Patents by Inventor Roger Bowden
Roger Bowden 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: 11007838Abstract: A base unit for a lifting vehicle includes a chassis having a chassis plane and a plurality of wheels, each of the wheels being mounted on the chassis by a suspension mechanism having a suspension element and a suspension actuator that controls the position of the suspension element relative to the chassis. The suspension element is arranged to pivot relative to the chassis about an inclined pivot axis in response to actuation of the suspension actuator.Type: GrantFiled: March 5, 2018Date of Patent: May 18, 2021Assignee: NIFTYLIFT LIMITEDInventor: Roger Bowden
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Publication number: 20200101809Abstract: A base unit for a lifting vehicle includes a chassis having a chassis plane and a plurality of wheels, each of the wheels being mounted on the chassis by a suspension mechanism having a suspension element and a suspension actuator that controls the position of the suspension element relative to the chassis. The suspension element is arranged to pivot relative to the chassis about an inclined pivot axis in response to actuation of the suspension actuator.Type: ApplicationFiled: March 5, 2018Publication date: April 2, 2020Inventor: Roger BOWDEN
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Patent number: 10131195Abstract: A base unit for a vehicle such as a mobile work platform includes a chassis and multiple wheels, at least one of the wheels being mounted on the chassis by a suspension mechanism including a suspension element. The suspension element pivots relative to the chassis about a substantially horizontal pivot axis between an upper position and a lower position, and a stop member engages the suspension element in the upper position to limit its upwards movement. A biasing mechanism exerts a biasing force on the suspension element to urge the suspension element upwards towards the upper position.Type: GrantFiled: October 9, 2013Date of Patent: November 20, 2018Assignee: NIFTYLIFT LIMITEDInventor: Roger Bowden
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Patent number: 9249002Abstract: A lift platform includes a base unit (4), a lifting mechanism (8) and an operator cage (14) attached to the lifting mechanism, a set of wheels (16) and a set of static support elements (18). The base unit (4) is constructed and arranged for conversion between a static configuration in which it is supported by the static support elements (18) and a mobile configuration in which it is supported by the wheels (16).Type: GrantFiled: February 4, 2011Date of Patent: February 2, 2016Assignee: NIFTYLIFT LIMITEDInventor: Roger Bowden
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Patent number: 9249004Abstract: A load monitoring system for a mobile work platform including a load cell having at least one strain gauge and a sensing circuit connected to receive a strain signal from the strain gauge. The sensing circuit includes a first sensing device for sensing the strain in the strain gauge, and a second sensing device for sensing a negative shift in the strain signal.Type: GrantFiled: May 14, 2013Date of Patent: February 2, 2016Assignee: NIFTYLIFT LIMITEDInventor: Frank Roger Bowden
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Publication number: 20150239318Abstract: A base unit for a vehicle such as a mobile work platform includes a chassis and multiple wheels, at least one of the wheels being mounted on the chassis by a suspension mechanism including a suspension element. The suspension element pivots relative to the chassis about a substantially horizontal pivot axis between an upper position and a lower position, and a stop member engages the suspension element in the upper position to limit its upwards movement. A biasing mechanism exerts a biasing force on the suspension element to urge the suspension element upwards towards the upper position.Type: ApplicationFiled: October 9, 2013Publication date: August 27, 2015Applicant: Niftylift LimitedInventor: Roger Bowden
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Patent number: 8813909Abstract: A control system for a machine having an elevating operator cage, includes a control device (102), an input for activation signals (106), an input for control signals (108), an input for load signals (112) and an output for drive control signals (114), wherein the control device (102) is constructed and arranged to issue a stop drive control signal upon receiving a load signal, and to issue an override signal that overrides the stop drive control signal upon receiving an override input signal.Type: GrantFiled: August 3, 2010Date of Patent: August 26, 2014Assignee: NiftyLift LimitedInventor: Roger Bowden
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Patent number: 8813910Abstract: An operator cage (6) for a machine such as a mobile elevating work platform comprises a base unit (22) and a fence assembly (25), a control console (32) and a load sensor (46) that is constructed and arranged to sense an external load applied to the console. The console (32) is mounted for pivoting movement and the load sensor (46) is constructed and arranged to detect movement of the console from an unloaded condition to a loaded condition.Type: GrantFiled: August 3, 2010Date of Patent: August 26, 2014Assignee: NiftyLift LimitedInventor: Roger Bowden
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Patent number: 8651236Abstract: An operator cage for a machine such as a mobile elevating work platform comprises a base unit (22) and a fence assembly (25) releasably attached to the base unit, wherein the cage (6) is constructed and arranged to be readily disassembled for convenient transportation.Type: GrantFiled: September 16, 2008Date of Patent: February 18, 2014Assignee: Niftylift LimitedInventor: Frank Roger Bowden
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Patent number: 8584800Abstract: A load monitoring system (14) is provided for a mobile work platform that includes an operator platform (6), a base (2) and a lift mechanism (5) for lifting the operator platform relative to the base. The load monitoring system includes a load cell (12) for monitoring the load on the operator platform (6) and a control device (16) for controlling operation of the work platform, wherein the control device (16) is constructed and arranged to sense and monitor both static and dynamic loads on the operator platform.Type: GrantFiled: September 8, 2009Date of Patent: November 19, 2013Assignee: NiftyLift LimitedInventor: Frank Roger Bowden
