Loading Dock Doorway Seal Patents (Class 52/2.12)
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Patent number: 9945172Abstract: A method and device are presented that creates a channel adjacent a nailing flange of a window in between the window and the rough opening that receives the window. The channel is created by establishing a barrier that prevents foam insulation inserted into the space between the window and the rough opening from reaching the nailing flange. The channel then ensures proper drainage of water that enters the window cavity down to the window sill. A gasket is presented that can be attached to the window or the rough opening to create the barrier. Alternatively, a disintegrating object or a wicking object can be used to impede the flow of insulation foam and to create the appropriate channel. The present invention is equally applicable to doors or other framed objects received into the exterior shell of a building.Type: GrantFiled: August 18, 2016Date of Patent: April 17, 2018Assignee: T-Stop Products, LLCInventor: Thomas Bren
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Patent number: 8991113Abstract: A method and apparatus are provided for sealing a vehicle cargo area to a loading dock. The method includes a step of providing a sealing element. The sealing element includes a mounting surface adapted to sealingly mate against a loading dock, an inner sealing surface at a transverse angle relative to the mounting surface, an outer sealing surface opposing the inner sealing surface and at a transverse angle relative to the mounting surface, and an impact-absorbing surface approximately parallel to the mounting surface. The method further includes the steps of contacting the impact-absorbing surface with a rear face of the vehicle cargo area, deforming the inner sealing surface away from the loading dock, and sealing the inner sealing surface against an inside wall of the vehicle cargo area.Type: GrantFiled: August 10, 2012Date of Patent: March 31, 2015Assignee: DL ManufacturingInventor: Donald L. Metz
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Patent number: 8955265Abstract: A loading dock barrier assembly includes a loading dock having a front wall. Each of a pair of spaced side posts is positioned adjacent to the front wall. A top end of each side post extends above a top edge of the front wall. A barrier is coupled to and extends between the side posts. The barrier is slidable between a deployed position and a retracted position. The barrier blocks passage between the side posts when in the deployed position. The barrier is positioned to permit passage between the side posts when in the retracted position. An actuator moves the barrier. A trigger is coupled to the front wall of the loading dock between the side posts. The trigger is operationally coupled to the actuator and configured to activate the actuator when a truck is positioned in the loading dock adjacent to the front wall.Type: GrantFiled: June 13, 2012Date of Patent: February 17, 2015Inventor: Nani J. Harkrader
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Publication number: 20150000211Abstract: The present invention is directed towards a dock ramp assembly (100) for a docking ope (104) on a facility; the dock ramp assembly comprising a seal for sealing the docking ope with at least one access door ope on a transport vehicle when the transport vehicle is docked with the facility; the seal comprising an upper seal (504) which extends over a top peripheral edge (106) of the docking ope (104) and adjacent side peripheral edges (110A, 110B) of the docking ope, and, a lower seal (600) which extends beneath the lower peripheral edge (108) of the docking ope, such that the seal extends around the entire periphery of the docking ope (104) and the seal is arranged to form a complete seal between the docking ope and the access door ope when the transport vehicle is docked with the facility; wherein, the dock ramp assembly (100) further comprises a retractable bumper (124A, 124B) which is transitioned from an extended, in-use position in front of the docking ope, to, a retracted, stored position remote from theType: ApplicationFiled: February 13, 2013Publication date: January 1, 2015Applicant: MCR Consortium LimitedInventor: Francis Whelan
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Patent number: 8915029Abstract: Example flexible face panels for dock shelters and dock seals at a loading dock include a tip seal and/or an air-filled blister or elongate “bubble” that sealingly conforms to a rear portion of a vehicle (e.g., truck, trailer, etc.) at the dock. In some examples, an air chamber within the blister is open at one or both ends. This prevents otherwise trapped pressurized air from adversely affecting the blister's compliance or its ability to sealingly conform to irregular surfaces of the vehicle. In some examples, as the vehicle backs into and deflects the face panel, the blister distorts and wraps itself around the vehicle's surface irregularities, such as door hardware and protruding lights. In some examples, the face panel's tip seal includes an overlapping seal flap, wherein a series of slits in the tip seal allow the seal to fit over the vehicle's various surface irregularities.Type: GrantFiled: February 24, 2012Date of Patent: December 23, 2014Assignee: Rite-Hite Holding CorporationInventors: Charles Digmann, Timothy J. Schmidt
