Cranes and crane systems with high capacity lifting capabilities, as well as versatility and relatively large operational areas. A crane of the present disclosure may have main boom pivotable about a substantially horizontal axis and a luffing assembly configured for luffing the boom about the axis. The main boom may be pivotable in both a forward luffing operation and a reverse or rearward luffing operation. In this way, the main boom may be operable within a range extending up to 180 degrees. Various adjustment mechanisms may be used to shift the main boom from a forward luffing operation to a reverse luffing operation. Additionally, a crane of the present disclosure may have a utility boom rotatable about a substantially vertical axis. The utility boom may allow for added lateral reach of the crane, thus further increasing the operational area of the crane.

Components and systems for a flexible tensioning member for construction equipment. A tensioning member is comprised of a fiber having a specific tensile strength greater than 1,000 kilonewton meters per kilogram. The tensioning member connects two components and has an attachment allowing the tensioning member to flex relative to a component. The attachment may provide a system for connecting multiple tensioning members.

Components and systems for a flexible tensioning member for construction equipment. A tensioning member is comprised of a fiber having a specific tensile strength greater than 1,000 kilonewton meters per kilogram. The tensioning member connects two components and has an attachment allowing the tensioning member to flex relative to a component. The attachment may provide a system for connecting multiple tensioning members.

Disclosed is a mobile articulated crane having a boom for carrying a load when the crane is stationary and while the crane is mobile. The boom has an end for engaging with a load and an opposed end. The crane further comprises a counterweight attached to the boom at or close to the opposed end of the boom. A rear body of the crane can comprise first and second rear axles, each for supporting the rear body on the ground. The first rear axle can be arranged to be displaced relative to the second rear axle such that wheels of the first rear axle selectively engage or disengage with the ground.

The present invention pertains to a nut to be used as part of a fastener to be used in multiple ways in various industries or methods. The nut has a drive mechanism and stud extending from the drive mechanism with a threaded bore. In addition the nut can be specifically used as a method and as part of special fastener that can be used to join cut, hard-wood members, other naturally occurring manufactured mat members or synthetically man made members, referred to as timber(s) or laminated, in forming a mat used for heavy construction equipment to run on over ground which is not stable. These mats are commonly referred to as Crane Mats or Laminated Mats in the construction, mining, pipeline, and oil and gas industries among others.

The present invention pertains to a nut to be used as part of a fastener to be used in multiple ways in various industries or methods. The nut has a drive mechanism and stud extending from the drive mechanism with a threaded bore. In addition the nut can be specifically used as a method and as part of special fastener that can be used to join cut, hard-wood members, other naturally occurring manufactured mat members or synthetically man made members, referred to as timber(s) or laminated, in forming a mat used for heavy construction equipment to run on over ground which is not stable. These mats are commonly referred to as Crane Mats or Laminated Mats in the construction, mining, pipeline, and oil and gas industries among others.

Transmission of vibration from an engine to a cab is suppressed. An upper slewing body includes a slewing frame, an engine deck, a cab deck, a tank deck, and a vibration transmission regulating unit. The tank deck is arranged on the more laterally outer side than the slewing frame and is fixed to the slewing frame. The tank deck is arranged forward of the engine deck and is arranged rearward of the cab deck. The vibration transmission regulating unit is provided between the engine deck and the tank deck to regulate direct transmission of vibration from the engine deck to the tank deck, the vibration occurring as the engine operates.

In an offshore crane vessel with a crane, for example for use in the handling of one or more offshore wind turbine components, the crane includes a superstructure that is rotatable with respect to a pedestal, and a boom having a length of 60-200 meters. A boom luffing assembly is provided for pivoting the boom about a horizontal boom pivot axis. The crane further includes a main hoisting device for hoisting a load, including a main hoist block assembly supported by a head structure, wherein the head structure is a travelling head structure which is slidable along a part of the boom from the tip end to a second position on the boom.

Overhead lifts with control systems are disclosed. The overhead lifts may include a lift actuator communicatively coupled to a control system. The control system may include a control unit comprising a processor and a memory having computer readable and executable instructions and at least one port for communicatively coupling the control unit to at least one of a computer, a network, and a data storage device. The processor executes the computer readable and executable instructions to: determine at least one operating characteristic of the overhead lift and an operating time of the overhead lift as the overhead lift is actuated; determine an accumulated load-time parameter for the overhead lift based on the at least one operating characteristic and the operating time; and provide an indication that a component of the overhead lift requires service based on the comparison of the accumulated load-time parameter to a service constant.

Overhead lifts with control systems are disclosed. The overhead lifts may include a lift actuator communicatively coupled to a control system. The control system may include a control unit comprising a processor and a memory having computer readable and executable instructions and at least one port for communicatively coupling the control unit to at least one of a computer, a network, and a data storage device. The processor executes the computer readable and executable instructions to: determine at least one operating characteristic of the overhead lift and an operating time of the overhead lift as the overhead lift is actuated; determine an accumulated load-time parameter for the overhead lift based on the at least one operating characteristic and the operating time; and provide an indication that a component of the overhead lift requires service based on the comparison of the accumulated load-time parameter to a service constant.