Patents by Inventor Cheng-Hui Tseng

Cheng-Hui Tseng 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).

  • Publication number: 20120067190
    Abstract: A beveled-edge maker (1) for chamfering a workpiece (2), the tool comprising a knife assembly (4) adapted for attaching to a drive (5), and at least one guider (8) adapted such that the beveled-edge maker can be mounted to the edge of the workpiece and moved there along.
    Type: Application
    Filed: September 17, 2010
    Publication date: March 22, 2012
    Inventors: Cheng-Hui Tseng, Kun-Meng Lin
  • Patent number: 8061346
    Abstract: A brick cutter includes a base, a swing arm that has a handle portion, wherein the handle portion has one end pivotally connected to the base and an opposite end formed with a head so that the swing arm is capable of swinging relative to the base, and a chisel that has a cutting portion and a rod portion, wherein the rod portion is coupled with the head of the swing arm. Thereby, when a user holds the swing arm with one hand, and hammers the chisel with a hamper held in the other hand, the hammered chisel impacts a brick so as to cut the brick.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: November 22, 2011
    Inventor: Cheng-Hui Tseng
  • Publication number: 20100229846
    Abstract: A brick cutter includes a base, a swing arm that has a handle portion, wherein the handle portion has one end pivotally connected to the base and an opposite end formed with a head so that the swing arm is capable of swinging relative to the base, and a chisel that has a cutting portion and a rod portion, wherein the rod portion is coupled with the head of the swing arm. Thereby, when a user holds the swing arm with one hand, and hammers the chisel with a hamper held in the other hand, the hammered chisel impacts a brick so as to cut the brick.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 16, 2010
    Inventor: Cheng-Hui Tseng
  • Publication number: 20030127950
    Abstract: A mail opening bag for preventing infection of bacteria-by-mail includes a containing body, and a pair of gloves. The containing body has an opening, a transparent upper part, and sealing elements for sealing the opening. The gloves are received in the containing body, and are formed together with the containing body with the wrist portions thereof being connected to the containing body. The gloves have coarse surfaces at the fingertip portions for increasing the friction against a mail to be opened in the containing body. Thus, a user can be sure whether there is suspicious powder when opening mail in the mail opening bag, and protected against possible infection.
    Type: Application
    Filed: January 10, 2002
    Publication date: July 10, 2003
    Inventors: Cheng-Hui Tseng, Jin-Ming Chen