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Patent number: 8887447Abstract: Flexible structures for use with dock seals and shelters are disclosed. An example flexible structure includes a rigid backer to couple a flexible panel assembly to a loading dock wall and a flexible, self-supporting sheet-shaped member having sufficient rigidity to enable the flexible sheet-shaped member to be cantilevered from a surface of a building without substantial sagging. The sheet-shaped member has an inner surface and an outer surface defining a first longitudinal edge and a second longitudinal edge where the first and second longitudinal edges couple to the rigid backer. The inner surface defines an empty cavity when the sheet-shaped member is coupled to the rigid backer.Type: GrantFiled: October 2, 2012Date of Patent: November 18, 2014Assignee: Rite-Hite Holding CorporationInventors: David J. Hoffmann, Charles J. Digmann, Timothy J. Schmidt
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Patent number: 8733034Abstract: This loading bay includes a hinged ramp to form a passage between the warehouse and the container of the truck. The loading bay has a lateral and upper shelter, and a hinged platform that is located at a level below the hinged ramp. The loading bay includes movable frontal stops, assembled on the front end of the platform and that define contact surfaces for the trailer or container of the truck when it is approaching the loading bay. In addition, a position detector is provided for detecting the position of the frontal stops and activates an luminous signal device to issue different luminous messages depending on the movement of the frontal stops. In addition, the loading bay has a device for longitudinally moving the frontal stops away from the container of the truck once it is stationary in the loading bay.Type: GrantFiled: November 29, 2010Date of Patent: May 27, 2014Assignee: Amiserru, S.L.Inventor: Miguel Angel-Iglesias Ballester
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Patent number: 8656656Abstract: The invention relates to a roof drainage for trucks (I). In order to prevent damage to the loaded goods by water dripping from the roof edge, an adjustable gutter (II) underneath the roof edge is proposed.Type: GrantFiled: November 23, 2007Date of Patent: February 25, 2014Inventor: Niclas Grunewald
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Patent number: 8547234Abstract: A safety system for a truck loading dock with an elevated platform provides an alarm that warns of a hazard at the loading dock such as a forklift operating inside the truck or a falling hazard that may exist due to the dock door being open while a truck is not present at the dock. In cases where a dock's open doorway is protected by a barrier that can be opened or closed, the alarm can be de-activated by closing the barrier. In some embodiments, the safety system includes a remote body sensor that detects when someone or something is near the doorway. In response to the body sensor, a second, more pronounced alarm can warn of more imminent danger where someone on the platform may be too close to an open doorway when a truck is not present.Type: GrantFiled: November 26, 2007Date of Patent: October 1, 2013Assignee: Rite-Hite Holding CorporationInventors: Paul Maly, Tim Muhl, Kyle E. Nelson, Mark R. Swessel
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Patent number: 8458960Abstract: Head curtains for dock shelters or dock seals are disclosed. An example dock apparatus disclosed herein includes a first weather barrier and a second weather barrier. The first and second weather barriers are positioned laterally of a doorway of a loading dock and compressible by a vehicle. The lateral weather barriers include inner surfaces that are to bulge toward each other in response to the vehicle compressing the lateral weather barriers. A head curtain is at least partially positioned between the lateral weather barriers and being engagable by the vehicle, the head curtain having a lateral stiffness such that in response to the vehicle engaging the head curtain and compressing the lateral weather barriers, the head curtain becomes pinched between the bulging inner surfaces to restrict a vertical movement of the curtain.Type: GrantFiled: October 19, 2012Date of Patent: June 11, 2013Assignee: Rite-Hite Holding CorporationInventors: Charles Digmann, Gary Borgerding, Timothy J. Schmidt
