Patents by Inventor David R. Gill
David R. Gill 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).
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Patent number: 11421718Abstract: A toggle cam bolt is provided including a shank, a cam lever, a recess, and a toggle. The shank includes a first end and a second end. The cam lever is rotatably attached to the first end by a first pivot pin. The cam lever includes a lever handle and a cam lobe that is eccentric relative to the first pivot pin. The recess is located at the second end of the shank. The toggle is attached to the recess so that it is rotatable about a second pivot pin. A method of clamping two or more parts together using a toggle cam bolt is also provided.Type: GrantFiled: February 27, 2020Date of Patent: August 23, 2022Assignee: Flexicon CorporationInventor: David R. Gill
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Patent number: 10947987Abstract: A centrifugal pump, and components thereof, operable at high speeds, is described under the present disclosure. A hard polymer sleeve can be applied to certain surfaces of a seal casing within the pump. If the sleeve is applied along surfaces near the center shaft, then the hard polymer will withstand the forces and pressures of the system. The hard polymer might not be used along the outer diameter, farther from the shaft, because velocities are higher the further out one goes. The current disclosure allows for the use of fluoropolymer in the lining sleeve. The benefits of fluoropolymer have been unavailable in high speed centrifugal pumps because the forces are too great on the periphery of the seal casing. However, the lower speeds along the interior, near the shaft, allow fluoropolymer to be used.Type: GrantFiled: April 8, 2016Date of Patent: March 16, 2021Assignee: Sundyne, LLCInventors: David R. Gill, Ryan Grimm, Jared Wageman
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Publication number: 20200271145Abstract: A toggle cam bolt is provided including a shank, a cam lever, a recess, and a toggle. The shank includes a first end and a second end. The cam lever is rotatably attached to the first end by a first pivot pin. The cam lever includes a lever handle and a cam lobe that is eccentric relative to the first pivot pin. The recess is located at the second end of the shank. The toggle is attached to the recess so that it is rotatable about a second pivot pin. A method of clamping two or more parts together using a toggle cam bolt is also provided.Type: ApplicationFiled: February 27, 2020Publication date: August 27, 2020Applicant: Flexicon CorporationInventor: David R. Gill
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Patent number: 10087004Abstract: A material handling hopper includes an integrally formed handling body that defines an inlet, an outlet, and an axis. The handling body has a seamless sidewall extending between the inlet and the outlet. The sidewall is circular in cross section in a plane perpendicular to the axis. The sidewall is curvilinear and defines a first height between an axial location of a first inner diameter and an axial location of a second inner diameter.Type: GrantFiled: May 4, 2017Date of Patent: October 2, 2018Inventor: David R. Gill
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Publication number: 20170320668Abstract: A material handling hopper includes an integrally formed handling body that defines an inlet, an outlet, and an axis. The handling body has a seamless sidewall extending between the inlet and the outlet. The sidewall is circular in cross section in a plane perpendicular to the axis. The sidewall is curvilinear and defines a first height between an axial location of a first inner diameter and an axial location of a second inner diameter.Type: ApplicationFiled: May 4, 2017Publication date: November 9, 2017Inventor: David R. Gill
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Publication number: 20170292527Abstract: A centrifugal pump, and components thereof, operable at high speeds, is described under the present disclosure. A hard polymer sleeve can be applied to certain surfaces of a seal casing within the pump. If the sleeve is applied along surfaces near the center shaft, then the hard polymer will withstand the forces and pressures of the system. The hard polymer might not be used along the outer diameter, farther from the shaft, because velocities are higher the further out one goes. The current disclosure allows for the use of fluoropolymer in the lining sleeve. The benefits of fluoropolymer have been unavailable in high speed centrifugal pumps because the forces are too great on the periphery of the seal casing. However, the lower speeds along the interior, near the shaft, allow fluoropolymer to be used.Type: ApplicationFiled: April 8, 2016Publication date: October 12, 2017Applicant: Sundyne, LLCInventors: David R. Gill, Ryan Grimm, Jared Wageman
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Patent number: 8863940Abstract: A drag conveyor system having a tube and a traction element extending through tube is provided. A plurality of slugs are connected to the traction element, each of the slugs including a slug flange. A disk is removably attached to each of the slugs, with the disk including first and second disk parts that are adapted to be placed around the cable and are engagable with one another and/or the slug so that each of the disks is located on the respective one of the slugs. A snap clip is engaged to each of the slugs, with the snap clip including a flange located on an opposite side of the disk from the slug flange that, together with the slug flange, maintains the first and second disk parts together and engaged with the slug in a fixed position on the slug.Type: GrantFiled: November 22, 2011Date of Patent: October 21, 2014Assignee: Flexicon CorporationInventors: Keith W. Sterner, John F. Simonof, Jr., Korey A. Szapacs, David R. Gill
