Patents by Inventor David E. Sisk

David E. Sisk 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: 9267611
    Abstract: A multi-angle butterfly valve extension assembly is disclosed which comprises a universal joint for attachment to a stem of a butterfly valve, a shaft having a first end and a second end, the first end being connected to the universal joint, and an extension housing for supporting the shaft with the second end of the shaft extending out of the extension housing.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 23, 2016
    Assignee: Bulk Tank Inc.
    Inventor: David E. Sisk
  • Publication number: 20160040786
    Abstract: An aeration butterfly valve including a butterfly disc valve, located within one or more configured valve housings, furnishes a disc valve that rotates about its own axis separate from the axis of rotation of the pivot stems that hold the disc valve in position for manipulation between opening and closure, with respect to the housing in which the disc valve mounts for operation. A ring seal provided within the housing is formed when the housing parts are engaged together, in the assembly of the housing, forcing a portion of the ring seal interiorly, within the housing passage and flow path, and in alignment with the circumferential periphery of the disc valve, to provide for complete sealing closure when the disc valve is pivoted into closure, thereby eliminating the need for the pivot stem and the disc connection to be sealed in their assembly within the aeration butterfly valve.
    Type: Application
    Filed: September 14, 2015
    Publication date: February 11, 2016
    Inventor: David E. Sisk
  • Patent number: 9175796
    Abstract: A directional hopper tee has a fluted interior vertical pipe that merges into a horizontal pipe. The horizontal pipe has an inlet that may receive bulk material, and subject to pressurized air that conveys the bulk material through the hopper tee. Bulk material may be discharged from a hopper through the vertical pipe, for conveyance for discharge from the horizontal pipe of the tee. A closure gate or door is provided through the bottom of the tee, generally in alignment with the vertical pipe, to allow for discharge or dropping of the granular material directly downwardly through and from the tee. The arcuate door is hinged on one side, and is locked by a cam lock on the opposite side, when located into closure against the bottom of the tee, but can be forced opened, through its cam mechanism, to provide for opening of the arcuate door and allow a direct downward discharge of the granular bulk material, from any hopper, and through the drop opening of the tee, as required.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: November 3, 2015
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Publication number: 20150308606
    Abstract: An unload elbow with spherical wear pocket is disclosed which comprises a body having an inlet end, an outlet end, and a spherical wear pocket formed near the outlet end. The spherical wear pocket is capable of trapping material that is being unloaded through the unload elbow to trap a portion of material being unloaded so that any other material being unloaded will contact the trapped material and not impact the wear pocket to prematurely wear out the unload elbow.
    Type: Application
    Filed: March 9, 2015
    Publication date: October 29, 2015
    Inventor: David E. Sisk
  • Patent number: 9057445
    Abstract: An improved disc for a butterfly valve having reduced structure within the bore of the valve, so as to minimize obstruction to the flow of granular material therethrough. Accelerated flow of granular material through the valve is obtained because of the thin dimensions of the butterfly valve. The modified disc includes upper and lower sockets, most of its structure is outside the perimeter of the disc. The disc may be of arcuate shape.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: June 16, 2015
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Publication number: 20150052863
    Abstract: A filter guide ring is disclosed which comprises a ring having a top surface, a bottom surface; an inner ring side, and an outer ring side, a first leg having a first short leg portion extending outwardly from the outer ring side, a first elbow connected to the first short leg portion, and a first long leg portion extending upwardly from the first elbow, a second leg having a second short leg portion extending outwardly from the outer ring side, a second elbow connected to the second short leg portion, and a second long leg portion extending upwardly from the second elbow, and a third leg having a third short leg portion extending outwardly from the outer ring side, a third elbow connected to the third short leg portion, and a third long leg portion extending upwardly from the third elbow.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 26, 2015
    Inventor: David E Sisk
  • Publication number: 20140353962
    Abstract: A hopper tee having a horizontal portion through which granular material is unloaded from a tank trailer or hopper car, the hopper tee integrally forms a vertical segment, that secures with the bottom of the hopper, to provide for unloading of granular material for usage or storage. The upper front portion of the tee, as it transitions from its vertical segment to the horizontal flow path has secured or cast therewith a ledge, that provides for accumulation of the unloading granular material therein, to function as a wear pad to resist against abrasion, and accelerated wear out, of the tee, at that location, during prolonged usage.