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Patent number: 8327587Abstract: Head curtains for dock shelters or dock seals are disclosed. An example head curtain assembly for a vehicle loading dock includes a retractable curtain stiffened by a resiliently compressible foam panel that is more flexible about a horizontal axis than about a vertical axis. The difference in directional flexibility can be created by sewing the foam panel to a pliable cover using a series of parallel horizontal thread lines. The thread lines create in the foam a series of compressed indentations that run horizontally across the curtain so that the curtain tends to bend more easily along those lines. The relative stiffness in the horizontal direction enables the curtain to exert an appreciable sealing force against two lateral dock seal members, and the vertical flexibility makes the curtain easy to retract to accommodate vehicles of various heights. Touch-and-hold fasteners make many of the individual components of the head curtain readily replaceable.Type: GrantFiled: June 23, 2010Date of Patent: December 11, 2012Assignee: Rite-Hite Holding CorporationInventors: Charles Digmann, Gary Borgerding, Timothy J. Schmidt
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Patent number: 8307588Abstract: Flexible structures for use with dock seals and shelters are disclosed. An example flexible structure includes an elongate flexible panel assembly having first and second longitudinal edges and at least one flexible thin-walled member having a length along a longitudinal axis of the elongate flexible panel assembly. The at least one flexible thin-walled member is configured to have a cross-sectional geometry that provides sufficient rigidity to enable the elongate flexible panel assembly to be cantilevered from a surface via the first longitudinal edge without substantial deformation of the cross-sectional geometry of the at least one flexible thin-walled member along the length of the at least one flexible thin-walled member.Type: GrantFiled: June 22, 2010Date of Patent: November 13, 2012Assignee: Rite-Hite Holding CorporationInventors: David J. Hoffmann, Charles J. Digmann
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Patent number: 8307589Abstract: Segmented dock seals for truck loading docks are described herein. An elongate, compressible pad member for use with a loading dock seal is positioned to compliantly conform to an aft end of a trailer positioned proximate to an opening in a building. The pad member includes a body portion having a front side and a back side. The body portion is composed of a compressible foam material. The pad member further includes a plurality of individual fingers projecting away from the front side of the body portion. The individual fingers are integral with the body portion and are spaced apart from each other.Type: GrantFiled: January 10, 2012Date of Patent: November 13, 2012Assignee: 4Front Engineered Solutions, Inc.Inventor: William C. Eungard
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Patent number: 8181401Abstract: Apparatuses for forming at least a partial seal between an open end of a truck, trailer, or other vehicle and an opening in a building are disclosed herein. In one embodiment, an apparatus for forming at least a partial seal includes a first side pad configured to extend vertically adjacent to a first side portion of an opening, a second side pad configured to extend vertically adjacent to a second side portion of the opening, and a head pad assembly configured to extend horizontally adjacent to a top portion of the opening between the first and second side pads. The head pad assembly can include replaceable corner pads positioned on either end of a center pad. The corner pads can be independently attached to the wall of the building and separately removed if replacement is needed.Type: GrantFiled: January 26, 2009Date of Patent: May 22, 2012Assignee: 4Front Engineered Solutions, Inc.Inventor: William C. Eungard
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Patent number: 8112949Abstract: Segmented dock seals for truck loading docks are described herein. An elongate, compressible pad member for use with a loading dock seal is positioned to compliantly conform to an aft end of a trailer positioned proximate to an opening in a building. The pad member includes a body portion having a front side and a back side. The body portion is composed of a compressible foam material. The pad member further includes a plurality of individual fingers projecting away from the front side of the body portion. The individual fingers are integral with the body portion and are spaced apart from each other.Type: GrantFiled: December 12, 2008Date of Patent: February 14, 2012Assignee: 4Front Engineered Solutions, Inc.Inventor: William C. Eungard
