Patents by Inventor Charles J. Ashelin

Charles J. Ashelin 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: 9969576
    Abstract: Inflatable weather barriers for loading docks are disclosed. An example weather barrier includes an upper bellows defining a header air chamber between a top portion and a bottom portion of the upper bellows. A blower is in fluid communication with the header air chamber and the blower is selectively activated to discharge a pressurized air into the header air chamber to urge the upper bellows from a raised position toward a lowered position. The weather barrier includes a first extension spring that is under a first extension spring tension, a first pulley, and a first elongate member that is pliable. The first elongate member is under a first elongate member tension that urges the upper bellows toward the raised position.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: May 15, 2018
    Assignee: RITE-HITE HOLDING CORPORATION
    Inventors: Charles J. Ashelin, Collin Thole, Frank Heim, Timothy J. Schmidt
  • Patent number: 9592972
    Abstract: Example lateral sealing members for use with weather barriers are disclosed. An example lateral sealing member includes a lateral sealing member being vertically elongate. The lateral sealing member has a J-shaped cross-section extending between an attached end and a tip of the lateral sealing member. The lateral sealing member has a groove along the tip. The lateral sealing member is movable between an activated configuration and a relaxed configuration. The tip to extend farther into a vehicle pathway when the lateral sealing member is in the relaxed configuration than when the lateral sealing member is in the activated configuration. A tip seal is provided along the tip of the lateral sealing member. The tip seal is to protrude in the groove.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: March 14, 2017
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles Digmann, Charles J. Ashelin, Frank Heim, Gary Borgerding, Ryan Withrow
  • Publication number: 20170057764
    Abstract: Example lateral sealing members for use with weather barriers are disclosed. An example lateral sealing member includes a lateral sealing member being vertically elongate. The lateral sealing member has a J-shaped cross-section extending between an attached end and a tip of the lateral sealing member. The lateral sealing member has a groove along the tip. The lateral sealing member is movable between an activated configuration and a relaxed configuration. The tip to extend farther into a vehicle pathway when the lateral sealing member is in the relaxed configuration than when the lateral sealing member is in the activated configuration. A tip seal is provided along the tip of the lateral sealing member. The tip seal is to protrude in the groove.
    Type: Application
    Filed: August 24, 2015
    Publication date: March 2, 2017
    Inventors: Charles Digmann, Charles J. Ashelin, Frank Heim, Gary Borgerding, Ryan Withrow
  • Patent number: 8991467
    Abstract: Example room dividers are described herein. The example room dividers include a flexible curtain with features pertaining to security, impactability, insulation, sound absorption, configurability, and/or flame resistance. In some examples, the curtain comprises an inorganic carbon fiber pad sandwiched between two sheets of fiberglass fabric coated with silicone rubber. A tongue-and-groove joint, in some examples, enables the interconnection of a series of curtains to create room dividers of various lengths. In some examples, the curtain comprises a full-width wire mesh sandwiched between two sheets of vinyl coated polyester fabric, wherein a touch-and-hold fastener at the outer perimeter of the curtain and overlapping the wire mesh holds the two sheets together and holds the wire mesh in place. In some examples, the flexibility of the curtain allows the curtain to respond to impacts and/or air pressure differentials.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: March 31, 2015
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles J. Ashelin, David J. Hoffmann, Matt Fleckenstein, Gregory J. Thill
  • Patent number: 8839842
    Abstract: Example insulated dividers, such as curtain-doors and temporary walls for dividing areas of a building, include features that make the dividers particularly suited for food and drug related environments that demand cleanliness and require dividers to be periodically washed down to remove microorganisms and other contaminants. Some example dividers include a touch-and-hold fastener to hold a flexible insulated pad within an internal space of a pliable hollow panel. In some examples, the insulated pad is made of polyester batting with loops of fiber to which the hook portion of the touch-and-hold fastener can engage. In some examples, both the insulated pad and the touch-and-hold fastener are completely contained within the hollow panel so that neither the pad nor the fastener provides an exposed external surface for harboring microorganisms. In some examples, the pliable panel's outer peripheral edge is hermetically sealed by thermal bonding, heat sealing, welding and/or ultrasonic joining.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: September 23, 2014
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles J. Ashelin, David J. Hoffmann
  • Publication number: 20130189471
    Abstract: Example flexible wall panels (e.g., demising walls) comprising a flexible, thermally insulated multilayer panel with a flammable core has a surprisingly low flame-spread index and smoke-developed index due to the flammable core being sandwiched between two fire resistant pads. The flammable core's high thermal resistance (high R-value) provides most of the panel's thermal insulation while a peripheral compressed region and the fire resistant pads help keep the flammable core from burning. In some examples, the materials and thicknesses of the panel's core, fire resistant pads and surrounding outer skin are such that the panel is of sufficient flexibility to be folded onto itself without experiencing appreciable permanent damage.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 25, 2013
    Inventors: Charles J. Ashelin, David J. Hoffmann
  • Publication number: 20130098567
    Abstract: Example insulated dividers, such as curtain-doors and temporary walls for dividing areas of a building, include features that make the dividers particularly suited for food and drug related environments that demand cleanliness and require dividers to be periodically washed down to remove microorganisms and other contaminants. Some example dividers include a touch-and-hold fastener to hold a flexible insulated pad within an internal space of a pliable hollow panel. In some examples, the insulated pad is made of polyester batting with loops of fiber to which the hook portion of the touch-and-hold fastener can engage. In some examples, both the insulated pad and the touch-and-hold fastener are completely contained within the hollow panel so that neither the pad nor the fastener provides an exposed external surface for harboring microorganisms. In some examples, the pliable panel's outer peripheral edge is hermetically sealed by thermal bonding, heat sealing, welding and/or ultrasonic joining.
