Patents by Inventor Lester James Thiessen
Lester James Thiessen 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: 10773880Abstract: A heating assembly for heating a liquid storage tank includes a heat exchanger tank supported in one wall of the storage tank to extend into the storage tank in contact with liquid stored therein. The heat exchanger tank contains a heat exchanger fluid therein which is heated by a burner tube extending through the heat exchanger tank whereby heat is only transferred to the liquid in the storage tank through the heat exchanger fluid. A controller actuates the burner head of the burner tube to maintain temperature of the heat exchanger fluid between upper and lower temperature limits. The operation of the burner head is interrupted in response to temperature of the liquid in the storage tank exceeding an upper limit, or fluid level in the heat exchanger tank being below a lower limit as determined by respective sensors.Type: GrantFiled: February 12, 2014Date of Patent: September 15, 2020Assignee: Viro Rentals, Inc.Inventor: Lester James Thiessen
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Publication number: 20180058184Abstract: A dual tank structure includes first and second tanks with a common secondary containment structure which are all integrally supported on a common base frame. The common base frame includes longitudinal skids so as to be suitable for transport using a conventional winch truck. A passageway with an integral valve therein permits selective communication between the tanks. The common containment structure has a containment volume which is greater than a storage volume of a largest one of the first tank and the second tank and which is less than a combined storage volume of both the first tank and the second tank.Type: ApplicationFiled: June 6, 2017Publication date: March 1, 2018Inventor: Lester James Thiessen
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Patent number: 9832933Abstract: A grain bin aeration system has inlet ducting in communication with the hollow interior of the storage bin adjacent a perimeter of the storage bin and exhaust ducting in communication with the hollow interior of the storage bin at a central location within the storage bin. A first portion of the inlet ducting is directed to the top end of the bin so that aeration flow therethrough is directed downwardly through the material in the storage bin to the exhaust ducting. A second portion of the inlet ducting is directed to the bottom end of the bin so that aeration flow therethrough is directed upwardly through the material in the storage bin to the exhaust ducting.Type: GrantFiled: June 16, 2014Date of Patent: December 5, 2017Inventor: Lester James Thiessen
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Patent number: 9731893Abstract: In an oil storage tank having an interior oil storage chamber and a tank opening in one of the boundary walls, a heating assembly is supported to extend into the interior oil storage chamber from the tank opening. The assembly includes a casing of walls surrounding with a casing mounting flange mountable in sealing engagement relative to a tank mounting flange about the full perimeter of the tank opening such that the casing protrudes into the interior oil storage chamber of the oil storage tank. The heating chamber is suitable sized and configured to operably receive a catalytic heater therein. The heating chamber further accommodates entry of combustion air and combustion fuel into the heating chamber and exhaust of emissions therefrom.Type: GrantFiled: April 17, 2015Date of Patent: August 15, 2017Assignee: ENVIRO PRODUCTION SYSTEMS INC.Inventor: Lester James Thiessen
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Patent number: 9689248Abstract: A dual tank structure includes first and second tanks with a common secondary containment structure which are all integrally supported on a common base frame. The common base frame includes longitudinal skids so as to be suitable for transport using a conventional winch truck. A passageway with an integral valve therein permits selective communication between the tanks. The common containment structure has a containment volume which is greater than a storage volume of a largest one of the first tank and the second tank and which is less than a combined storage volume of both the first tank and the second tank.Type: GrantFiled: September 9, 2013Date of Patent: June 27, 2017Assignee: BDC CAPITAL INC.Inventor: Lester James Thiessen
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Publication number: 20170081836Abstract: A hopper support cone for a grain bin includes a perimeter footing support, upstanding support legs mounted on the footing support, and an inverted cone shaped hopper wall carried by the support legs in a suspended position above a support surface. The hopper support cone features top and bottom junctions respectively located at top and bottom ends of support legs and respectively joining each support leg to each of the hopper wall and the footing support. Each of the top and bottom junctions comprise upper and lower bracing members forming gusset-like structures which provide rigidity for the hopper support cone while leaving a continuous portion of the length of each support leg uninterrupted between the top and bottom junctions and a continuous portion of the hopper wall uninterrupted from the central opening thereof towards the peripheral edge. Thus, access to the continuous portion of the hopper wall is unobstructed.Type: ApplicationFiled: May 17, 2016Publication date: March 23, 2017Inventor: Lester James Thiessen
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Publication number: 20160376096Abstract: A hopper bottom for a grain bin includes a hopper wall having an inverted cone shape so as to taper downwardly and inwardly towards a central bottom opening and including ventilation openings therein. Perforated ducts extend into the grain bin from the ventilation openings. According to one embodiment upright support legs support the hopper wall above the foundation. Each upright support leg has a hollow interior chamber to direct air from an inlet manifold structure to the ventilation openings in the hopper wall. According to another embodiment, an outer support wall supports the hopper wall above a floor structure which collectively enclose a manifold space which directs air from a blower into the ventilation openings in the hopper wall.Type: ApplicationFiled: September 12, 2016Publication date: December 29, 2016Inventor: Lester James Thiessen