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Patent number: 7980029Abstract: An extendible shelter connectable to a building has an extendible frame and a plurality of covers, connected to an outermost frame end, for covering the frame. Adjacent covers are connected to one another at outermost edge ends of their adjacent edges, which are threaded through a fastener. As the frame is extended outwardly away from the building, the adjacent edges are drawn through the fastener, which fastens the edges together to automatically fasten the adjacent covers. When the frame is retracted, the fastener unfastens the edges and covers. Anchor for locking wheels for the frame in fixed position on a ground surface over which the shelter extends are also disclosed.Type: GrantFiled: April 24, 2009Date of Patent: July 19, 2011Inventor: Hamidullah Ahmedy
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Publication number: 20100257790Abstract: An osculating device (100) for a mobile boarding bridge includes an air charge part (110) that is attached to the end of the canopy (140) of a mobile boarding bridge into which air can be injected. A buffer material (120) is provided in the air charge part that can maintain a fixed shape, even if the air is discharged from the air charge part.Type: ApplicationFiled: December 18, 2008Publication date: October 14, 2010Inventors: Ju Ryong Kim, Jong Hoon Lee
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Patent number: 7757442Abstract: Flexible structures for use with dock seals and shelters are disclosed. An example flexible structure includes an elongate flexible panel assembly having first and second longitudinal edges and at least one flexible thin-walled member having a length along a longitudinal axis of the elongate flexible panel assembly. The at least one flexible thin-walled member is configured to have a cross-sectional geometry that provides sufficient rigidity to enable the elongate flexible panel assembly to be cantilevered from a surface via the first longitudinal edge without substantial deformation of the cross-sectional geometry of the at least one flexible thin-walled member along the length of the at least one flexible thin-walled member.Type: GrantFiled: November 4, 2004Date of Patent: July 20, 2010Assignee: Rite-Hite Holding CorporationInventors: David J. Hoffmann, Charles J. Digmann
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Patent number: 7703245Abstract: A seal system is utilized with flat, rough, and/or ribbed wall surfaces and includes a top dock pad and two substantially parallel side dock pads, which substantially frame a doorway at a loading dock. The dock pads are secured to the wall by a plurality of mounting brackets. The dock pads include a first foam layer coupled to a rear portion of a backing structure. The first foam layer operates to accommodate, or substantially “fill-in”, any surface irregularities of the building wall surface, such as a rough wall texture and rib surfaces, to provide an airtight or substantially airtight seal between the building and the seal structure. The dock pads also include a second foam layer coupled to a front portion of the backing structure. The second foam layer is employed to create an effective seal between the building and a rear portion of a vehicle.Type: GrantFiled: June 5, 2008Date of Patent: April 27, 2010Assignee: Chalfant Sewing Fabricators, Inc.Inventor: Jeffrey R. Chalfant
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Publication number: 20090293371Abstract: Head curtains for dock shelters or dock seals are disclosed. An example head curtain assembly for a vehicle loading dock includes a retractable curtain stiffened by a resiliently compressible foam panel that is more flexible about a horizontal axis than about a vertical axis. The difference in directional flexibility can be created by sewing the foam panel to a pliable cover using a series of parallel horizontal thread lines. The thread lines create in the foam a series of compressed indentations that run horizontally across the curtain so that the curtain tends to bend more easily along those lines. The relative stiffness in the horizontal direction enables the curtain to exert an appreciable sealing force against two lateral dock seal members, and the vertical flexibility makes the curtain easy to retract to accommodate vehicles of various heights. Touch-and-hold fasteners make many of the individual components of the head curtain readily replaceable.Type: ApplicationFiled: May 29, 2008Publication date: December 3, 2009Inventors: Charles J. Digmann, Timothy J. Schmidt
