Patents by Inventor Chao-Lung Su

Chao-Lung Su 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: 8382020
    Abstract: A cutting device for a crosscut shredder is mounted in a housing, is driven by a motor through a transmission gear set and has two driving shafts, and two bracing leaves, multiple shredding blades and multiple partitions mounted on the driving shafts. The partitions are disposed between the shredding blades. The bracing leaves hold the driving shafts at middles of the driving shafts to structurally enhance the driving shafts so the driving shafts are not deformed easily. Therefore, the papers are shredded thoroughly, and the transmission gear set and the motor are able to operate appropriately and keep in good conditions. Moreover, the driving shafts have saved manufacturing costs and effective shredding capabilities.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: February 26, 2013
    Inventor: Chao-Lung Su
  • Publication number: 20120097777
    Abstract: A cutting device for a strip-cut shredder is mounted in a housing, is driven by a motor through a transmission gear set and has two driving shafts, two pairs of guiding brackets mounted between the driving shafts, and a bracing leaf, multiple pairs of stripping blades and multiple partitions mounted on the driving shafts. The partitions are disposed between the stripping blades. The bracing leaf holds the driving shafts to structurally enhance the driving shafts so the driving shafts are not deformed easily. Therefore, the papers are stripped thoroughly, and the transmission gear set and the motor are able to operate appropriately and keep in good conditions. Moreover, the driving shafts have saved manufacturing costs and effective shredding capabilities.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Inventor: Chao-Lung Su
  • Publication number: 20120097778
    Abstract: A cutting device for a crosscut shredder is mounted in a housing, is driven by a motor through a transmission gear set and has two driving shafts, and two bracing leaves, multiple shredding blades and multiple partitions mounted on the driving shafts. The partitions are disposed between the shredding blades. The bracing leaves hold the driving shafts at middles of the driving shafts to structurally enhance the driving shafts so the driving shafts are not deformed easily. Therefore, the papers are shredded thoroughly, and the transmission gear set and the motor are able to operate appropriately and keep in good conditions. Moreover, the driving shafts have saved manufacturing costs and effective shredding capabilities.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 26, 2012
    Inventor: Chao-Lung Su
  • Patent number: 8091814
    Abstract: A single-motor shredder has a housing, and multiple cutting rollers, a paper feeding mechanism and a motor mounted in the housing. A first gear set connects the cutting rollers with the motor and a second gear set connects the cutting rollers with the paper feeding mechanism. Only one motor is needed to drive the cutting rollers and the paper feeding mechanism. Therefore, the shredder is light and a manufacturing costs of the shredder are lowered. Moreover, the paper feeding mechanism separates a stack of paper into small piles to sequentially feed the stack of paper in small piles. Thus, the stack of paper does not jam the cutting rollersso improving lifetime of the shredder.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: January 10, 2012
    Inventor: Chao-Lung Su
  • Publication number: 20110204168
    Abstract: A single-motor shredder has a housing, and multiple cutting rollers, a paper feeding mechanism and a motor mounted in the housing. A first gear set connects the cutting rollers with the motor and a second gear set connects the cutting rollers with the paper feeding mechanism. Only one motor is needed to drive the cutting rollers and the paper feeding mechanism. Therefore, the shredder is light and a manufacturing costs of the shredder are lowered. Moreover, the paper feeding mechanism separates a stack of paper into small piles to sequentially feed the stack of paper in small piles. Thus, the stack of paper does not jam the cutting rollersso improving lifetime of the shredder.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 25, 2011
    Inventor: Chao-Lung SU
  • Patent number: 7823873
    Abstract: A paper feeding device is mounted in a shredder and has a casing, and a pushing assembly and a feeding assembly mounted in the casing. When a stack of paper is put into the paper feeding device, the pushing assembly pushes the paper forward and the feeding assembly automatically feeds some of the paper into the shredder to shred the paper into small pieces until shredding of the stack of paper is complete. Furthermore, according to a capability of a cutting mechanism of the shredder, the feeding assembly is adjustable to feed different quantities of paper at a time. Therefore, the paper feeding device for the shredder is convenient, time saving and efficient.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: November 2, 2010
    Inventor: Chao-Lung Su