Patents Assigned to Guntert & Zimmerman Const. Div., Inc.
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Patent number: 9908571Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.Type: GrantFiled: June 14, 2017Date of Patent: March 6, 2018Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, Jr., Gerald L. Dahlinger, Richard Wood Francis
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Publication number: 20170282983Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.Type: ApplicationFiled: June 14, 2017Publication date: October 5, 2017Applicant: GUNTERT & ZIMMERMAN CONST. DIV., INC.Inventors: Ronald M. Guntert, Jr., Gerald L. Dahlinger, Richard Wood Francis, Randy Smith
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Patent number: 9708020Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.Type: GrantFiled: May 6, 2016Date of Patent: July 18, 2017Assignee: GUNTERT & ZIMMERMAN CONST. DIV., INC.Inventors: Ronald Guntert, Jr., Gerald L. Dahlinger, Richard Wood Francis
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Publication number: 20160251042Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.Type: ApplicationFiled: May 6, 2016Publication date: September 1, 2016Applicant: GUNTERT & ZIMMERMAN CONST. DIV., INC.Inventors: Ronald Guntert, JR., Gerald L. Dahlinger, Richard Wood Francis
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Patent number: 9359727Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.Type: GrantFiled: May 17, 2013Date of Patent: June 7, 2016Assignee: GUNTERT & ZIMMERMAN CONST. DIV., INC.Inventors: Ronald M. Guntert, Jr., Gerald L. Dahlinger, Richard Wood Francis
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Patent number: 9039322Abstract: A paver for laying down a strip of concrete and inserting therein dowel bars parallel to the strip. A dowel bar inserter orients the bars and places them into the concrete. A pair of transport chains transverse to the travel direction extends across a width of the inserter. Pairs of generally L-shaped opposing cups hold the bars so that they can drop downwardly from the cups towards the strip. The chains move in a single direction. A dowel bar holding magazine, above the chains, stores bars, and gravitationally moves the bars towards the chains for pick-up by cups as the chains move the cups past a bar loading station. Elastic bands extend about a bar engaging surface defined by a wheel and resiliently bias the bars moving along the chain turn-around section against the wheel.Type: GrantFiled: February 5, 2013Date of Patent: May 26, 2015Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Richard W. Francis, Mark E. Storz, Daniel L. Blount
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Publication number: 20140161528Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.Type: ApplicationFiled: May 17, 2013Publication date: June 12, 2014Applicant: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, JR., Gerald L. Dahlinger, Richard Wood Francis
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Publication number: 20140023437Abstract: A paver for laying down a strip of concrete and inserting therein dowel bars parallel to the strip. A dowel bar inserter orients the bars and places them into the concrete. A pair of transport chains transverse to the travel direction extends across a width of the inserter. Pairs of generally L-shaped opposing cups hold the bars so that they can drop downwardly from the cups towards the strip. The chains move in a single direction. A dowel bar holding magazine, above the chains, stores bars, and gravitationally moves the bars towards the chains for pick-up by cups as the chains move the cups past a bar loading station. Elastic bands extend about a bar engaging surface defined by a wheel and resiliently bias the bars moving along the chain turn-around section against the wheel.Type: ApplicationFiled: February 5, 2013Publication date: January 23, 2014Applicant: Guntert & Zimmerman Const. Div., Inc.Inventor: Guntert & Zimmerman Const. Div., Inc.