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Patent number: 7523588Abstract: The present invention is a entryway protector for use with elevator door jamb panels to protect the surfaces of the panels from sustaining damage from collisions with moving equipment, building materials and furniture. The entryway protector includes the main sections and an angled guide and a minor section which is attached at approximately a right angle. The entryway protector is constructed of a material that is sufficiently rigid to protect the elevator door jamb panel and also to remain in proper position. The entryway protector may be attached to the elevator door jamb panel by suction cups. Preferably the entryway protector is made at a height of approximately forty inches so that two entryway protectors are need for each elevator door jamb panel. Two entryway protectors can be attached together by one or more H clamps.Type: GrantFiled: February 22, 2005Date of Patent: April 28, 2009Assignee: Marquis, Inc.Inventor: Edward R. Katz
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Patent number: 7383664Abstract: A seal system is utilized with flat, rough, and/or ribbed wall surfaces and includes a top dock pad and two substantially parallel side dock pads, which substantially frame a doorway at a loading dock. The dock pads are secured to the wall by a plurality of mounting brackets. The dock pads include a first foam layer coupled to a rear portion of a backing structure. The first foam layer operates to accommodate, or substantially “fill-in”, any surface irregularities of the building wall surface, such as a rough wall texture and rib surfaces, to provide an airtight or substantially airtight seal between the building and the seal structure. The dock pads also include a second foam layer coupled to a front portion of the backing structure. The second foam layer is employed to create an effective seal between the building and a rear portion of a vehicle.Type: GrantFiled: March 22, 2004Date of Patent: June 10, 2008Assignee: Chalfant Sewing Fabricators, Inc.Inventor: Jeffrey R. Chalfant
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Patent number: 7287353Abstract: 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: GrantFiled: August 29, 2003Date of Patent: October 30, 2007Assignee: Rite-Hite Holding CorporationInventors: Gregory J. Thill, Charles J. Ashelin
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Patent number: 7246467Abstract: 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: GrantFiled: April 13, 2000Date of Patent: July 24, 2007Assignee: Rite-Hite Holding CorporationInventors: Jason D. Miller, David J. Hoffmann, Charles J. Ashelin
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Patent number: 6948285Abstract: 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: GrantFiled: March 12, 2003Date of Patent: September 27, 2005Assignee: Rite-Hite Holding CorporationInventors: Jason D. Miller, Charles D. Ashelin
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Publication number: 20040163326Abstract: 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: ApplicationFiled: March 12, 2003Publication date: August 26, 2004Inventors: Jason D. Miller, Charles J. Ashelin
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Publication number: 20040134139Abstract: A combined dock seal and shelter structure for a truck loading dock includes a vehicle-engaging seal member that is removably or replaceably attached to a compressible side pad. A backer can be used to help mount the side pad to a wall, adjacent to a doorway. The side pad preferably comprises a resiliently compressible foam core within a pliable cover 4, while the seal member comprises a pliable curtain or semi-rigid panel that are flexible but less compressible than the foam core.Type: ApplicationFiled: January 9, 2003Publication date: July 15, 2004Inventors: Jeff Busch, Dave Hoffmann, Greg Thill, Gary Borgerding, Charlie Digmann
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Publication number: 20040020141Abstract: At a truck loading dock, a flexible draft shield helps seal a lower inner corner of a dock shelter. Instead of a foam core, the draft shield includes a resiliently flexible frame that supports a pliable cover. In some embodiments, the frame includes a spring steel loop that is able to flex upon being squeezed between two members of the dock shelter. In some cases, the draft shield is hollow and open at the bottom.Type: ApplicationFiled: November 12, 2002Publication date: February 5, 2004Inventor: Gary Borgerding
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Roller sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like