    Type: Application
    Filed: October 21, 2011
    Publication date: April 25, 2013
    Inventors: Charles J. Ashelin, David J. Hoffmann
  • Patent number: 8353136
    Abstract: Dock seal for use with loading docks are described. An example dock seal includes a compressible body having a front compressible body and a rear compressible body, where the rear compressible body is interposed between the wall and the front compressible body when the dock seal is mounted to the wall. A flexible panel pivotally couples the compressible body to the wall.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: January 15, 2013
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles J. Ashelin, David J. Hoffmann
  • Publication number: 20120018103
    Abstract: Example room dividers are described herein. The example room dividers include a flexible curtain with features pertaining to security, impactability, insulation, sound absorption, configurability, and/or flame resistance. In some examples, the curtain comprises an inorganic carbon fiber pad sandwiched between two sheets of fiberglass fabric coated with silicone rubber. A tongue-and-groove joint, in some examples, enables the interconnection of a series of curtains to create room dividers of various lengths. In some examples, the curtain comprises a full-width wire mesh sandwiched between two sheets of vinyl coated polyester fabric, wherein a touch-and-hold fastener at the outer perimeter of the curtain and overlapping the wire mesh holds the two sheets together and holds the wire mesh in place. In some examples, the flexibility of the curtain allows the curtain to respond to impacts and/or air pressure differentials.
    Type: Application
    Filed: July 21, 2010
    Publication date: January 26, 2012
    Inventors: Charles J. Ashelin, David J. Hoffmann, Matt Fleckenstein, Gregory J. Thill
  • Publication number: 20110265400
    Abstract: Dock seal for use with loading docks are described. An example dock seal includes a compressible body having a front compressible body and a rear compressible body, where the rear compressible body is interposed between the wall and the front compressible body when the dock seal is mounted to the wall. A flexible panel pivotally couples the compressible body to the wall.
    Type: Application
    Filed: July 7, 2011
    Publication date: November 3, 2011
    Inventors: Charles J. Ashelin, David J. Hoffmann
  • Patent number: 7877831
    Abstract: Weather shields for underneath a dock leveler are described herein. An example weather shield described herein includes an environmental barrier disposed underneath a deck where the environmental barrier includes a first section and a second section. A tensioner is coupled to the environmental barrier and creates a vertical tension in the environmental barrier in an upward direction such that a) when the deck is in the raised position, both the first section and the second section are in vertical tension; b) when the deck is in the lowered position, both the first section and the second section are in less vertical tension than they are when the deck is in the raised position; and c) when the deck is in the intermediate position, the first section is in appreciably greater vertical tension than the second section such that there is a discrete incremental difference in vertical tension in the environmental barrier.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: February 1, 2011
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles J. Digmann, Charles J. Ashelin
  • Patent number: 7584517
    Abstract: A shield system for shielding the area underneath a dock leveler allows a gap to be created either above or below the shield when the deck rises, whereby a shield of a given height dimension can used on dock levelers of various lift heights. In some embodiments, the shield is a pliable curtain that a tensioner holds taut during some operations of the dock leveler, yet the curtain can collapse for below-dock operation. The shield system can be used on horizontally storing dock levelers or vertically storing ones. In some cases, the system includes a pliable web that extends between a front face of the deck and a lip extending from the deck. The web can help seal the area adjacent to a pair of dock bumpers.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: September 8, 2009
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles J. Digmann, Charles J. Ashelin
  • Publication number: 20080104902
    Abstract: A dock seal, such as a head seal mountable above a doorway of a loading dock, includes a compressible body with a support panel. The compressible body can conformably seal against the rear edge of a vehicle's enclosed trailer as the vehicle backs the trailer up against the seal. The support panel provides relatively dense structure for mounting the seal to the wall of a building. Compared to the horizontal distance that the compressible body projects from the wall, the support panel is ultra-thin to avoid consuming compressible space between the wall and the rear of the trailer. In some cases, a flexible panel suspends the compressible body and its support panel from the wall such that the flexible panel allows the dock seal to move relative to the wall.