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Patent number: 9469473Abstract: A hopper bottom for a grain bin includes a hopper wall having an inverted cone shape so as to taper downwardly and inwardly towards a central bottom opening and including ventilation openings therein. Perforated ducts extend into the grain bin from the ventilation openings. According to one embodiment upright support legs support the hopper wall above the foundation. Each upright support leg has a hollow interior chamber to direct air from an inlet manifold structure to the ventilation openings in the hopper wall. According to another embodiment, an outer support wall supports the hopper wall above a floor structure which collectively enclose a manifold space which directs air from a blower into the ventilation openings in the hopper wall.Type: GrantFiled: October 5, 2012Date of Patent: October 18, 2016Assignee: ENVIRO PRODUCTION SYSTEMS INC.Inventor: Lester James Thiessen
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Publication number: 20150298900Abstract: In an oil storage tank having an interior oil storage chamber and a tank opening in one of the boundary walls, a heating assembly is supported to extend into the interior oil storage chamber from the tank opening. The assembly includes a casing of walls surrounding with a casing mounting flange mountable in sealing engagement relative to a tank mounting flange about the full perimeter of the tank opening such that the casing protrudes into the interior oil storage chamber of the oil storage tank. The heating chamber is suitable sized and configured to operably receive a catalytic heater therein. The heating chamber further accommodates entry of combustion air and combustion fuel into the heating chamber and exhaust of emissions therefrom.Type: ApplicationFiled: April 17, 2015Publication date: October 22, 2015Inventor: Lester James Thiessen
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Publication number: 20140378044Abstract: A grain bin aeration system has inlet ducting in communication with the hollow interior of the storage bin adjacent a perimeter of the storage bin and exhaust ducting in communication with the hollow interior of the storage bin at a central location within the storage bin. A first portion of the inlet ducting is directed to the top end of the bin so that aeration flow therethrough is directed downwardly through the material in the storage bin to the exhaust ducting. A second portion of the inlet ducting is directed to the bottom end of the bin so that aeration flow therethrough is directed upwardly through the material in the storage bin to the exhaust ducting.Type: ApplicationFiled: June 16, 2014Publication date: December 25, 2014Inventor: Lester James Thiessen
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Publication number: 20140245972Abstract: A heating assembly for heating a liquid storage tank includes a heat exchanger tank supported in one wall of the storage tank to extend into the storage tank in contact with liquid stored therein. The heat exchanger tank contains a heat exchanger fluid therein which is heated by a heating apparatus extending through the heat exchanger tank whereby heat is only transferred to the liquid in the storage tank through the heat exchanger fluid. The heating apparatus extending through the heat exchanger tank may be a burner tube or an electrical resistance-type heating element according to different embodiments of the invention.Type: ApplicationFiled: April 17, 2014Publication date: September 4, 2014Inventor: Lester James Thiessen
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Publication number: 20140224191Abstract: A heating assembly for heating a liquid storage tank includes a heat exchanger tank supported in one wall of the storage tank to extend into the storage tank in contact with liquid stored therein. The heat exchanger tank contains a heat exchanger fluid therein which is heated by a burner tube extending through the heat exchanger tank whereby heat is only transferred to the liquid in the storage tank through the heat exchanger fluid. A controller actuates the burner head of the burner tube to maintain temperature of the heat exchanger fluid between upper and lower temperature limits. The operation of the burner head is interrupted in response to temperature of the liquid in the storage tank exceeding an upper limit, or fluid level in the heat exchanger tank being below a lower limit as determined by respective sensors.Type: ApplicationFiled: February 12, 2014Publication date: August 14, 2014Inventor: Lester James Thiessen
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Publication number: 20140096832Abstract: A dual tank structure includes first and second tanks with a common secondary containment structure which are all integrally supported on a common base frame. The common base frame includes longitudinal skids so as to be suitable for transport using a conventional winch truck. A passageway with an integral valve therein permits selective communication between the tanks. The common containment structure has a containment volume which is greater than a storage volume of a largest one of the first tank and the second tank and which is less than a combined storage volume of both the first tank and the second tank.Type: ApplicationFiled: September 9, 2013Publication date: April 10, 2014Inventor: Lester James Thiessen
