Patents by Inventor Howard D. Hadler

Howard D. Hadler 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: 6702208
    Abstract: A hopper spreader apparatus for spreading materials such as salt, sand or seed includes a motor for rotating a spinner for distributing particulate matter delivered to the spinner. The hopper spreader apparatus is adapted for mounting on a skid steer loader unit. In one embodiment, the drive motor is a hydraulic motor which obtains hydraulic power from the hydraulic system of the skid steer loader unit. A flow controller adapts the flow rate provided by the skid steer loader unit to the flow rate for the hydraulic motor. In one embodiment, a check valve limits the operation of the hydraulic motor to one direction. The hopper spreader apparatus includes a quick release mounting adapter for quickly mounting the hopper spreader apparatus to the skid steer loader unit.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: March 9, 2004
    Assignee: Sno-Way International, Inc.
    Inventors: Howard D. Hadler, Lynn W. Schultz, Terry C. Wendorff
  • Patent number: 5987785
    Abstract: A snow-plow system having four major features: lighting system, a quick and easy disconnect/connect system, a reactive controlled pressure mechanism for applying a controlled pressure to the bottom edge of the moldboard of the plow, and a simple electric control to activate or de-activate the reactive controlled pressure mechanism. The present invention may be summarized as a snow-plow system that is mounted to a vehicle having a mounting frame by an easy connect and disconnect system connecting to the A-frame of the snow-plow by use of three mounting pins which hold the snow-plow system in place on the mounting frame of the vehicle and thereby rigidly connect the system to the vehicle. A light bar or lighting system also is rigidly mounted to the A-frame of the snow-plow at the mounting pins so that once the position of the lighting system is determined the relative position of the lighting system with respect to the vehicle does not change.
    Type: Grant
    Filed: November 9, 1998
    Date of Patent: November 23, 1999
    Assignee: Sno-Way International, Inc.
    Inventors: Aleck P. Aguado, Howard D. Hadler, Lynn W. Schultz, James A. Syburg, Thomas E. Weidner, John M. Struck, Gary Wendorff, John H. Leverenz
  • Patent number: 5894688
    Abstract: A power assisted snowplow stand for allowing an operator of a snowplow the ability to position the snowplow to connect and disconnect the snowplow. The snowplow stand generally including a stand structure coupled to a power assist mechanism. The stand structure coupled to the snowplow. The invention also including a method for attaching a vehicle, including a subframe, to and operating power assisted snowplow stand for allowing an operator of a snowplow the ability to position the snowplow to connect and disconnect the snowplow; a stand structure coupled to the snowplow and a power assist mechanism being linked to a control system for controlling the power assisted snowplow stand. The stand structure including an up position and a down position. The method including positioning the vehicle subframe for engagement with the snowplow. Operating the control system to actuate the power assist mechanism to align the snowplow with the vehicle subframe. Engaging and coupling the vehicle subframe to the snowplow.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: April 20, 1999
    Assignee: Sno-way International, Inc.
    Inventors: John M. Struck, Lynn W. Schultz, Howard D. Hadler, Terry Wendorff
  • Patent number: 5832637
    Abstract: A snow-plow system having four major features: lighting system, a quick and easy disconnect/connect system, a reactive controlled pressure mechanism for applying a controlled pressure to the bottom edge of the moldboard of the plow, and a simple electric control to activate or deactivate the reactive controlled pressure mechanism. The present invention may be summarized as a snow-plow system that is mounted to a vehicle having a mounting frame by an easy connect and disconnect system connecting to the A-frame of the snow-plow by use of three mounting pins which hold the snow-plow system in place on the mounting frame of the vehicle and thereby rigidly connect the system to the vehicle. A light bar or lighting system also is rigidly mounted to the A-frame of the snow-plow at the mounting pins so that once the position of the lighting system is determined the relative position of the lighting system with respect to the vehicle does not change.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: November 10, 1998
    Inventors: Aleck P. Aguado, Howard D. Hadler, Lynn W. Schultz, James A. Syburg, Thomas E. Weidner, John M. Struck, Gary Wendorff, John H. Leverenz
  • Patent number: 4415043
    Abstract: A folding toolbar adapted for attachment to a draft vehicle for carrying ground working tools, such as rotary hoe wheels, includes a main frame section and lateral wing sections pivotally connected to the main frame section for upward folding to transport positions. One of the wing sections is foldable through 180.degree. to overlie the main frame section in relatively close proximity thereto, while the other wing section is pivotally connected to the main frame section through a pivot link arrangement and a power cylinder which enable 180.degree. folding to overlie both the main frame section and the opposite first folded wing section. An auxiliary frame member is mounted is spaced relation on the main frame section and provides arrangement for mounting the wing folding cylinders so as to allow substantially the full length of the main frame to be used for mounting tools thereon.
    Type: Grant
    Filed: October 1, 1981
    Date of Patent: November 15, 1983
    Assignee: Chromalloy American Corporation
    Inventors: Howard D. Hadler, James R. Kreftmeyer