Patents Assigned to Technical Development Co.
  • Patent number: 7686064
    Abstract: A motorized and manual clutch of curtain track, set on a curtain track, the curtain track is provided with a belt which is driven by motor and carrier hook parts which are used to hang curtain. The motorized and manual clutch is composed of a clutch body module and a clutch bar module, the clutch body module and said clutch bar module are detachably connected. A gap is provided on the belt, the clutch body module is set in the gap, connected with the belt and moved with the belt. The clutch bar module is set under the clutch body module connected with the carrier hook parts and moves the carrier hook parts. The application of the new practical motorized and manual clutch of curtain track solves the operation problem when power cut or breakdown motor or electrical circuit. It further improves the practical value of motorized curtain track.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: March 30, 2010
    Assignee: Shanghai Qing Ying Sun-Shading Technical Development Co., Ltd.
    Inventor: Duanqing Gu
  • Patent number: 4302754
    Abstract: An electromagnetic system is provided to monitor the activity of a ferrous debris detector of the type which uses electric discharges to automatically disintegrate magnetically concentrated accumulations of micron sized wear particles in hydraulic systems. The data provided are used to detect instances of abnormal wear as shown by either an unusually large number of such discharges or an excessive rate of discharge. Where such abnormality occurs the monitor will provide an audiovisual alarm to warn of the problem in time to prevent catastrophic failure of the system.
    Type: Grant
    Filed: February 12, 1979
    Date of Patent: November 24, 1981
    Assignee: Technical Development Co.
    Inventors: James H. Magee, Thomas E. Tauber
  • Patent number: 4282016
    Abstract: An apparatus for removing entrapped gas and selectively removing and detecting particles above a predetermined size in an oil lubrication system is described. The oil enters tangentially at the top of an outer cylinder and is caused to cyclonically work its way down to the bottom of the cylinder. The oil is then forced to reverse its flow and travel up along an inner cylinder. The centrifugal force fields created by such flow cause entrapped gas to coalesce in the center of the flow pattern from which point it can be vented from the system. It also causes heavier particles, which are used by the apparatus to detect impending failure, to be thrown out of the flow pattern into a detection cavity positioned at the bottom of the outer cylinder at its periphery while lighter particles remain suspended in the fluid. A conventional magnetic sensor is contained within the cavity to capture the separated particles for subsequent removal from the system and signal their presence to the operator of the system.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: August 4, 1981
    Assignee: Technical Development Co.
    Inventors: Thomas E. Tauber, George E. Chapman
  • Patent number: 4127921
    Abstract: For clamping a hose or flexible pipe on an insert of corresponding cross-sectional shape, there is disclosed a hose clip which is of generally coil spring configuration and which has two mutually engageable hooked end portions each projecting generally outwardly of the coil, the hose clip having, in its relaxed condition, a non-integral number of turns of a characteristic diameter and being constructed such that, on elastically deforming the hose clip (without plastically deforming it) to bring the hooks of the hooked end portions thereof into mutual engagement, the hose clip assumes its clamping position and the configuration of a coil spring having an integral number of turns the diameter of which is smaller than the said characteristic diameter. Preferably, the hose clip is formed of spring steel wire and comprises one complete and one incomplete turn of the wire when the hose clip is in its relaxed condition.
    Type: Grant
    Filed: May 3, 1977
    Date of Patent: December 5, 1978
    Assignee: Innovation and Technical Development Co.
    Inventor: David J. Townsend