Patents Assigned to Pearson Engineering Limited
  • Patent number: 11613857
    Abstract: A deployable bridge carried on or by a vehicle, the bridge being movable from a stowed position to a deployed position, in which a bridge launch mechanism is provided and has only a single actuator.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: March 28, 2023
    Assignee: Pearson Engineering Limited
    Inventor: Richard Cronk
  • Patent number: 10168126
    Abstract: A roller gang for mine clearance is provided. The roller gang comprises: a frame, at least three fixed wheels, wherein the fixed wheels are attached to the frame, the fixed wheels being fixed relative to the frame, a plurality of pivoting arms, wherein each of the pivoting arms is attached to the frame, and a plurality of remaining wheels, wherein the remaining wheels are respectively attached to the plurality of pivoting arms, the remaining wheels being movable relative to the frame.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: January 1, 2019
    Assignee: PEARSON ENGINEERING LIMITED
    Inventor: Richard Cronk
  • Patent number: 10077542
    Abstract: A demountable implement (10) for a vehicle has a mounting arrangement (16) for mounting the implement onto a vehicle. The implement is selectively jettisonable from the vehicle and jettison members (42) for jettisoning the implement are provided on or by the implement.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: September 18, 2018
    Assignee: PEARSON ENGINEERING LIMITED
    Inventor: Graham Emmerson
  • Patent number: 9303957
    Abstract: A roller assembly for applying force to the ground is disclosed. The assembly includes a body adapted to be mounted to a vehicle for moving the assembly, and supports including a first support member supporting a plurality of rollers for applying force to the ground, and a respective piston connected to each roller, the rollers connected via a respective pressure chamber to the corresponding first support member to resist movement of the pistons towards the first support member. The first support member pivotably connected to the body via a first axis such that pivoting movement of the first support member about the first axis as a result of a first torque about an axis has a component about an axis transverse to the direction of travel such that engagement of the rollers with the ground causes a second torque on the first support member opposing the first torque.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: April 5, 2016
    Assignee: Pearson Engineering Limited
    Inventor: Richard Leonard Cronk
  • Patent number: 9279644
    Abstract: A vehicle (2) comprising a vehicle body (6) is disclosed. First struts (16) are mounted to the vehicle body for supporting transport wheels (12) for supporting the vehicle body in a first mode of operation of the vehicle, and second struts (26) are mounted to the vehicle body for supporting roller assemblies (14) for supporting the vehicle body and applying pressure to the ground to detonate explosive devices in a second mode of operation of the vehicle. The transport wheels engage the ground and the rollers are out of engagement with the ground in the first mode, and the rollers engage the ground and the transport wheels are out of engagement with the ground in the second mode. Rollers of one roller assembly partly protrude into gaps between rollers of the other roller assembly.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: March 8, 2016
    Assignee: Pearson Engineering Limited
    Inventor: Richard Leonard Cronk
  • Publication number: 20150268012
    Abstract: A vehicle (2) comprising a vehicle body (6) is disclosed. First struts (16) are mounted to the vehicle body for supporting transport wheels (12) for supporting the vehicle body in a first mode of operation of the vehicle, and second struts (26) are mounted to the vehicle body for supporting roller assemblies (14) for supporting the vehicle body and applying pressure to the ground to detonate explosive devices in a second mode of operation of the vehicle. The transport wheels engage the ground and the rollers are out of engagement with the ground in the first mode, and the rollers engage the ground and the transport wheels are out of engagement with the ground in the second mode. Rollers of one roller assembly partly protrude into gaps between rollers of the other roller assembly.
    Type: Application
    Filed: March 26, 2014
    Publication date: September 24, 2015
    Applicant: Pearson Engineering Limited
    Inventor: Richard Leonard Cronk
  • Patent number: 8887827
    Abstract: A mounting assembly (6) for mounting a bulldozer blade (2) to a vehicle (4) is disclosed. The assembly comprises a lower link (8) adapted to be mounted to a vehicle, a pair of first actuators (16, 18) adapted to be pivotably mounted to the blade, and to a pair of link plates (24, 26) via respective pin joints (28, 30), and a pair of second actuators (36, 38) adapted to adjust the position of respective pin joints (28, 30) relative to the lower link to adjust the orientation of the blade relative to the vehicle.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: November 18, 2014
    Assignee: Pearson Engineering Limited
    Inventor: James Simpson
  • Publication number: 20130240226
    Abstract: A mounting assembly (6) for mounting a bulldozer blade (2) to a vehicle (4) is disclosed. The assembly comprises a lower link (8) adapted to be mounted to a vehicle, a pair of first actuators (16, 18) adapted to be pivotably mounted to the blade, and to a pair of link plates (24, 26) via respective pin joints (28, 30), and a pair of second actuators (36, 38) adapted to adjust the position of respective pin joints (28, 30) relative to the lower link to adjust the orientation of the blade relative to the vehicle.
    Type: Application
    Filed: March 12, 2013
    Publication date: September 19, 2013
    Applicant: Pearson Engineering Limited
    Inventor: James Simpson
  • Patent number: 7607740
    Abstract: A wheel assembly for a vehicle such as a tractor is disclosed. The assembly comprises a wheel rim (10) for supporting a tire, a nave plate (11) mounted to the rim, and a drive plate (21) mounted to an axle flange (26). A torque ring (18) has first key ways (16, 17) for cooperating with first keys (14, 15) on nave plate (11), and second key ways (19, 20) for cooperating with second keys (22, 23) on drive plate (21). In this way, torque and radial and axial forces are transferred between the drive plate (21) and nave plate (11), but radial or axial forces, tending to remove the assembly from the axle, and exceeding respective predetermined levels, are prevented from being transferred from the nave plate (11) to the axle.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: October 27, 2009
    Assignee: Pearson Engineering Limited
    Inventor: Alan Richard Reese
  • Patent number: 6915728
    Abstract: A mine detonating apparatus to be mounted to an armoured personnel carrier (1) is disclosed. A front roller assembly (4) is mounted at the front of a vehicle body (2) of the armoured personnel carrier (1) to apply pressure to the ground forwardly of each track (3) of the armoured personnel carrier (1). A rear roller assembly (10) is mounted rearwardly of the vehicle body (3) to apply pressure to the ground behind the vehicle, the front and rear rollers (4, 10) being pre-loaded. The rear roller assembly (10) is connected to the vehicle body by means of hydraulic cylinders (15, 16) and a support frame (8) supporting the front roller assemblies (4) is connected to the vehicle body (2) by of a pair of hydraulic cylinders (17, 18). The hydraulic cylinders (15, 16, 17, 18) are arranged to maintain the position of the front roller assemblies forwardly of the respective tracks (3).
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: July 12, 2005
    Assignee: Pearson Engineering Limited
    Inventors: Peter John Renwick, Graham Emmerson
  • Patent number: 5588232
    Abstract: A linkage for coupling a vehicle to a ground-engaging implement consists of two links, the first link being connected at one end to the vehicle such that it can pivot both around the longitudinal axis of the link and around a line transverse to that axis and connected at its second end to the implement to pivot around a line transverse to its longitudinal axis; the second link being connected in a similar fashion but oppositely to the first link.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: December 31, 1996
    Assignee: Pearson Engineering Limited
    Inventor: Peter J. Renwick
  • Patent number: D779566
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: February 21, 2017
    Assignee: Pearson Engineering Limited
    Inventor: Richard Leonard Cronk
  • Patent number: D800798
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: October 24, 2017
    Assignee: Pearson Engineering Limited
    Inventor: Glen Stewart