Class 200/214 - With movable liquid-separating or shifting means

Subclass of Class 200 - Electricity: circuit makers and breakers
Definition: Subject matter wherein the switch circuit is broken by utilizing
No. of patents: 33
Last issue date: 04/15/2008

Number	Title	Issue Date
7358833	Method and apparatus for signal processing using electrowetting An apparatus comprising a tuning device having at least one control electrode and a ground electrode located over a substrate and an electrically conductive fluid in contact with the control and ground electrodes. The tuning device also has at least one electrical t...	04/15/2008
7234233	Method of manufacturing an electromagnetic relay The present invention relates to an electrical relay in which a solid slug is moved within a channel and used to make or break an electrical connection. The solid slug is moved by electromagnets. In the preferred embodiment, the slug is wetted by a conducting liquid...	06/26/2007
7147478	Electric element having liquid metals An electric element for electric connection of two corresponding electric elements comprises: two conductors; and liquid metals with low impedance connecting to the two conductors. The two conductors keep in contact with the liquid metals at a situation of relative ...	12/12/2006
7032337	Multi-function desk calendar A desk calendar has a base, a calendar page binder, two end blocks and a central block. The base has a top, a rear end, two sides, an auxiliary appliance stand and a channel. The auxiliary appliance stand is formed on the top to provide a place for an auxiliary appl...	04/25/2006
7012354	Method and structure for a pusher-mode piezoelectrically actuated liquid metal switch A method and structure for an electrical switch. According to the structure of the present invention, a liquid-filled chamber is housed within a solid material. A plurality of switch contacts within the liquid-filled chamber are coupled to the solid material, while ...	03/14/2006
7005593	Liquid electrical microswitch A liquid electrical switch is disclosed that uses a plurality of droplets of conducting liquid to form an electrical path. In a first embodiment, at least a first voltage differential is used to create a separation distance between two droplets. The droplets are ill...	02/28/2006
6989500	Liquid metal contact reed relay with integrated electromagnetic actuator A miniaturized relay with an integrated electromagnetic actuator allows scaling a reed relay to a small size to reduce the power needed to actuate it while retaining a high quality liquid metal contact. A dragged liquid metal contact is used. Coplanar waveguides may...	01/24/2006
6946775	Method and structure for a slug assisted longitudinal piezoelectrically actuated liquid metal optical switch A method and structure for an optical switch. A channel is housed within a solid material. Contacts coupled to the channel are further coupled to the solid material, while a plurality of piezoelectric elements are coupled to chamber and further coupled to a slug. Op...	09/20/2005
6946776	Method and apparatus for maintaining a liquid metal switch in a ready-to-switch condition A method and apparatus for maintaining a liquid metal switch in a state of readiness for switching. The liquid metal switch has a liquid metal volume contained in a cavity of a switch body. A signal path though the cavity is made or broken by energizing an actuator ...	09/20/2005
6903493	Inserting-finger liquid metal relay An electrical relay comprising having two wettable electrical contacts supporting a conducting liquid. A non-wettable switch finger is moved between first and second positions between the electrical contacts by action of an actuator. In the first position the switch...	06/07/2005
6903492	Wetting finger latching piezoelectric relay An electrical relay having two wettable electrical contacts, each supporting a conducting liquid. A wettable switch finger is moved from a non-deflected position to first and second positions by action of an actuator. In the first position the switch finger touches ...	06/07/2005
6900578	High frequency latching relay with bending switch bar An electrical relay that uses a conducting liquid in the switching mechanism. In the relay, a pair of moveable switching contacts is attached to the free end of a switch bar and positioned between a pair of fixed electrical contact pads. The connections to the switc...	05/31/2005
6894424	High frequency push-mode latching relay An electrical relay that uses a conducting liquid in the switching mechanism. In the relay, a pair of moveable switching contacts is positioned between a pair of fixed electrical contact pads. A surface of each contact supports a droplet of a conducting liquid, such...	05/17/2005
6891315	Shear mode liquid metal switch A piezoelectric relay is disclosed in which a liquid metal droplet is moved within a switching channel formed in relay housing. A signal path passing through the switching channel is blocked or unblocked by motion of the liquid metal droplet that coalesces with one ...	05/10/2005
6885133	High frequency bending-mode latching relay An electrical relay that uses a conducting liquid in the switching mechanism. In the relay, a pair of moveable switching contacts is attached to the free end of a piezoelectric actuator and positioned between a pair of fixed electrical contact pads. The electrical c...	04/26/2005
6882088	Bending-mode latching relay An electrical relay that uses a conducting liquid in the switching mechanism. In the relay, a pair of moveable electrical contacts is attached to the free end of a piezoelectric actuator and positioned between pair of fixed electrical contacts. The contacts each sup...	04/19/2005