    Type: Application
    Filed: August 7, 2014
    Publication date: December 4, 2014
    Inventor: David E. Sisk
  • Patent number: 8807529
    Abstract: A butterfly valve for use with a tank trailer includes housing, a lateral extension, a shaft provided through the extension, the back end of the shaft having a seat for accommodating a handle thereon, and further extensions may connect with the first mentioned extension. The handle turns the butterfly valve between opened and closed positions.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: August 19, 2014
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Publication number: 20140191147
    Abstract: An aeration butterfly valve including a butterfly disc valve, located within one or more configured valve housings, furnishes a disc valve that rotates about its own axis separate from the axis of rotation of the pivot stems that hold the disc valve in position for manipulation between opening and closure, with respect to the housing in which the disc valve mounts for operation. A ring seal provided within the housing is formed when the housing parts are engaged together, in the assembly of the housing, forcing a portion of the ring seal interiorly, within the housing passage and flow path, and in alignment with the circumferential periphery of the disc valve, to provide for complete sealing closure when the disc valve is pivoted into closure, thereby eliminating the need for the pivot stem and the disc connection to be sealed in their assembly within the aeration butterfly valve.
    Type: Application
    Filed: March 15, 2013
    Publication date: July 10, 2014
    Inventor: David E. Sisk
  • Patent number: 8727306
    Abstract: A valve handle for a bulk commodity hopper valve, the handle including an extended handle bar member, with a valve stem socket opening near its distal end, an associated, shorter lock lever member positioned to extend generally adjacent the handle bar member, the handle bar and lock lever members having corresponding offset bends along their lengths to clear interfering equipment and being pivotally connected to one another at an intermediate position along their lengths, and a biasing spring normally biasing the proximate ends of the handle bar and lock lever members away from one another and the distal ends thereof towards one another, with the distal end of the lock lever member having a lever tip associated therewith movable into and out of engagement with the valve lock notches as the proximate ends of the handle bar member and lock lever member are squeezed together and released by a user and the valve handle is rotated to operate the valve.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: May 20, 2014
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Publication number: 20140103241
    Abstract: A multi-angle butterfly valve extension assembly is disclosed which comprises a universal joint for attachment to a stem of a butterfly valve, a shaft having a first end and a second end, the first end being connected to the universal joint, and an extension housing for supporting the shaft with the second end of the shaft extending out of the extension housing.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 17, 2014
    Inventor: David E. Sisk
  • Publication number: 20140084581
    Abstract: A grooved lock coupler for holding a tee to a flow line for forced air conveyance and unloading of dry bulk granular material from a storage container vehicle is disclosed which comprises a tee having a first end, a second end, an inlet end, and a circumferential groove provided on the first end and a coupler for interconnecting to a flow line from the tee, the coupler having a cam lock fastener pivotally mounted on the coupler, the cam lock fastener cooperating with an opening in the coupler proximate the fastener to allow for the cam lock to extend through the opening in the coupler and to engage within the groove to lock the flow line and coupler to the tee in preparation for an unloading process.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 27, 2014
    Inventor: David E. Sisk
  • Patent number: 8657898
    Abstract: An air filtration unit for conveying bulk granular material from a tank trailer, and uses air pressure to achieve granular flow, the air filtration unit incorporates an intake that induces a spiral flow, the unit incorporates a lid at the back end of the filter housing, and a baffle structure at the intake inlet of the unit, to dampen sound.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 25, 2014
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Publication number: 20130306167
    Abstract: A check valve for use in an air flow line to convey pressurized air to unload a tank trailer, railroad car, or other conveying facility. It includes a housing, having a valve seat, a check valve for seating upon the valve seat, a bushing holding the valve stem for the check valve, with the bushing having a channel therein, through which the valve stem locates, and contains a spring therein that is totally encapsulated within the bushing chamber, during usage. The housing is internally contoured to enhance the flow of pressurized air therethrough.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 21, 2013
    Inventors: David E. Sisk, Peter J. Kemp, Brent D. Kemp, Jason M. Huskey
  • Publication number: 20130307262
    Abstract: A hopper tee having a horizontal portion through which granular material is unloaded from a tank trailer or hopper car, the hopper tee integrally forms a vertical segment, that secures with the bottom of the hopper, to provide for unloading of granular material for usage or storage. The upper front portion of the tee, as it transitions from its vertical segment to the horizontal flow path has secured or cast therewith a ledge, that provides for accumulation of the unloading granular material therein, to function as a wear pad to resist against abrasion, and accelerated wear out, of the tee, at that location, during prolonged usage.
    Type: Application
    Filed: July 15, 2013
    Publication date: November 21, 2013
    Inventor: David E. Sisk
  • Patent number: D696748
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: December 31, 2013
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Patent number: D703788
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: April 29, 2014
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Patent number: D711509
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: August 19, 2014
    Assignee: Bulk Tank Inc.
    Inventor: David E. Sisk
  • Patent number: D722140
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: February 3, 2015
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk
  • Patent number: D726288
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: April 7, 2015
    Assignee: Bulk Tank, Inc.
    Inventor: David E. Sisk