Patents by Inventor Richard A. Loeffler, Sr.

Richard A. Loeffler, Sr. 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: 6050394
    Abstract: Drive and related travel tension is decreased at selected locations in special purpose travel paths for woven-wire conveyor belts enabling decrease in tensile strength requirements of metal wire components as assembled into a woven-wire belt. Connector rod configurations with varying depth seats, at selected locations for individual helically-wound loops of interacting spiral wires, provide for expansion of belt length at selected locations where needed to decrease or eliminate metal wire component strain.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: April 18, 2000
    Assignee: Maryland Wire Belt, Inc.
    Inventors: Ronald G. Daringer, Richard A. Loeffler, Sr., H. William West
  • Patent number: 6041916
    Abstract: A roll, along with methods of fabricating and using such roll, for driving a woven-wire conveyor belt, provide substantially-uniform drive across belt width, avoid disruption of belt drive, provide unidirection tracking of such belt, and avoid disruption of conveyed product during treatment of conveyed product at temperatures other than ambient. During conveyance of product for heating or cooling treatment, woven-wire conveyor belts and rolls driving such belts are often at differing temperatures, especially during start-up and shutdown of operations. Such temperature differentials can cause dimensional changes in a belt which change the relative location of belt recesses with respect to the roll surface. Selective shaping and dimensioning of roll protrusions from the widthwise center of a roll toward each lateral end of the roll eliminates mismatching of belt recesses due to changes in belt width during product processing at temperatures other than ambient.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: March 28, 2000
    Assignee: Maryland Wire Belts, Inc.
    Inventors: Ronald G. Daringer, Richard A. Loeffler, Sr., H. William West
  • Patent number: 5816988
    Abstract: A roll, for driving a woven-wire conveyor belt, provides substantially-uniform drive across the belt width, avoids disruption of belt drive, provide unidirection tracking of the belt, and avoids disruption of conveyed products during treatment of conveyed products at temperatures other than ambient. During conveyance of a product for heating or cooling treatment, woven-wire conveyor belts and rolls driving the belts are often at differing temperatures, especially during start-up and shutdown of operations. Such temperature differentials can cause dimensional changes in a belt which change the relative location of belt recesses with respect to the roll surface. Selective shaping and dimensioning of roll protrusions from the widthwise center of a roll toward each lateral end of the roll eliminates mismatching of belt recesses due to changes in belt width during product processing at temperatures other than ambient.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: October 6, 1998
    Assignee: Maryland Wire Belts, Inc.
    Inventors: Ronald G. Daringer, Richard A. Loeffler, Sr., H. William West