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Publication number: 20120279829Abstract: A drag conveyor system having a tube and a traction element extending through tube is provided. A plurality of slugs are connected to the traction element, each of the slugs including a slug flange. A disk is removably attached to each of the slugs, with the disk including first and second disk parts that are adapted to be placed around the cable and are engagable with one another and/or the slug so that each of the disks is located on the respective one of the slugs. A snap clip is engaged to each of the slugs, with the snap clip including a flange located on an opposite side of the disk from the slug flange that, together with the slug flange, maintains the first and second disk parts together and engaged with the slug in a fixed position on the slug.Type: ApplicationFiled: November 22, 2011Publication date: November 8, 2012Applicant: FLEXICON CORPORATIONInventors: Keith W. Sterner, John F. Simonof, JR., Korey A. Szapacs, David R. Gill
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Patent number: 7617655Abstract: A tie-off assembly for closing the neck of a bulk bag is provided and includes a motor located in a housing which drives a toothed drive wheel. A slot in the housing receives an end of a tie wrap which, upon insertion, is engaged by the toothed drive wheel to pull the tie wrap closed. At least one blade is mounted adjacent the slot, which is moveable from a first position, away from the slot, to a second, cutting position, adjacent the slot. In use, an end of a tie wrap located around the neck is inserted into the slot so that the tie wrap end is engaged by the toothed drive wheel, and operating the motor tightens the tie wrap about the neck of the bulk bag.Type: GrantFiled: July 5, 2006Date of Patent: November 17, 2009Assignee: Flexicon CorporationInventors: David R. Gill, Keith W. Sterner, David A. Dunker, John F. Simonof, Jr.
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Patent number: 7353851Abstract: A bulk bag filler is provided having a frame assembly, a bag filling head, rotatable hooks for engaging bag loops and latch assemblies to engage the rotatable hooks. Each of the latch assemblies include an actuatable latch pin to release the rotatable hook, and upon release, the latch assemblies are gravity driven to return to a latching position in which the rotatable hooks are re-engageable. A method for loading a bulk bag with a bulk material is also provided.Type: GrantFiled: February 7, 2006Date of Patent: April 8, 2008Assignee: Flexicon CorporationInventors: Keith W. Sterner, David R. Gill, John F. Simonof, Jr.
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Patent number: 7159744Abstract: A flow promotion device (FPD) for use in conjunction with a bulk bag discharger is provided. The FPD includes a center plate pivotably connected to the bulk bag discharger frame. Extension plates are pivotably attached to each end of the center plate. A connecting element is connected between a lever arm on each extension plate and the discharger frame, and an actuator is connected between the center plate and the frame. Upon activation of the actuator, the center plate is moved upwardly, and the extension plates are pivoted upwardly and inwardly by the connecting elements in order to press against the bag from three different directions using a single actuator. Two FPDs are preferably used on the bulk bag discharger.Type: GrantFiled: April 16, 2004Date of Patent: January 9, 2007Assignee: Flexicon CorporationInventors: Keith W. Sterner, David R. Gill, John F. Simonof, Jr.
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Patent number: 7032875Abstract: A bag closing apparatus including a frame structure, a cinching assembly and an actuator assembly. The cinching assembly includes at least three pivot arms, each pivot arm including an arcuate portion and pivotably connected to the frame structure. The pivot arms are located relative to each to define a confined closure area. The actuator assembly includes a plurality of actuators for moving the pivot arms between spread positions and closed positions wherein the closure area has a smaller area.Type: GrantFiled: May 13, 2005Date of Patent: April 25, 2006Assignee: Flexicon CorporationInventors: Keith W. Sterner, Dennis E. Graham, John F. Simonof, Jr., David R. Gill
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Patent number: 7004212Abstract: A bulk bag filler for filling bulk bags having bag hanging loops and a fill spout is provided. The filler includes a bag filling head having at least a moveable portion that can be moved from a filling position, in which the hanging loops are suspended from hanging loop supports in a position to allow the bulk bag to be filled, to a bag attaching position, in which at least some of the hanging loop supports for attachment of a bulk bag to be filled and a bag spout connection are positioned in proximity to a side of the bag filler. A method for loading a bulk bag is also provided.Type: GrantFiled: April 4, 2005Date of Patent: February 28, 2006Assignee: Flexicon CorporationInventors: David R. Gill, Keith W. Sterner, John F. Simonoff, Jr.