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Patent number: 8459898Abstract: A paving machine for spreading, leveling and finishing concrete having a main frame, center module, bolsters laterally movably, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column. A worm gear drive permits rotational movements of the crawler track and the jacking column. A hinge bracket is interposed between each swing leg and a surface of the bolsters to enable pivotal movements of the swing leg. A length-adjustable holder engages the pivot pin on the hinge bracket and pivotally engages the swing leg. The holder permits pivotal motions of the swing leg in its length-adjustable configuration and prevents substantially any motion of the swing leg in its fixed-length configuration. A feedback loop cooperates with transducers keeping the crawler tracks position. The paving machine can be reconfigured into a narrowed transport configuration.Type: GrantFiled: March 22, 2011Date of Patent: June 11, 2013Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, Jr., Gerald L. Dahlinger, Richard Wood Francis
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Patent number: 8382396Abstract: A slipform paver including a dowel bar inserter unit having a pair of spaced-apart, endless transport chains oriented transversely to the travel direction. Each chain defines upper and lower strands with turn around chain sections at respective ends of the chain strands. A plurality of pairs of generally L-shaped opposing cups carried by exterior sides of the chain hold the dowel bars so that they can drop downwardly from the cups towards the concrete strip. A dowel bar holding magazine is located above the upwardly facing sides of the chains. Elastic bands having ends fixedly attached to the magazine extend generally about a portion of a convexly curved dowel bar engaging surface defined by a wheel and resiliency bias the dowel bars moving along the chain turn-around section against the wheel.Type: GrantFiled: September 9, 2009Date of Patent: February 26, 2013Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Richard W. Francis, Mark E. Storz, Daniel L. Blount
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Patent number: 8118518Abstract: A paving machine that moves in a travel direction and spreads, levels and finishes concrete into a form having a generally upwardly exposed, finished concrete surface that terminates in lateral sides. The paving machine has a main frame with first and second bolsters arranged at opposite ends of the main frame. Each set of bolsters has two hydraulic jacking columns used to raise and lower the machine frame. Crawlers attached to the bottom of the jacking columns engage the ground and move the paving machine in the travel direction. A pair of support beams is attached to the inner surface of each bolster and supported in passageways of a center module of the tractor frame. To extend the maximum width of the paving machine without having to extensively disassemble it, the free ends of the support beams extend beyond outer sides of the bolsters when the distance between the inner sides of the bolsters is at its minimum.Type: GrantFiled: February 9, 2010Date of Patent: February 21, 2012Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, Jr., Gerald L. Dahlinger, Iovtcho Mitev Delev, Steven Douglas Mickelson
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Publication number: 20110236129Abstract: A paving machine which is configured to move in a paving direction for spreading, leveling and finishing concrete into a form having a generally upwardly exposed, finished concrete surface and terminating in lateral concrete sides. The paving machine has a main frame, including a center module, bolsters laterally movably connected to respective lateral sides of the center module for changing a spacing between the bolsters, and a crawler track associated with respective aft and forward ends of the bolsters. A bolster swing leg for each crawler track supports an upright jacking column secured to the swing leg proximate a free end thereof. A worm gear drive between the jacking column and the crawler track permits rotational movements of the crawler track and the jacking column about an upright axis.Type: ApplicationFiled: March 22, 2011Publication date: September 29, 2011Applicant: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, JR., Gerald L. Dahlinger, Richard Wood Francis
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Publication number: 20110194898Abstract: A paving machine that moves in a travel direction and spreads, levels and finishes concrete into a form having a generally upwardly exposed, finished concrete surface that terminates in lateral sides. The paving machine has a main frame with first and second bolsters arranged at opposite ends of the main frame. Each set of bolsters has two hydraulic jacking columns used to raise and lower the machine frame. Crawlers attached to the bottom of the jacking columns engage the ground and move the paving machine in the travel direction. A pair of support beams is attached to the inner surface of each bolster and supported in passageways of a center module of the tractor frame. To extend the maximum width of the paving machine without having to extensively disassemble it, the free ends of the support beams extend beyond outer sides of the bolsters when the distance between the inner sides of the bolsters is at its minimum.Type: ApplicationFiled: February 9, 2010Publication date: August 11, 2011Applicant: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, JR., Gerald L. Dahlinger, Iovtcho Mitev Delev, Steven Douglas Mickelson
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Patent number: 7950874Abstract: A concrete paving machine which has a main frame and two hydraulic jacking columns at each end of the frame for raising and lowering the machine frame. Crawlers attached to the jacking columns move the paving machine in the travel direction. A paving kit is secured to the main frame and has a rigid center portion. Each terminal kit has an end frame secured to the center portion, an adjustable length support structure between the end frame and the slipform, and a hydraulic actuator. Spacers are interposed between the end frame and the slipform. A finishing pan is provided to finish the concrete surface. All replaceable components of the terminal are constructed and arranged so that they can be manually exchanged be one or two persons without removing the paving kit from the main frame and without needing the help of lifting equipment.Type: GrantFiled: April 16, 2009Date of Patent: May 31, 2011Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, Jr., Richard W. Francis
