Patents by Inventor David J. Pickrell

David J. Pickrell 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: 12150441
    Abstract: A pest catcher adapted to catch and contain a pest. The pest catcher includes a bag to contain the pest. The pest catcher includes a head to receive attachment of the bag to the head and manipulate the bag. The pest catcher includes a handle attached to the head, the handle for manipulating the head and the bag. The pest catcher includes a sticky substance with adhesive properties attached to the bag, the sticky substance facing outward from the head that is adapted to contact the pest during the capture phase of the use of the pest catcher.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: November 26, 2024
    Inventor: David J Pickrell
  • Patent number: 12144471
    Abstract: A toilet that includes a bag having closed side walls, closed bottom and open top. The side walls and bottom form an enclosed interior to collect the solid and liquid waste. The toilet includes a filter attached to an interior surface of the bottom of the bag. The filter allows the liquid waste to flow through the filter, while trapping and removing unwanted particles and contaminants from the liquid waste. The toilet includes perforations in the side walls of the bag adjacent to the filter to allow the liquid processed through the filter to flow from the bag. The toilet includes a compactor bag receptacle having closed side walls, closed bottom and an open top, the side walls and bottom joined at edges to form a tank. The open top of the receptacle receives the bag. The receptacle is shaped to receive the bag and provide support for the bag.
    Type: Grant
    Filed: August 14, 2022
    Date of Patent: November 19, 2024
    Inventor: David J Pickrell
  • Patent number: 10178862
    Abstract: An insect catcher for trapping insects. The insect catcher includes a handle assembly to receive and manipulate a trap for trapping insects. The insect catcher includes a trap to capture and dispose of an insect without an operator of the handle assembly contacting the insect, the trap removably attached to the handle assembly The insect catcher includes an inflatable material as part of the trap which expands and is adapted to have direct contact with the insect to be trapped.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: January 15, 2019
    Inventor: David J. Pickrell Pickrell
  • Patent number: 6752490
    Abstract: A micro fluid dispenser including reservoir, glass tube, hollow glass fiber, a piezoelectric element and a controller. The reservoir is to hold fluid to be dispensed. The glass tube has a first end, a second end and a tube body. The first end of the glass tube is connected to the reservoir to receive the fluid. There is a hollow glass fiber for each glass tube. The hollow glass fiber has a first end, a second end and a fiber body. The first end of the hollow glass fiber is connected to the second end of the glass tube to receive the fluid. The second end of the hollow glass fiber has an open tip to act as a nozzle to dispense the fluid. The piezoelectric element forces the fluid out of each of the open tip. The controller controls activation of the piezoelectric element.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: June 22, 2004
    Inventor: David J. Pickrell
  • Publication number: 20030169315
    Abstract: A micro fluid dispenser including reservoir, glass tube, hollow glass fiber, a piezoelectric element and a controller. The reservoir is to hold fluid to be dispensed. The glass tube has a first end, a second end and a tube body. The first end of the glass tube is connected to the reservoir to receive the fluid. There is a hollow glass fiber for each glass tube. The hollow glass fiber has a first end, a second end and a fiber body. The first end of the hollow glass fiber is connected to the second end of the glass tube to receive the fluid. The second end of the hollow glass fiber has an open tip to act as a nozzle to dispense the fluid. The piezoelectric element forces the fluid out of each of the open tip. The controller controls activation of the piezoelectric element.
    Type: Application
    Filed: March 5, 2003
    Publication date: September 11, 2003
    Inventor: David J Pickrell