Patents by Inventor Chan Pak

Chan Pak 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: 6808672
    Abstract: A process for the continuous coagulation and drying of rubber latex includes feeding the latex onto an endless conveyor belt which feeds the latex through a coagulator. A combination of microwave energy and hot air raises the temperature of the latex causing it to coagulate in a coagulation time of less than five minutes. The coagulated rubber from the coagulator is fed into a conveyor belt of a stretch unit which stretches the rubber by increasing its speed of travel. The stretched rubber is then conveyed onto the upper belt of a drying unit. The drying rubber is passed from the upper belt onto an intermediate belt and then on to a lower belt before leaving the drying unit. A combination of microwave energy and hot air in the drying unit is used to dry the rubber to a moisture content of less than 1.5%.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: October 26, 2004
    Assignee: Linatex Rubber Products SDN BHD
    Inventors: Robert Michael Stewart, Chan Pak Kuen, Ralph Nicholas Spearman, Norhisham MD Sanusi, David William Fountain
  • Publication number: 20040147661
    Abstract: Materials of natural rubber incorporating smectite clay particles such as hectorite and bentonite, method of preparing said materials, articles of manufacture made from the materials and method of using the materials are described. The composite materials of the present invention have improved physical properties such as modulus, elasticity, and especially improved coefficient of friction and both dry and wet or slurry abrasion resistance. The materials of the present invention have both increased coefficient of friction and abrasion resistance.
    Type: Application
    Filed: January 27, 2003
    Publication date: July 29, 2004
    Inventors: Anuar Yaakub, Chan Pak Kuen, Norman Keane, Mark Ross
  • Publication number: 20030105181
    Abstract: A process for the continuous coagulation and drying of rubber latex includes feeding the latex onto an endless conveyor belt which feeds the latex through a coagulator. A combination of microwave energy and hot air raises the temperature of the latex causing it to coagulate in a coagulation time of less than five minutes. The coagulated rubber from the coagulator is fed into a conveyor belt of a stretch unit which stretches the rubber by increasing its speed of travel. The stretched rubber is then conveyed onto the upper belt of a drying unit. The drying rubber is passed from the upper belt onto an intermediate belt and then on to a lower belt before leaving the drying unit. A combination of microwave energy and hot air in the drying unit is used to dry the rubber to a moisture content of less than 1.5%.
    Type: Application
    Filed: August 29, 2001
    Publication date: June 5, 2003
    Applicant: Linatex Rubber Procucts SDN BHD, Malaysia
    Inventors: Robert Michael Stewart, Chan Pak Kuen, Ralph Nicholas Spearman, Norhisham MD Sanusi, David William Fountain
  • Patent number: 5838679
    Abstract: The present invention relates to an Asynchronous Transfer Mode (ATM) multi-channel switch with a structure of grouping/trap/routing that, by designating a port as a group, could accept not only the services having higher speed than the speed of input ports, but also the services having super-rate speed by comprising: an input processing unit for executing reading control of externally inputted cells and adjusting synchronization between an externally inputted cell and a cell returned by blocking and feedback; a channel grouping unit for grouping cells outputted from the input processing unit, according to switching control data; a trapping unit for deciding whether cells grouped in the channel grouping means require switching beyond the capacity of the pertinent channel and, if these cells require switching beyond the capacity of the channel, sending them to the input processing unit by feedback; and a routing unit for routing cells outputted from the trapping unit.
    Type: Grant
    Filed: July 6, 1995
    Date of Patent: November 17, 1998
    Assignees: Electronics and Telecommunications Research Institute, Korea Telecommunication Authority
    Inventors: Hyup Jong Kim, Kyeong Soo Kim, Chan Pak