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Patent number: 8656655Abstract: A modular containment wall system provides secondary containment about one or more liquid storage tanks in a storage area using panel members connected with series to form a perimeter wall about the storage area together with a barrier member spanning the area surrounding by the perimeter wall. Each panel member has a main wall portion and a brace including a triangular gusset panel and a foot panel along a bottom side in which the gusset panel and foot panel of the brace are pivotal together relative to the main wall portion between a working position in which the gusset panel is substantially perpendicular to the main wall portion and a storage position in which the gusset panel is substantially parallel to the main wall portion.Type: GrantFiled: March 8, 2012Date of Patent: February 25, 2014Inventor: Lester James Thiessen
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Publication number: 20140048534Abstract: A dual tank structure includes first and second tanks with a common secondary containment structure which are all integrally supported on a common base frame. The common base frame includes longitudinal skids so as to be suitable for transport using a conventional winch truck. A passageway with an integral valve therein permits selective communication between the tanks. The common containment structure has a containment volume which is greater than a storage volume of a largest one of the first tank and the second tank and which is less than a combined storage volume of both the first tank and the second tank.Type: ApplicationFiled: October 5, 2012Publication date: February 20, 2014Inventor: Lester James Thiessen
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Patent number: 8651791Abstract: A door assembly for an agricultural storage bin includes an exterior chute communicating with a lower portion of a bin door opening. The exterior chute extends outwardly at an upward inclination from a bottom edge of the door opening to an open top end spaced below a top end of the door opening. An inner door panel hinged at an inner side of the bin wall spans an upper portion of the door opening above the exterior chute when closed. A cover member spans an open top end of the exterior chute when closed. An unloading auger can be readily inserted through the external chute below the inner door panel for unloading the bin by removing the cover member. The inner door can be subsequently opened inwardly when the level in the bin falls below the upper portion of the bin door opening.Type: GrantFiled: December 21, 2010Date of Patent: February 18, 2014Inventor: Lester James Thiessen
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Patent number: 8584905Abstract: A hopper bottom for a cylindrical grain bin includes a floor structure, an outer cylindrical wall extending up from the floor and upon which the bin is supported, and an inner wall having an inverted cone shape which tapers downwardly and inwardly to join the floor structure about a central area. A pair of spaced apart upright auger chute walls extend radially outward from the central area to an access opening in the outer wall to receive an auger for unloading. Screens are flush mounted in the inner wall such that ventilation air directed into a manifold space between the inner and outer walls is forced up through the screens into the grain bin. The floor structure includes a floor sheet, a perimeter member about the outer wall, and radial supports extending between the central area and the perimeter members.Type: GrantFiled: April 7, 2010Date of Patent: November 19, 2013Inventor: Lester James Thiessen
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Publication number: 20130295833Abstract: A hopper bottom for a grain bin includes a hopper wall having an inverted cone shape so as to taper downwardly and inwardly towards a central bottom opening and including ventilation openings therein. Perforated ducts extend into the grain bin from the ventilation openings. According to one embodiment upright support legs support the hopper wall above the foundation. Each upright support leg has a hollow interior chamber to direct air from an inlet manifold structure to the ventilation openings in the hopper wall. According to another embodiment, an outer support wall supports the hopper wall above a floor structure which collectively enclose a manifold space which directs air from a blower into the ventilation openings in the hopper wall.Type: ApplicationFiled: October 5, 2012Publication date: November 7, 2013Inventor: Lester James Thiessen
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Publication number: 20130233851Abstract: A modular containment wall system provides secondary containment about one or more liquid storage tanks in a storage area using panel members connected with series to form a perimeter wall about the storage area together with a barrier member spanning the area surrounding by the perimeter wall. Each panel member has a main wall portion and a brace including a triangular gusset panel and a foot panel along a bottom side in which the gusset panel and foot panel of the brace are pivotal together relative to the main wall portion between a working position in which the gusset panel is substantially perpendicular to the main wall portion and a storage position in which the gusset panel is substantially parallel to the main wall portion.Type: ApplicationFiled: March 8, 2012Publication date: September 12, 2013Inventor: Lester James Thiessen
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Publication number: 20110280704Abstract: A door assembly for an agricultural storage bin includes an exterior chute communicating with a lower portion of a bin door opening. The exterior chute extends outwardly at an upward inclination from a bottom edge of the door opening to an open top end spaced below a top end of the door opening. An inner door panel hinged at an inner side of the bin wall spans an upper portion of the door opening above the exterior chute when closed. A cover member spans an open top end of the exterior chute when closed. An unloading auger can be readily inserted through the external chute below the inner door panel for unloading the bin by removing the cover member. The inner door can be subsequently opened inwardly when the level in the bin falls below the upper portion of the bin door opening.Type: ApplicationFiled: December 21, 2010Publication date: November 17, 2011Inventor: Lester James Thiessen