6879089	Damped longitudinal mode optical latching relay A piezoelectric optical relay is disclosed in which a solid slug moves within a switching channel formed in relay housing. An optical path passing through the switching channel is blocked or unblocked by motion of the solid slug. Motion of the solid slug is controll...	04/12/2005
6879088	Insertion-type liquid metal latching relay array An electrical relay array using conducting liquid in the switching mechanism. The relay array is amenable to manufacture by micro-machining techniques. Each element of the relay array uses an actuator, such as a piezoelectric element, to cause a switch actuator to i...	04/12/2005
6876133	Latching relay with switch bar An electrical relay that uses a conducting liquid in the switching mechanism. In the relay, a pair of switching contacts is attached to the free end of a switch bar and positioned between a pair of fixed electrical contact pads. A surface of each contact supports a ...	04/05/2005
6876130	Damped longitudinal mode latching relay A piezoelectric relay is disclosed in which a solid slug moves within a switching channel formed in relay housing. An electrical circuit passing between fixed contact pads in the switching channel is completed or broken by motion of the solid slug. Motion of the sol...	04/05/2005
6876132	Method and structure for a solid slug caterpillar piezoelectric relay A method and structure for an electrical switch. A gas-filled chamber is housed within a solid material. Contacts within the gas-filled chamber are coupled to the solid material, while a plurality of piezoelectric elements within the gas-filled chamber are also coup...	04/05/2005
6797901	Switch device and method of making same The switch device comprises a pair of cavities, an elongate passage, a non-conductive fluid having a high electrical resistance, a conductive fluid having a high electrical conductivity and an electrical path. The passage is in fluid communication with the cavities ...	09/28/2004
6762378	Liquid metal, latching relay with face contact An electrical relay using conducting liquid in the switching mechanism. Two electrical contacts are held a small distance apart. The facing surfaces of the contacts each support a droplet of a conducting liquid, such as a liquid metal. A piezoelectric actuator is en...	07/13/2004
6756551	Piezoelectrically actuated liquid metal switch The present invention uses a piezoelectric method to actuate a liquid metal relay. The method described here uses the piezoelectric element in an extension mode to cause the switch actuator to insert into a cavity in the static (i.e. nonmoving) switch contact struct...	06/29/2004
6756552	Multi-pole conductive liquid-based switch device The multi-pole, conductive liquid-based switch device includes an elongate passage, a first cavity, a second cavity, at least four electrodes disposed along the length of the passage, channels that extend from the passage, non-conductive fluid located the cavities a...	06/29/2004
6740829	Insertion-type liquid metal latching relay A high frequency electrical relay uses a conducting liquid in the switching mechanism. The relay uses an actuator, such as a piezoelectric element, to cause the switch actuator to insert into a cavity in a static switch contact structure. The cavity has sides and a ...	05/25/2004
6559420	Micro-switch heater with varying gas sub-channel cross-section An apparatus for separating a liquid in a liquid metal micro-switch. In representative embodiments, the apparatus comprises a heater and a sub-channel inside a structure. The heater is located inside a cavity of the structure onto which the liquid metal m...	05/06/2003
6459055	Acceleration responsive switch An acceleration responsive switch includes a material that changes from a high viscosity to a low viscosity when subjected to acceleration forces. The material's change in viscosity causes the switch to change from one state to another....	10/01/2002
6323447	Electrical contact breaker switch, integrated electrical contact breaker switch, and electrical contact switching method An electrical contact breaker switch has a cavity or space that forms first and second chambers and a plurality of channels. The switch also has at least two solid electrodes formed with electrode components exposed apart from each other within the cavity...	11/27/2001
5602371	Motor vehicle electrical system deactivating switch A motor vehicle electrical system disconnect switch is disclosed which operates to disconnect the positive lead of the battery of a motor vehicle from its electrical system and to ground the positive lead of the vehicle alternator upon either the applicat...	02/11/1997
4475022	Desk accessory system This is a multi-purpose, low-profile desk accessory in which a horizontally oriented flat base sheet is formed with upstanding walls which define a plurality of shallow storage wells, including one for the storage for a roll of tape which is horizontally ...	10/02/1984
4047135	Cylindrical, linear, stopless mercury switch and relay A linear mercury-wetted switch is housed within a hollow, elongated, sealed, cylindrical tube having a pair of mercury-wetted, spaced contacts which can be bridged by a conforming but spaced electromagnetically driven contact element in the form of a slid...	09/06/1977
3955059	Electrostatic switch An electrostatically controlled electrical relay switch is disclosed which includes two chambers joined together by a constricted region therebetween. A conducting liquid, such as mercury, is positioned in one of the chambers and the movement thereof betw...	05/04/1976

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Class 200/214 - With movable liquid-separating or shifting means