Patents by Inventor Christopher A. Krajnik

Christopher A. Krajnik 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: 20170355294
    Abstract: A roofing material bundle transport trailer includes a steering assembly and a pair of transport wheels movably supporting a frame upon a support surface. An inner end of a brake pedal grips one of a plurality of frame rollers rotatably mounted to the frame spaced from each other along a longitudinal axis. The brake pedal can be moved by pivoting a handle relative to the frame for sliding a locking pin extending through the brake pedal. A ramp is pivotably mounted to the frame between an unloading position extending to the support surface and an upright position extending away from the support surface and being removably held by a pair of locking plates pivotably mounted to the frame. Rollers are rotatably mounted to the ramp and aligned with the frame rollers.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventors: Christopher Scott Bisson, Christopher A. Krajnik
  • Patent number: 9622410
    Abstract: A material collection parking system having a hopper connected to a rear discharge chute from a mower deck on a lawn tractor. The system includes a pair of front and a pair of rear parking support legs, at least one of the pairs of legs being independently moveable between a stowed position along a side wall of the hopper and a deployed position supporting the hopper on a ground surface. The material collection system has a low dump configuration and a high dump configuration providing unobstructed sight lines and rear visibility for the operator during rear collection in the stowed position on the lawn tractor.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: April 18, 2017
    Assignee: DEERE & COMPANY
    Inventors: William J Holz, Christopher Krajnik, Patrick Shaver
  • Patent number: 9510510
    Abstract: A material collection system sensor includes a paddle pivotably mounted to a tunnel on a collection container floor. The forward end of the paddle is adjacent a front of the collection container and the rearward end is adjacent a rear of the collection container. A switch mounted to the tunnel under the paddle has an actuator extending above the tunnel that is actuatable by downward pivotal movement of the paddle. A sensitivity adjuster attached to the tunnel under the paddle has a sensitivity adjustment knob outside the collection container which compresses or relaxes a spring extending upwardly against the paddle.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 6, 2016
    Assignee: DEERE & COMPANY
    Inventors: William J Holz, Patrick J Shaver, Christopher A Krajnik
  • Publication number: 20150250099
    Abstract: A material collection parking system having a hopper connected to a rear discharge chute from a mower deck on a lawn tractor. The system includes a pair of front and a pair of rear parking support legs, at least one of the pairs of legs being independently moveable between a stowed position along a side wall of the hopper and a deployed position supporting the hopper on a ground surface. The material collection system has a low dump configuration and a high dump configuration providing unobstructed sight lines and rear visibility for the operator during rear collection in the stowed position on the lawn tractor.
    Type: Application
    Filed: March 6, 2014
    Publication date: September 10, 2015
    Applicant: DEERE & COMPANY
    Inventors: William J. HOLZ, Christopher KRAJNIK, Patrick SHAVER
  • Publication number: 20150007546
    Abstract: A material collection system sensor includes a paddle pivotably mounted to a tunnel on a collection container floor. The forward end of the paddle is adjacent a front of the collection container and the rearward end is adjacent a rear of the collection container. A switch mounted to the tunnel under the paddle has an actuator extending above the tunnel that is actuatable by downward pivotal movement of the paddle. A sensitivity adjuster attached to the tunnel under the paddle has a sensitivity adjustment knob outside the collection container which compresses or relaxes a spring extending upwardly against the paddle.
    Type: Application
    Filed: July 3, 2013
    Publication date: January 8, 2015
    Inventors: William J. Holz, Patrick J. Shaver, Christopher A. Krajnik