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2928 results about "Expansion joint" patented technology

An expansion joint or movement joint is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials, and vibration, or to allow movement due to ground settlement or seismic activity. They are commonly found between sections of buildings, bridges, sidewalks, railway tracks, piping systems, ships, and other structures.

Fire and water resistant, integrated wall and roof expansion joint seal system

A fire and water resistant, integrated wall and roof expansion joint seal system includes an expansion joint seal for a structure. The seal includes a central portion having an underside and at least one central chamber disposed around a centerline, a first flange portion extending outwardly from the centerline and a second flange portion extending outwardly from the centerline in a direction opposite the first flange portion. The system further includes a joint closure. The joint closure includes a core and a layer of a water resistant material disposed on the core. The joint closure further includes an end portion configured to match and integrate with the underside of the central portion to form the watertight, integrated wall and roof expansion joint seal system. A fire retardant material is included in the core in an amount effective to pass testing mandated by UL 2079, and the core with the fire retardant material therein is configured to facilitate compression of the core when installed between the first substrate and the second substrate by repeatedly expanding and contracting to accommodate movement of the first substrate and the second substrate; and the core with the fire retardant material included therein is configured to pass the testing mandated by UL 2079. Movement of one or both of the first substrate and the second substrate causes a response in the central portion to maintain the seal.
Owner:EMSEAL JOINT SYST

Telescopic bidirectional loading and unloading conveyor

The invention discloses a telescopic bidirectional loading and unloading conveyor, which belongs to the field of storage and logistics. The telescopic bidirectional loading and unloading conveyor comprises a base joint, a primary expansion joint, a secondary expansion joint, a belt conveying mechanism, a telescopic mechanism, and an elevator mechanism, wherein a front pedestal and a back pedestalare respectively arranged below the two ends of the base joint, and the back part of the base joint is hinged on the back pedestal; a lifting oil cylinder of the elevator mechanism is hinged on the front pedestal and a piston rod of the elevator mechanism is hinged on the front part of the base joint; the primary expansion joint is nested in the cavity of the base joint and can expand and contract along the base joint under the driving of the primary expansion joint; the secondary expansion joint is nested in the cavity of the primary expansion joint and can expand and contract along the primary expansion joint; the belt conveying mechanism comprises a conveying motor, a belt driven roller and a conveying belt; turnabout drums are respectively arranged at the front and back ends of the base joint, the primary expansion joint and the secondary expansion joint; and the conveying belt can be orderly wrapped on the belt driven roller and each turnabout drum to form a sealed conveying ring. The loading and unloading conveyor has the advantages of bidirectional conveying, convenient move, adjustable conveying height and distance, safety and reliability.
Owner:YANGZHOU SINO-EU IND ROBOT CO LTD

Digital controlled lathe capable of conducting automatic loading and suitable for shaft parts

The invention discloses a digital controlled lathe capable of conducting automatic loading and suitable for shaft parts. The digital controlled lathe comprises a lathe body, wherein the lathe body is provided with a hollow spindle, a sliding rail is arranged on the lathe body in the front and back horizontal direction, a knife rest is arranged on the sliding rail in a slidable manner, the front end of the hollow spindle is coaxially and fixedly connected with a hollow chuck, the knife rest is provided with an electromagnetic attraction mechanism, and an automatic loading device is arranged behind the lathe body; and the automatic loading device comprises a work bin base, the work bin base is fixedly connected with a work bin support, the work bin support is fixedly connected with a storage box, a corrugated pipe expansion joint and an unloading box from top to bottom in sequence, one vibration motor is arranged on the left outer wall of the corrugated pipe expansion joint, one vibration motor is arranged on the right outer wall of the corrugated pipe expansion joint, a stock stop is arranged on the lower portion of the unloading box, and the upper surface of the work bin base is fixedly connected with a material pushing base located under the unloading box. The digital controlled lathe is easy and convenient to operate, high in automation degree and stable in work, and can achieve automatic loading, effectively shorten the auxiliary time and improve the working efficiency.
Owner:HUANGHE S & T COLLEGE
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