    Type: Application
    Filed: November 7, 2006
    Publication date: May 8, 2008
    Applicant: RITE-HITE HOLDING CORPORATION
    Inventors: Charles J. Ashelin, David J. Hoffmann
  • Patent number: 7334281
    Abstract: A shield system for shielding the area underneath a dock leveler allows a gap to be created either above or below the shield when the deck rises, whereby a shield of a given height dimension can used on dock levelers of various lift heights. In some embodiments, the shield is a pliable curtain that a tensioner holds taut during some operations of the dock leveler, yet the curtain can collapse for below-dock operation. The shield system can be used on horizontally storing dock levelers or vertically storing ones. In some cases, the system includes a pliable web that extends between a front face of the deck and a lip extending from the deck. The web can help seal the area adjacent to a pair of dock bumpers.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: February 26, 2008
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles J. Digmann, Charles J. Ashelin
  • Patent number: 7287353
    Abstract: A compressible seal for a loading dock includes a pliable heat shield that helps protect the seal from concentrated heat generated by a truck's taillight being pressed against the seal. The seal includes a compressible foam core protected by a tough outer covering. The heat shield is preferably placed against the foam core, just underneath the cover. The shield reflects heat away from the foam and helps disperse the heat over a broader area to reduce the peak temperature of any hot spots.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: October 30, 2007
    Assignee: Rite-Hite Holding Corporation
    Inventors: Gregory J. Thill, Charles J. Ashelin
  • Patent number: 7246467
    Abstract: A compressible seal for a loading dock includes a pliable heat shield that helps protect the seal from concentrated heat generated by a truck's taillight being pressed against the seal. The seal includes a compressible foam core protected by a tough outer covering. The heat shield is preferably placed against the foam core, just underneath the cover. The shield reflects heat away from the foam and helps disperse the heat over a broader area to reduce the peak temperature of any hot spots.
    Type: Grant
    Filed: April 13, 2000
    Date of Patent: July 24, 2007
    Assignee: Rite-Hite Holding Corporation
    Inventors: Jason D. Miller, David J. Hoffmann, Charles J. Ashelin
  • Patent number: 7146673
    Abstract: A shield system for shielding the area underneath a dock leveler allows a gap to be created either above or below the shield when the deck rises, whereby a shield of a given height dimension can used on dock levelers of various lift heights. In some embodiments, the shield is a pliable curtain that a tensioner holds taut during some operations of the dock leveler, yet the curtain can collapse for below-dock operation. The shield system can be used on horizontally storing dock levelers or vertically storing ones. In some cases, the system includes a pliable web that extends between a front face of the deck and a lip extending from the deck. The web can help seal the area adjacent to a pair of dock bumpers.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: December 12, 2006
    Assignee: Rite-Hite Holding Corporation
    Inventors: Charles J. Digmann, Charles J. Ashelin
  • Publication number: 20040163326
    Abstract: In order to provide a durable loading dock shelter with an effective seal, the dock shelter is provided with a face panel that is relatively lightweight and firm, yet moveable for sealing against vehicles of various size and position. The face panel can be used as a side curtain or a head curtain. To provide the face panel with durability while minimizing its weight, the face panel is thermoformed of twin sheets of plastic to provide a durable outer shell with a hollow interior. In some embodiments, the face panel is moveable by virtue of an integral living hinge that connects the face panel to a generally stationary support panel.
    Type: Application
    Filed: March 12, 2003
    Publication date: August 26, 2004
    Inventors: Jason D. Miller, Charles J. Ashelin
  • Publication number: 20040123532
    Abstract: A compressible seal for a loading dock includes a pliable heat shield that helps protect the seal from concentrated heat generated by a truck's taillight being pressed against the seal. The seal includes a compressible foam core protected by a tough outer covering. The heat shield is preferably placed against the foam core, just underneath the cover. The shield reflects heat away from the foam and helps disperse the heat over a broader area to reduce the peak temperature of any hot spots.
    Type: Application
    Filed: August 29, 2003
    Publication date: July 1, 2004
    Applicant: RITE-HITE HOLDING CORPORATION
    Inventors: Gregory J. Thill, Charles J. Ashelin
  • Publication number: 20030177720
    Abstract: A sealing curtain for a loading dock includes a pliable heat shield that helps protect the sealing curtain from concentrated heat generated by a truck's taillight being pressed against the sealing curtain. The heat shield is preferably placed just underneath a sealing surface of the sealing curtain. The heat shield reflects heat away from an inner surface and disperses the heat over a broader area to reduce the peak temperature of any hot spots. The sealing curtain may be height adjustable to position the heat shield at various heights along the loading dock.
    Type: Application
    Filed: February 20, 2003
    Publication date: September 25, 2003
    Inventors: David J. Hoffmann, Charles J. Ashelin