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Publication number: 20110058899Abstract: A slipform paver for laying down a strip of concrete over a ground surface and for intermittently inserting into the strip spaced-apart dowel bars that are oriented substantially parallel to the length of the strip that is being laid down. The paver has a dowel bar inserter unit that orients the dowel bars substantially parallel to the travel direction of the paver and places the dowel bars into the concrete as the strip is being laid down. The inserter has a pair of spaced-apart, endless transport chains oriented transversely to the travel direction that substantially extends across a width of the inserter unit. Each chain defines upper and lower strands with turn-around chain sections at respective ends of the chain strands. A plurality of pairs of generally L-shaped opposing cups carried by exterior sides of the chain hold the dowel bars so that they can drop downwardly from the cups towards the concrete strip when the pair of cups holding the dowel bar are on the exterior chain side that faces downwardly.Type: ApplicationFiled: September 9, 2009Publication date: March 10, 2011Applicant: Guntert & Zimmerman Const. Div., Inc.Inventors: Richard W. Francis, Mark E. Storz, Daniel L. Blount
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Publication number: 20100266339Abstract: A paving machine that moves in a travel direction spreads, levels and finishes concrete into a form having a generally upwardly exposed, finished concrete surface that terminates in lateral sides. The paving machine has a main frame with first and second bolsters arranged at opposite ends of the main frame. Each set of bolsters has two hydraulic jacking columns used to raise and lower the machine frame. Crawlers attached to the bottom of the jacking columns engage the ground and move the paving machine in the travel direction. A paving kit is secured to the machine frame and has a substantially rigid center portion oriented transverse to the travel direction. It terminates in lateral ends and is disposed between the bolsters. A variable length terminal paving kit is secured to each lateral end of the center portion.Type: ApplicationFiled: April 16, 2009Publication date: October 21, 2010Applicant: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, JR., Richard W. Francis
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Publication number: 20100129151Abstract: In combination with a placers/spreader having a frame including at least two side bolsters standing parallel to the subgrade path and at least two cross beams spanning the subgrade path forming a conveyor supporting structure. A rail system is attached spanning the frame, and has a roll in/roll out conveyor with a cantilevered support at one of the side bolsters and a support for attachment to and support from the rail system. The conveyor moves in traversing motion across the frame to distribute concrete. The improvement comprises a strike off beam and spreader plow assembly for trailing attachment to the frame of a placer/spreader. We thus disclose a strike off beam with spreader plow assembly which can be removably attached to either side of a placer/spreader to avoid the necessity of relocating the receiving conveyor when the location of the access road changes from one side to the other or direction of spreading changes.Type: ApplicationFiled: October 1, 2008Publication date: May 27, 2010Applicant: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, JR., Rick Francis
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Patent number: 7458748Abstract: In combination with a placers/spreader having a frame including at least two side bolsters standing parallel to the subgrade path and at least two cross beams spanning the subgrade path forming a conveyor supporting structure. A rail system is attached spanning the frame, and has a roll in/roll out conveyor with a cantilevered support at one of the side bolsters and a support for attachment to and support from the rail system. The conveyor moves in traversing motion across the frame to distribute concrete. The improvement comprises a strike off beam and spreader plow assembly for trailing attachment to the frame of a placer/spreader. We thus disclose a strike off beam with spreader plow assembly which can be removably attached to either side of a placer/spreader to avoid the necessity of relocating the receiving conveyor when the location of the access road changes from one side to the other or direction of spreading changes.Type: GrantFiled: October 19, 2007Date of Patent: December 2, 2008Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, Jr., Rick Francis
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Publication number: 20080044226Abstract: In combination with a placers/spreader having a frame including at least two side bolsters standing parallel to the subgrade path and at least two cross beams spanning the subgrade path forming a conveyor supporting structure. A rail system is attached spanning the frame, and has a roll in/roll out conveyor with a cantilevered support at one of the side bolsters and a support for attachment to and support from the rail system. The conveyor moves in traversing motion across the frame to distribute concrete. The improvement comprises a strike off beam and spreader plow assembly for trailing attachment to the frame of a placer/spreader. We thus disclose a strike off beam with spreader plow assembly which can be removably attached to either side of a placer/spreader to avoid the necessity of relocating the receiving conveyor when the location of the access road changes from one side to the other or direction of spreading changes.Type: ApplicationFiled: October 19, 2007Publication date: February 21, 2008Applicant: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald Guntert, Rick Francis
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Patent number: 7316522Abstract: A placer/spreader for distributing already mixed concrete from an access road to a subgrade path to be paved includes a frame having at least two side bolsters standing parallel to the subgrade path and at least two cross beams spanning the subgrade path for forming a conveyor supporting structure. A roll in/roll out conveyor has a receiving end for receiving already mixed concrete from an access road and a discharge end for discharging already mixed concrete to the subgrade path, this conveyor being hinged to enable conformation to differing access road elevations. One of the two side bolsters defines forward and rear transport attachment points with a spatial interval between the transport attachment points. This spatial interval permits the roll in/roll out conveyor to be supported between forward and rear attachment points.Type: GrantFiled: March 10, 2005Date of Patent: January 8, 2008Assignee: Guntert & Zimmerman Const. Div., Inc.Inventors: Ronald M. Guntert, Jr., Rick Francis