Patent number: 6550191Abstract: A sealing apparatus for forming a weather seal between a vehicle and a loading dock is provided. In some embodiments, the apparatus includes a roller seal rotatably mounted to a support for rotation about an axis. The roller seal is movable in at least a vertical direction from a first position in the path of a vehicle entering the parking area, to a second position wherein the roller seal is disposed adjacent the top of the vehicle. Preferably, a curtain is suspended distally of the roller seal such that, when the roller seal is in the second position, the curtain forms a first seal with the top of the vehicle and the roller seal forms a second seal with the top of the vehicle. The curtain is semi-rigid and, in some instances, defines a ramping surface to facilitate movement of the roller seal over the leading edge of a vehicle approaching the loading dock.Type: GrantFiled: January 9, 2001Date of Patent: April 22, 2003Assignee: Rite-Hite Holding CorporationInventors: David J. Hoffmann, Charles J. Ashelin, Paul D. Rowlett -
Publication number: 20020083653Abstract: A rapidly deployable protective enclosure is constructed from a flexible membrane surrounding a framework of inflatable support members each individually coupled to a central fluid distribution system. Each inflatable support member is individually repairable or replaceable from within the enclosure without effecting the structural integrity of the remaining framework. A system is provided to make the enclosure air tight along interlocking tongue and groove tracks, and an air tight passage between modularly connected enclosures is also provided.Type: ApplicationFiled: February 27, 2001Publication date: July 4, 2002Inventor: Clint J. Hilbert
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Patent number: 6381910Abstract: The present invention is a protection device for use with elevator door jamb panels and entryway doors and jambs to protect the surfaces of these panels and doors from sustaining damage from collisions with moving equipment, building materials and furniture. The device protects the surfaces from scratches and dents when furniture and construction materials inadvertently bang into these protected surfaces. The entryway protector includes two sections and a securing system. A main rectangular section is separated by a line of stitching from a minor rectangular section, both sections including a padding material. The securing system can secure the protector to the surfaces against dislodging by contact with equipment, building materials and furniture.Type: GrantFiled: October 25, 2000Date of Patent: May 7, 2002Inventor: Edward R. Katz
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Patent number: 6374554Abstract: The present invention provides a flexible frame for a loading dock shelter. The flexible frame utilizes open channels that are clinched together to serve as supports. The supports are used in side frames that form part of the flexible frame. Each side frame includes a back support, a front support, and in a preferred form, one or more lateral supports that are pivotally connected to both the front and back supports. At least one of said supports is formed from open channels which are secured together, preferably by clinching. The back supports of the flexible frame are mounted to a loading dock wall. The pivotal connection between the lateral support and the front and back supports allows the front support to move relative to the back support when a vehicle comes into contact with the side frame as the vehicle enters the loading dock shelter. The present invention also provides an improved method of making a flexible frame for a vehicle shelter and mounting the flexible frame to a loading dock.Type: GrantFiled: March 22, 2000Date of Patent: April 23, 2002Assignee: Kelley Company, Inc.Inventor: William C. Eungard
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Patent number: 6339905Abstract: An aperture covering including track-guided interconnectable panels that are compactly stored in a storage area containing weight counterbalancing mechanisms, such as a compressed spring, is described. When the panels are stacked in the storage area and removed one at a time, the first panel is removed from the storage area and enters the track. As the first panel moves through the track, it interlocks with the second panel and forces the second panel out of the storage area and into the track. Interlocking and removal of the panels continues until all of the panels are removed or the first panel reaches the end of the track. Weight counterbalancing can be assisted by track-contained toothed belts, cable and ball drive mechanisms, or other counterbalancing methods. The resulting aperture covering requires minimal storage space for the open aperture position, minimizes exposure to potentially hazardous counterbalancing mechanisms, and allows for heavy-weight panel construction.Type: GrantFiled: July 20, 1999Date of Patent: January 22, 2002Inventor: Clark Craig
