公开(公告)号：US3568570A

公开(公告)日：1971-03-09

申请号：US3568570D

申请日：1969-03-05

Applicant: DIAMOND POWER SPECIALITY

Inventor： WINDERS GORDON R

IPC: F15B15/14 ,  F15B13/04 ,  F01B25/04

CPC classification number: F15B15/149 ,  F15B15/1447

Abstract: A hydraulically actuatable piston which is subjected to a constant bias (e.g. gravity) in a direction opposite to that in which it is movable under hydraulic pressure is provided with means for accurately maintaining a stationary piston positioning under hydrostatic pressure despite leakage past the piston by a metering valve actuatable by differential movement between the piston and cylinder, fluid being constantly supplied to the underside of the piston and metered past the valve.

公开(公告)号：US3651742A

公开(公告)日：1972-03-28

申请号：US3651742D

申请日：1970-08-21

Applicant: DIAMOND POWER SPECIALITY

Inventor： WINDERS GORDON R

IPC: F15B15/26 ,  F16J1/00

CPC classification number: F15B15/262

Abstract: A vertically disposed elongated cylinder includes a hydraulically actuated piston carried by a hollow piston rod which extends downwardly from the piston through friction-holding means consisting of a series of annular collet assemblies which are spring biased to holding engagement with the piston rod. A coupler for the load is operable from the upper end of the cylinder by a coupling rod extending upwardly through the piston and piston rod.

Abstract translation: 垂直设置的细长圆柱体包括由中空活塞杆承载的液压致动活塞，所述中空活塞杆从活塞向下延伸，该摩擦保持装置由一系列弹簧偏置以保持与活塞杆接合的环形夹头组件组成。 用于负载的联接器可通过向上延伸穿过活塞和活塞杆的联接杆从气缸的上端操作。

公开(公告)号：US3583254A

公开(公告)日：1971-06-08

申请号：US3583254D

申请日：1969-11-05

Applicant: DIAMOND POWER SPECIALITY

Inventor： WINDERS GORDON R

IPC: F16H25/20 ,  G21C7/14 ,  F16H1/16

CPC classification number: F16H25/2025 ,  Y10T74/18704

Abstract: A linearly movable but nonrotatable screwshaft is actuated by a synchronous reluctance electric motor the rotor of which is formed by segment arms which concentrically orbit the screwshaft and carry roller nut sections to drive the shaft when the field of the motor rotates. The segment arms are movable radially through a small travel which is not sufficient to unmesh the roller nut sections from the screwshaft. The magnetic field of the motor urges the segment arms and roller nut sections in a radial direction corresponding to full meshing engagement of the nut sections. Spring bias moves the arms and nut sections in the reverse radial direction to apply braking pads when the field collapses.