Patents by Inventor David J. Nebel

David J. Nebel 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: 8025248
    Abstract: The invention is a detachable “blade foil” system for comminuting machines which employ a rotating turbine. The turbine blades are each endowed with a detachable leading edge which is shaped in an air foil configuration. These “blade foils” are penetrated by a vent chamber having an inlet port and an outlet port. The vent chambers aid in drying input material that is processed by a comminuting machine and also aid in reducing sound from the turbine. The configuration of the inventive blade foils also vary to aid in material drying. The configuration of the blade foils also define the level of particle size attributed to the processed output material. Hence by selecting particular blade foil configurations the operator can achieve different levels of material drying and differing output particle sizings.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: September 27, 2011
    Inventors: David J. Nebel, Ernest R. Schmidt
  • Patent number: 5230384
    Abstract: The horseshoe assembly of the present invention comprises a U-shaped pad member having one or more glide clips attached thereto around its outer circumference. Each of the glide clips has a glide surface protruding a short distance below the bottom surface of the pad member. The coefficient of friction of the glide members is less than that of the pad member. At least one elongated stud is fitted within a stud receiving hole in the bottom surface of the pad member and includes a lower stud end protruding below the bottom surface of the pad member.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: July 27, 1993
    Inventors: David J. Nebel, Keith L. Hansen
  • Patent number: 5168934
    Abstract: The horseshoe assembly of the present invention comprises a U-shaped pad member having one or more glide clips attached thereto around its outer circumference. Each of the glide clips has a glide surface protruding a short distance below the bottom surface of the pad member. The coefficient of friction of the glide members is less than that of the pad member. A modified form of the invention utilizes a metal plate between the pad member and the horse's hoof. The metal plate has a small roller at its forward edge. A further modification comprises casting a plurality of shoes in various shapes and sizes capable of fitting directly to horses' hooves without further reshaping of the shoes.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: December 8, 1992
    Inventors: David J. Nebel, Keith L. Hansen
  • Patent number: 4892261
    Abstract: A comminution device is provided which has a rotatable turbine mounted in a housing for causing an air flow through an expansion chamber. Material to be comminuted is carried in an air stream through the expansion chamber where it is rapidly decompressed causing it to explode. The turbine is made of a plurality of air foil blades mounted on a backing plate and is dimensioned in close tolerance to its housing. Exchangeable expansion chambers are provided to vary the rate of pressure reduction which effects the size of the communited material. The shaft of the turbine is mounted in oil cooled bearings to increase the life and efficiency of the bearings and turbine blades.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: January 9, 1990
    Assignee: The T.D.J. Co., Inc.
    Inventors: Thomas E. Rolle, David J. Nebel, John L. Shulan, William P. Liljestrom
  • Patent number: 4881600
    Abstract: The horseshoe assembly of the present invention comprises a base shoe which is detachably secured to the bottom surface of the horse's hoof. A strap is attached at its opposite ends to the opposite sides of the base shoe and extends over the front upper surface of the horse's hoof to detachably secure the base shoe to the bottom of the horse's hoof. Small screws extend through the base shoe and into the hoof wall of the horse's hoof, but these screws do not extend into the white line of the horse's hoof as with conventional horseshoe nails. A second shoe, pad, or plate may be detachably secured to the undersurface of the base shoe. Different types of pads, shoes and plates can be attached to the bottom surface of the base shoe for particular purposes, and can be removed without requiring the removal of the base shoe.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: November 21, 1989
    Inventor: David J. Nebel
  • Patent number: 4852818
    Abstract: A comminution device is provided which has a rotatable turbine mounted in a housing for causing an air flow through an expansion chamber. Material to be comminuted is carried in an air stream through the expansion chamber where it is rapidly decompressed causing it to explode. The turbine is made of a plurality of air foil blades mounted on a backing plate and is dimensioned in close tolerance to its housing. Exchangeable expansion chambers are provided to vary the rate of pressure reduction which affects the size of the communited material. The shaft of the turbine is mounted in oil cooled bearings to increase the life and efficiency of the bearings and turbine blades.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: August 1, 1989
    Assignee: T.D.J. Co., Inc.
    Inventors: Thomas E. Rolle, David J. Nebel, John L. Shulan, William P. Liljestrom
  • Patent number: 4851110
    Abstract: A device and method for separating particles by mass is provided in which the particles are entrained in an airstream and are ejected into a collection zone where they will fall under the influence of gravity, but will separate longitudinally by mass with the most massive particles traveling the farthest. As an enhancement to the separation, an apparatus for forming at least one air curtain perpendicular to the ejection direction is provided which causes the falling particles to separate into discrete groups.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: July 25, 1989
    Assignee: T.D.J. Co., Inc.
    Inventors: Thomas E. Rolle, David J. Nebel, John L. Shulan, William P. Liljestrom
  • Patent number: 4718609
    Abstract: A comminution device is provided which has a rotatable turbine mounted in a housing for causing an air flow through an expansion chamber. Material to be comminuted is carried in an air stream through the expansion chamber where it is rapidly decompressed causing it to explode. The turbine is made of a plurality of air foil blades mounted on a backing plate and is dimensioned in close tolerance to its housing. Exchangable expansion chambers are provided to vary the rate of pressure reduction which affects the size of the communited material. The shaft of the turbine is mounted in oil cooled bearings to increase the life and efficiency of the bearings and turbine blades.
    Type: Grant
    Filed: March 20, 1986
    Date of Patent: January 12, 1988
    Assignee: T. D. J. Co., Inc.
    Inventors: Thomas E. Rolle, David J. Nebel, John L. Shulan, William P. Liljestrom
  • Patent number: 4648560
    Abstract: A method is provided of separating non-homogeneous materials, such as solid waste by-products from a foundry, by classifying the materials according to size through a series of classifying screens recognizing that particular types of materials within the entire sample tend to fall within certain size ranges permitting the sample to be sorted to a degree according to size to concentrate particular types of materials.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: March 10, 1987
    Assignee: T.D.J. Co., Inc.
    Inventors: Thomas E. Rolle, David J. Nebel, John L. Shulan, William P. Liljestrom