DEFOND COMPONENTS LIMITED Patent applications |
Patent application number | Title | Published |
20130220788 | ELECTRICAL SWITCH - An electrical switch has a switch body, actuators, and switch contacts, and at least one moving contact member having first and second ends. Elongate cam sliders extend side-by-side in the switch body, between the actuators and the moving contact member, for sliding lengthwise by the actuators to cause pivotal movement of the moving contact member about the first end such that the second end is moved into and out of contact with at least one of the switch contacts. The first and second ends of the moving contact member lie in a plane extending parallel to the longitudinal extent of the cam sliders, or extend parallel to the length of the cam sliders. | 08-29-2013 |
20130206561 | ELECTRICAL SWITCH - An electrical switch has a fixed contact and a moving contact moving between a first position in contact with the fixed contact and a second position not in contact with the fixed contact. An operating mechanism moves the moving contact and includes a resiliently biased presser resiliently pressing upon the moving contact while riding in opposite first and second directions past a barrier associated with the moving contact, and a spring having first and second parts acting on first and second sides of the presser to maintain the presser in a neutral position and providing extra biasing force to assist the presser in moving faster upon riding past the barrier. | 08-15-2013 |
20130152293 | FLUID-OPERATED ACTUATOR ASSEMBLY - A fluid-operated actuator assembly has a valve with an inlet for connection to a pressurized fluid source, a bi-stable electromagnetic device for operating the valve, which has a first state closing the valve and a second state opening the valve, a hydraulic actuator, and an electronic control circuit. The hydraulic actuator has an actuating member in a housing, the housing having a chamber on one side of the actuating member to which an outlet of the valve is connected for receiving fluid from the fluid source when the valve is opened, the actuating member for operation of the hydraulic actuator. The control circuit momentarily energizes the bi-stable electromagnetic device to the hydraulic actuator from the second state, back to the first state, to terminate operation of the hydraulic actuator. | 06-20-2013 |
20130152292 | LIQUID-OPERATED ACTUATOR ASSEMBLY - A liquid-operated actuator assembly includes a valve with an inlet for connection to a source of a liquid, a bi-stable electromagnetic device for operating the valve, and an actuator including a piston in a cylinder. The piston incorporates an actuating member. The cylinder has a chamber on one side of the piston to which the outlet of the valve is connected for receiving the liquid when the valve is opened in order to move the piston and the actuating member to an operative position. An electronic control circuit momentarily energizes the electromagnetic device for operation of the actuating member and to terminate operation of the actuating member. | 06-20-2013 |
20130105293 | ELECTRICAL SWITCH | 05-02-2013 |
20130089157 | METHOD OF ASSIGNING IDENTIFICATION CODES TO DEVICES IN A NETWORK - A method of assigning identification codes to devices, each device including a controller, a memory, and a switch, with the devices connected in a series circuit. The method includes opening all of the switches, supplying a signal, including an identification code, to the first device of the series circuit and storing the identification code in the memory of the first device, closing the switch of the first device to connect to the next device in the series circuit, sending an acknowledgement to the series circuit, and repeating the process for each of the devices, successively, for each of the devices in the series circuit, and assigning a different identification code to each of the devices. | 04-11-2013 |
20120139450 | METHOD OF CONTROLLING LIGHTS AND CONTROLLER THEREFOR - A method of controlling respective intensity levels of each of N light units, from a first light unit to an Nth light unit. Each of the light units has respective intensity levels from a 0 level to an L level based on duration of illumination of each light unit, In the method, a control signal representing light intensities for each of the N light units, sequentially, in order, for the first light unit to Nth light unit is received and processed. Then, the light units are re-arranged in accordance with the light intensities into a re-arranged order, from level L to level 0. A predetermined time period is counted sequentially through L time intervals. The light units are turned on in the re-arranged order at respective time intervals corresponding to the light intensities; and all light units are turned off at the end of the predetermined time period. | 06-07-2012 |
20110266282 | WEATHER-PROOF SEALING FOR ENCLOSURE - A method of sealing a first part to a second part of an enclosure. The first part is a metal extrusion having a channel-shaped cross-section and the second part is a light-transmissive plate, together forming the enclosure. An electrical light source located in the enclosure shines light through the light-transmissive plate. The sealing method includes placing an elongate seal member into a groove of a first part of the enclosure, extending along the groove, and inserting an edge of a second part of the enclosure into the groove of the first part. | 11-03-2011 |
20100051844 | ELECTROMAGNETIC VALVE - In an electromagnetic valve, a stator assembly includes an electrically energizable coil and a thin-walled core which receives and reciprocally supports an armature. The thin-walled core has a closed end and an open end, the open end being in fluid communication with a fluid flow passage within a valve member. The valve member reciprocates with the armature to control flow rate in the flow passage. A flange integral with the thin-walled core extends about the open end. A washer receives the thin-walled core and abuts the flange. The flange and the washer are received in a recess in the valve body and are permanently and sealingly fixed therein by a swaged joint in the valve body. | 03-04-2010 |
20090167506 | METHOD OF CONTROLLING NETWORKED KITCHEN APPLIANCES - A method of controlling the operation of a wireless network of intelligent kitchen appliances for performing a recipe allows a user to provide authentication of commands received over the network by manual actuation of a touch-sensitive switch mounted to the appliance, and which initiates operation according to the command. A hand-held remote controller has a display for showing instructions to the user. The controller transmits associated appliance commands to the appliance, where they are stored, and the appliance then performs each appliance command conditionally, upon a change of state of the switch. | 07-02-2009 |
20090160639 | KEYLESS ALERT SYSTEM AND METHOD FOR AUTOMOBILES - A keyless alert system for use in a car incorporating a keyless control system including a master controller and a remote controller co-operable via an RF communication link. The keyless alert system comprises a master alert unit in the master controller, a remote alert unit in the remote controller, and an alert signal generator in each of the alert units for providing an alert signal while the car engine is running and when the communication link fails by reason of the remote alert unit being separated from the master alert unit beyond a certain distance. | 06-25-2009 |
20090026058 | TRIGGER MECHANISM - A trigger mechanism for an electric power tool, comprises a spring-loaded trigger movable between an foremost position and an rearmost position, an adjuster for adjusting the rearmost position, an electrical switch arranged for closing by the trigger while the trigger is in an intermediate position, and a variable resistor arranged for operation by the trigger while the trigger is in an intermediate position to provide a resistance having a value dependent upon the position of the trigger. A locking device is included for locking the trigger near the rearmost position, and which is movable in opposite directions and arranged to lock the trigger near the rearmost position when the locking device is moved in either one of opposite directions. | 01-29-2009 |
20080264769 | ELECTRICAL SWITCH - An electrical switch has two fixed contacts and a moving contact, a spring urging the moving contact towards contacting the fixed contacts, and an actuating mechanism for moving the moving contact away from the fixed contacts against urging by the spring and, alternatively, allowing the moving contact to contact the fixed contacts under the action of the spring. The actuating mechanism has an engaging member for engaging and retaining the moving contact and includes a spring acting on the engaging member for separating the moving contact from the fixed contacts through an instant spring-release action. One of the engaging member and the contacts is configured such that the moving contact will be engaged and moved by the engaging member out of contact with one of the fixed contacts earlier than with the other fixed contact. | 10-30-2008 |