Patents by Inventor Spencer MITCHELL

Spencer MITCHELL 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: 12440858
    Abstract: A backpack sprayer is disclosed for dispensing different fluids. The backpack sprayer includes a housing with a bottom face and a dispensing assembly. The housing defines a fluid container, a battery compartment for receiving a battery, and a chamber for receiving a control assembly and a pump assembly. The dispensing assembly can dispense fluid from the fluid container. The pump assembly is configured to pump the fluid from the fluid container to the dispensing assembly. The control assembly is configured to control the pump assembly. The battery compartment is positioned above the bottom face with a first height therebetween, and the control assembly is positioned above the bottom face with a second height therebetween. The control assembly includes a rotatable dial, and the rotatable dial has a coupler for coupling a rotatory movement and a cam surface engaged by a follower for controlling on and off of the pump assembly.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: October 14, 2025
    Assignee: TECHTRONIC CORDLESS GP
    Inventors: Qi Li, Waifa He, Zhengjun Wang, Hunter Brown, Spencer Mitchell
  • Publication number: 20250081886
    Abstract: A lap bar controller for a lawnmower, the lap bar controller including a framework configured to be coupled to a frame of the lawnmower, the framework defining an opening; a shaft extending through the opening and configured to rotate about a rotational axis defined by a longitudinal axis of the shaft; a control arm coupled to the shaft, the control arm comprising a grip configured to be accessible to a user operating the lawnmower, wherein a user input to the grip causes the control arm to bias the shaft to rotate; and a rotary damper coupled to the shaft, wherein rotation of the shaft causes displacement of the rotary damper, and wherein the rotary damper dampens rotation of the shaft relative to the framework.
    Type: Application
    Filed: September 4, 2024
    Publication date: March 13, 2025
    Inventors: Adam D’Angelo, Spencer Mitchell
  • Publication number: 20240001384
    Abstract: A backpack sprayer is disclosed for dispensing different fluids. The backpack sprayer includes a housing with a bottom face and a dispensing assembly. The housing defines a fluid container, a battery compartment for receiving a battery, and a chamber for receiving a control assembly and a pump assembly. The dispensing assembly can dispense fluid from the fluid container. The pump assembly is configured to pump the fluid from the fluid container to the dispensing assembly. The control assembly is configured to control the pump assembly. The battery compartment is positioned above the bottom face with a first height therebetween, and the control assembly is positioned above the bottom face with a second height therebetween. The control assembly includes a rotatable dial, and the rotatable dial has a coupler for coupling a rotatory movement and a cam surface engaged by a follower for controlling on and off of the pump assembly.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 4, 2024
    Inventors: Qi LI, Waifa HE, Zhengjun WANG, Hunter BROWN, Spencer MITCHELL