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Patent number: 6892510Abstract: A bag closing apparatus including a frame structure, a cinching assembly and an actuator assembly. The cinching assembly includes at least three pivot arms, each pivot arm including an arcuate portion and pivotably connected to the frame structure. The pivot arms are located relative to each to define a confined closure area. The actuator assembly includes a plurality of actuators for moving the pivot arms between spread positions and closed positions wherein the closure area has a smaller area.Type: GrantFiled: January 7, 2003Date of Patent: May 17, 2005Assignee: Flexicon CorporationInventors: Keith W. Sterner, Dennis E. Graham, John F. Simonof, Jr., David R. Gill
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Publication number: 20040206780Abstract: A flow promotion device (FPD) for use in conjunction with a bulk bag discharger is provided. The FPD includes a center plate pivotably connected to the bulk bag discharger frame. Extension plates are pivotably attached to each end of the center plate. A connecting element is connected between a lever arm on each extension plate and the discharger frame, and an actuator is connected between the center plate and the frame. Upon activation of the actuator, the center plate is moved upwardly, and the extension plates are pivoted upwardly and inwardly by the connecting elements in order to press against the bag from three different directions using a single actuator. Two FPDs are preferably used on the bulk bag discharger.Type: ApplicationFiled: April 16, 2004Publication date: October 21, 2004Applicant: Flexicon CorporationInventors: Keith W. Sterner, David R. Gill, John F. Simonof
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Publication number: 20040000122Abstract: A bag closing apparatus including a frame structure, a cinching assembly and an actuator assembly. The cinching assembly includes at least three pivot arms, each pivot arm including an arcuate portion and pivotably connected to the frame structure. The pivot arms are located relative to each to define a confined closure area. The actuator assembly includes a plurality of actuators for moving the pivot arms between spread positions and closed positions wherein the closure area has a smaller area.Type: ApplicationFiled: January 7, 2003Publication date: January 1, 2004Applicant: Flexicon CorporationInventors: Keith W. Sterner, Dennis E. Graham, John F. Simonof, David R. Gill
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Publication number: 20030006248Abstract: An apparatus and system for removing material from a bulk bag with reduced atmospheric contamination. The invention provides for engaging the bulk bag in a substantially airtight arrange with a reservoir that receives the material being unloaded and airflow discharge system that filters the airflow prior to it entering the surrounding atmosphere. The apparatus is specifically intended for removing residual material from the bulk bag and collapsing the bag through vacuum pressure. This simplifies bag removal and folding while reducing atmospheric contamination from uncontrolled residual material.Type: ApplicationFiled: May 9, 2002Publication date: January 9, 2003Applicant: Flexicon CorporationInventors: David R. Gill, Keith W. Sterner, John F. Simonof
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Patent number: 6502367Abstract: A bag closing apparatus including a frame structure, a cinching assembly and an actuator assembly. The cinching assembly includes at least three pivot arms, each pivot arm including an arcuate portion and pivotably connected to the frame structure. The pivot arms are located relative to each to define a confined closure area. The actuator assembly includes a plurality of actuators for moving the pivot arms between spread positions and closed positions wherein the closure area has a smaller area.Type: GrantFiled: April 26, 2000Date of Patent: January 7, 2003Assignee: Flexicon CorporationInventors: Keith W. Sterner, Dennis E. Graham, John F. Simonof, Jr., David R. Gill
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Patent number: 6427955Abstract: Bulk bag loop retainers used in conjunction with bulk bag lifting frames. Each retainer includes opposed retainer plates secured to the lifting frame. The plates are shaped and dimensioned and aligned relative to one another to define a non-linear passage into a retainment area which receives and retains the bag loop.Type: GrantFiled: April 7, 2000Date of Patent: August 6, 2002Assignee: Flexicon CorporationInventors: Keith Sterner, John F. Simonof, Jr., David R. Gill
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Patent number: 6340100Abstract: A bulk bag unloading station wherein a bulk bag is suspended above a discharge receptacle. An assembly is provided for securing a spout extending from the bag to a discharge tube. The assembly comprises a clamp ring which defines a channel configured to receive the free edge of the tube therein. An actuator assembly is moveable between a first position where the clamp ring is spaced from the free edge and a second position where it overlies the tube free edge.Type: GrantFiled: June 7, 2000Date of Patent: January 22, 2002Assignee: Flexicon CorporationInventors: David R. Gill, Dennis E. Graham, John F. Simonof, Jr.