Patents by Inventor Dennis Perkins

Dennis Perkins 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: 20070140051
    Abstract: Systems for mixing thermoset compositions are disclosed. Methods for making thermoset compositions using such systems are also disclosed. The systems include a static mixer in combination with a rotary mixer for mixing base and curing agent components of the thermoset compositions.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 21, 2007
    Inventors: Dennis Perkins, Philip Thomas, Shawn Peck
  • Publication number: 20060011084
    Abstract: The technical disclosures of the E-Z Flow Anfo system will be as follows. This system will allow the delivery of blasting materials to a blast hole without dangerous pressure vessels. This system will not use complicated controls that are normally over ridden. This system will take the shape of the vehicle that carries it affording better visibility for the operator. This system uses vacuum instead of pressure to stage the Anfo, for loading. One person instead of two can operate this system. When cleaning time comes it can be opened without taking the tank apart. This system will require much less horsepower for the same amount of work done using today's method of delivery. This system is very much safer then the Anfo systems being used at this time.
    Type: Application
    Filed: June 14, 2004
    Publication date: January 19, 2006
    Inventor: Dennis Perkins
  • Patent number: 3989228
    Abstract: A static mixing chamber for mixing multi-component compositions has the provision of having the mixing chamber at the outlet of the feed lines. A valve is at the outlet end of the chamber. By having the chamber near the outlet end, a large pressure drop across the chamber is insured. Moreover, the valve at the end of the chamber insures that the large pressure drop will be maintained even during start-up of dispensing. By increasing the pressure drop over the chamber, mixing therethrough has been greatly enhanced. Therefore, a smaller mixture is required for effective mixing. The result in small size makes the static mixer capable of being hand held, in the form of a dispensing gun and the valve actuator is part of the dispensing gun so that the valve can be operated by the same hand that is holding the gun.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: November 2, 1976
    Assignee: Products Research & Chemical Corporation
    Inventors: Lester Morris, Dennis Perkins