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Patent number: 6272799Abstract: A loading dock seal includes a low-profile backer that is vertically adjustable relative to a wall-mounted bracket to facilitate the installation of the seal. In some embodiments the bracket is generally U-shaped with a turned-in lip on one leg of the U-shape. The backer, to which a compressible foam pad is attached, is similarly U-shaped to nest within the bracket. During installation of the seal, the turned-in lip restrains the backer horizontally, yet allows the backer to be adjusted vertically to properly position the seal. Once properly adjusted, an added fastener further fixes the backer to the bracket, so that the seal is fixed both horizontally and vertically. In some embodiments, the low profile of the backer is achieved by forming the both the backer and the bracket out of sheet metal. The backer includes elongated channels or slots for bolt head clearance to accommodate anchor bolts that connect the bracket to a wall.Type: GrantFiled: June 21, 1999Date of Patent: August 14, 2001Assignee: Rite-Hite Holding CorporationInventors: Charles J. Ashelin, Jason D. Miller
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Roller sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like
Publication number: 20010004814Abstract: A sealing apparatus for forming a weather seal between a vehicle and a loading dock is provided. In some embodiments, the apparatus includes a roller seal rotatably mounted to a support for rotation about an axis. The roller seal is movable in at least a vertical direction from a first position in the path of a vehicle entering the parking area, to a second position wherein the roller seal is disposed adjacent the top of the vehicle. Preferably, a curtain is suspended distally of the roller seal such that, when the roller seal is in the second position, the curtain forms a first seal with the top of the vehicle and the roller seal forms a second seal with the top of the vehicle. The curtain is semi-rigid and, in some instances, defines a ramping surface to facilitate movement of the roller seal over the leading edge of a vehicle approaching the loading dock.Type: ApplicationFiled: January 9, 2001Publication date: June 28, 2001Applicant: RITE-HITE HOLDING CORPORATIONInventors: David J. Hoffmann, Charles J. Ashelin, Paul D. Rowlett -
Roller sealing apparatus for forming a weather seal between a vehicle and a loading dock or the like
Patent number: 6233885Abstract: A sealing apparatus for forming a weather seal between a vehicle and a loading dock is provided. In some embodiments, the apparatus includes a roller seal rotatably mounted to a support for rotation about an axis. The roller seal is movable in at least a vertical direction from a first position in the path of a vehicle entering the parking area, to a second position wherein the roller seal is disposed adjacent the top of the vehicle. Preferably, a curtain is suspended distally of the roller seal such that, when the roller seal is in the second position, the curtain forms a first seal with the top of the vehicle and the roller seal forms a second seal with the top of the vehicle. The curtain is semi-rigid and, in some instances, defines a ramping surface to facilitate movement of the roller seal over the leading edge of a vehicle approaching the loading dock.Type: GrantFiled: February 24, 1998Date of Patent: May 22, 2001Assignee: Rite-Hite Holding CorporationInventors: David J. Hoffmann, Charles J. Ashelin, Paul D. Rowlett -
Patent number: 6216396Abstract: The present invention is an inflatable barrier device for use with elevator door jamb panels and entryway doors and jambs to protect the surfaces of these panels and doors from sustaining damage from collisions with moving equipment, building materials and furniture. The device protects the surfaces from scratches and dents when furniture and construction materials inadvertently bang into these protected surfaces. The entryway protector comprises two sections and securing components. An inflatable main rectangular section is separated by a line of stitching from a minor rectangular section or flap that is filled with padding material. The securing components secure the protector to the surfaces against dislodging by contact with equipment, building materials and furniture.Type: GrantFiled: May 30, 2000Date of Patent: April 17, 2001Assignee: Office Moving Systems, Inc.Inventor: Edward R. Katz
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Patent number: 6205721Abstract: A sealing apparatus for forming a weather seal between a vehicle and a loading dock is provided. In some embodiments, the apparatus includes a compressible seal and a support mounted for pivoting away from the top of an adjacent vehicle to facilitate exiting. In some embodiments, a stiffening member is located proximally to the seal to provide a compression force between the seal and the top of the vehicle. In other embodiments, the apparatus includes a deflectable seal and a locator including a distal recess for engaging the leading edge of a vehicle entering the parking area.Type: GrantFiled: December 9, 1997Date of Patent: March 27, 2001Assignee: Rite-Hite Holding CorporationInventors: Charles J. Ashelin, Thomas J. Boffeli, David J. Hoffmann