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Publication number: 20130253776Abstract: A load monitoring system for a mobile work platform including a load cell having at least one strain gauge and a sensing circuit connected to receive a strain signal from the strain gauge. The sensing circuit includes a first sensing device for sensing the strain in the strain gauge, and a second sensing device for sensing a negative shift in the strain signal.Type: ApplicationFiled: May 14, 2013Publication date: September 26, 2013Applicant: Niftylift LimitedInventor: Frank Roger Bowden
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Publication number: 20130087410Abstract: A lift platform includes a base unit (4), a lifting mechanism (8) and an operator cage (14) attached to the lifting mechanism, a set of wheels (16) and a set of static support elements (18). The base unit (4) is constructed and arranged for conversion between a static configuration in which it is supported by the static support elements (18) and a mobile configuration in which it is supported by the wheels (16).Type: ApplicationFiled: February 4, 2011Publication date: April 11, 2013Applicant: NIFTYLIFT LIMITEDInventor: Roger Bowden
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Publication number: 20120160604Abstract: A control system for a machine having an elevating operator cage, includes a control device (102), an input for activation signals (106), an input for control signals (108), an input for load signals (112) and an output for drive control signals (114), wherein the control device (102) is constructed and arranged to issue a stop drive control signal upon receiving a load signal, and to issue an override signal that overrides the stop drive control signal upon receiving an override input signal.Type: ApplicationFiled: August 3, 2010Publication date: June 28, 2012Inventor: Roger Bowden
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Publication number: 20120152653Abstract: An operator cage (6) for a machine such as a mobile elevating work platform comprises a base unit (22) and a fence assembly (25), a control console (32) and a load sensor (46) that is constructed and arranged to sense an external load applied to the console. The console (32) is mounted for pivoting movement and the load sensor (46) is constructed and arranged to detect movement of the console from an unloaded condition to a loaded condition.Type: ApplicationFiled: August 3, 2010Publication date: June 21, 2012Inventor: Roger Bowden
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Publication number: 20110209943Abstract: A load monitoring system (14) is provided for a mobile work platform that includes an operator platform (6), a base (2) and a lift mechanism (5) for lifting the operator platform relative to the base. The load monitoring system includes a load cell (12) for monitoring the load on the operator platform (6) and a control device (16) for controlling operation of the work platform, wherein the control device (16) is constructed and arranged to sense and monitor both static and dynamic loads on the operator platform.Type: ApplicationFiled: September 8, 2009Publication date: September 1, 2011Applicant: NIFTYLIFT LIMITEDInventor: Frank Roger Bowden
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Publication number: 20100200332Abstract: An operator cage for a machine such as a mobile elevating work platform comprises a base unit (22) and a fence assembly (25) releasably attached to the base unit, wherein the cage (6) is constructed and arranged to be readily disassembled for convenient transportation.Type: ApplicationFiled: September 16, 2008Publication date: August 12, 2010Applicant: NIFTYLIFT LIMITEDInventor: Frank Roger Bowden
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Publication number: 20100181143Abstract: A load monitoring system for a mobile work platform includes a load cell (12) having at least one strain gauge (16) and a sensing circuit (14) connected to receive a strain signal from the strain gauge. The sensing circuit (14) includes a first sensing device (24) for sensing the strain in the strain gauge (16), and a second sensing device (26) for sensing a negative shift in the strain signal.Type: ApplicationFiled: June 20, 2008Publication date: July 22, 2010Inventor: Frank Roger Bowden
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Publication number: 20100068071Abstract: A mobile work platform includes an operator platform (6), a base (2) and a lift mechanism (4) for lifting the operator platform relative to the base. A hydraulic drive system for the mobile work platform includes an internal combustion engine (14), an electric motor (24) and a hydraulic pump (26). The internal combustion engine (14) and the electric motor (24) are constructed and arranged so as to be capable of driving the hydraulic pump (26) either separately or together.Type: ApplicationFiled: March 6, 2008Publication date: March 18, 2010Inventor: Frank Roger Bowden
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Patent number: 6264221Abstract: A base structure for a mobile access platform includes a chassis (10) having at least two pairs of wheels (12, 16a, 16b), at least a first one of the pairs of wheels (16a, 16b) including a suspension mechanism including, for each wheel, a swing arm member (18) on which the wheel is mounted, the swing arm member (18) being arranged to pivot about a substantially horizontal pivot axis, a stop member (21) arranged to engage the swing arm member (18) so as to limit upwards movement thereof, and a biassing mechanism (24) arranged to exert a biassing force on the swing arm member (18) to urge the swing arm member upwards towards the stop member (21). The biassing force is less than the force needed to maintain the swing arm member (18) in engagement with the stop member (21) when the wheel is unsupported. The arrangement is such that the swing arm members (18) normally engage the stop members (21) when the mobile access platform is standing on flat, level ground.Type: GrantFiled: February 1, 1999Date of Patent: July 24, 2001Inventor: Frank Roger Bowden