondingly fitted to a sole at the bottom of the shoe and a mounting plate at the top of the skating device. The female members and the male members can be connected with each other by means of the engagement of a projecting pin into the bottom end of the vertical part of the L-shaped guide slot. Moreover, one male member is provided with a lever for turning this male member. Accordingly, the shoes are detachable from the skating devices so that it's convenient to assemble, stable and safe to use.
    Type: Application
    Filed: January 22, 2002
    Publication date: July 24, 2003
    Inventor: Wei-Yen Chu
  • Publication number: 20030062697
    Abstract: The present invention relates to a multifunctional shoe which includes a shoe, a locating part, a sliding device and a locking device. The shoe has a sole provided with at least an accommodation. The locating part is fixed by a fixing member inside the accommodation and is a hollow body with the opening thereof is directed downward, thereby forming a mounting opening at the bottom of the sole. The sliding device contains a wheel and a wheel base. The wheel base corresponds to the locating part in form so that it can be received in the locating part. The locking device is located at the side of the locating part. A lock pin is disposed inside the locking device and is controllable from the outside of the sole to be axially moved. The sliding device is fixed inside the locking device while the small part of the wheel projects from the sole for sliding purpose; moreover, the sliding device can be stored or disassembled without projection on the sole for walking purpose.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 3, 2003
    Inventor: Wei-Yen Chu
  • Patent number: 6450508
    Abstract: A shoe for walking and skating having a shoe, a locating plate, two locating members, two rollers and a brake. The shoe has a sole provided with front and rear holding grooves. The bottom of the locating plate includes front and rear locating frames respectively corresponding to the front and rear holding grooves. The locating members are respectively fixed in the front and the rear locating frames. Each of the locating members has a button on opposing sides for pushing a pivoting element to control the axial movement of a locating pin while a cap is used to fix the button, the pivoting element and the locating pin. In addition, a compression spring is interposed between the cap and the locating pin. Further, a mounting bar with an elongated groove moves up and down and is mounted on either side of the locating members. The rollers are mounted on the elongated grooves of the mounting bars.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: September 17, 2002
    Inventor: Wei-Yen Chu
  • Publication number: 20020121750
    Abstract: The present invention relates to a shoe for walking and skating having a shoe, a locating plate, two locating members, two rollers and a brake. The shoe has a sole provided with a front and a rear holding grooves. The bottom of the locating plate includes a front and a rear locating frames respectively corresponding to the front and rear holding grooves. The locating members are respectively fixed in the front and the rear locating frames. Each of the locating members has a button at either side thereof for pushing a pivoting element to control the axial movement of a locating pin while a cap is used to fix the button, the pivoting element and the locating pin. Besides, a compression spring is interposed between the cap and the locating pin. Moreover, a mounting bar with an elongated groove is movable ups and downs and mounted on either side of the locating members. The rollers are mounted on the elongated grooves of the mounting bars.
    Type: Application
    Filed: March 2, 2001
    Publication date: September 5, 2002
    Inventor: Wei-Yen Chu
  • Publication number: 20020089132
    Abstract: A roller skate includes a sole plate holding two wheel holders and a stop holder in front and rear receiving chambers in an outsole, two wheel assemblies respectively pivoted to the wheel holders and turned between an extended position extended out of the outsole for skating and a received position received inside the outsole for enabling the roller skate to function as a normal shoe for walking, lock control means adapted to lock the wheel assemblies between the extended position and the received position, and a stop alternatively set in a stop holder at the back side of one wheel holder between the working position and the non-working position.
    Type: Application
    Filed: January 9, 2001
    Publication date: July 11, 2002
    Inventor: Wei-Yen Chu
  • Patent number: 6412791
    Abstract: A roller skate includes a sole plate holding two wheel holders and a stop holder in front and rear receiving chambers in an outsole, two wheel assemblies respectively pivoted to the wheel holders and turned between an extended position extended out of the outsole for skating and a received position received inside the outsole for enabling the roller skate to function as a normal shoe for walking, lock control means adapted to lock the wheel assemblies between the extended position and the received position, and a stop alternatively set in a stop holder at the back side of one wheel holder between the working position and the non-working position.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: July 2, 2002
    Inventor: Wei-Yen Chu