Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7439832 | Electrical wiring device switch assembly and combination device with circuit protection component An electrical wiring device including a plurality of independent switches and a circuit interrupter. In an aspect, two adjacent switches are provided. The user accessible portions of the switches operate in a direction parallel to the major longitudinal axis of the ... | 10/21/2008 |
| 7423555 | Human-machine interface apparatus with expanded function A human machine interface with expanded function includes a panel and a printed circuit board. A first key apparatus electrically coupled to the printed circuit board is mounted on the panel. The printed circuit board provides an expansion interface for optionally c... | 09/09/2008 |
| 7414499 | Circuit interrupting device with a single test-reset button A ground fault circuit interrupter device having a single actuator for sequentially activating a circuit interrupting portion when the device is in a reset condition and a reset portion when the device is in a tripped condition. The circuit interrupting portion brea... | 08/19/2008 |
| 7338029 | Compact solenoid A compact solenoid including a coil and a frame located outside the coil for constituting a magnetic circuit. The frame includes four bars extending in parallel to the axial direction of the coil and located proximate to the outer circumferential face of the coil. E... | 03/04/2008 |
| 7336469 | Insert-molded product A ground wire connection nut (14A) and a cover-fixing nut (14B) are molded in a case (12) at positions shifted in an axial direction thereof. Caps (17) are mounted on each nut (14A, 14B). First and second receiving surfaces ... | 02/26/2008 |
| 7221106 | Cordset based appliance controller An apparatus and method for distributed control of an electrical appliance having a plug and a load and two power carrying conductors connecting the plug to the load, comprising locating power control elements completely within the plug, connecting interface element... | 05/22/2007 |
| 7206888 | Backplane configuration with shortest-path-relative-shift routing A novel backplane routing and configuration (200) supports a full mesh architecture. In this novel configuration, a circuit pack determines which backplane signals to use for a transmission based on the relative distance across the backplane between the board... | 04/17/2007 |
| 7109833 | Terminal block time delay relay A terminal block time delay relay includes a terminal block, a plurality of terminals, a first timing control, and a timing circuit. The terminal block defines a socket operable to receive an electrical relay. The plurality of terminals are accessible at edges of th... | 09/19/2006 |
| 7007788 | Banknote validator A banknote validator for determining the value and authenticity of a banknote is provided. The banknote validator includes a magnetic sensor, an optical sensor, and a non-return gate. The magnetic sensor includes a magnetic circuit and an electronic circuit. The opt... | 03/07/2006 |
| 6921989 | Electrical switchgear with synchronous control system and actuator A closed loop feedback system controls electrical switchgear that moves at least one contact relative to another contact to switch power on and off in an AC electrical circuit. The control system includes a position feedback device that is operatively coupled to at ... | 07/26/2005 |
| 6903910 | Shielded enclosure with user-installable interface modules An RF shielded enclosure that is configurable for a variety of testing requirements, yet still maintain proper RF isolation. User-installable modules that are specialized for the desired interface, ventilation or monitoring use can be installed on the enclosure to a... | 06/07/2005 |
| 6891710 | Method for control of a proportional magnet with a hold function Method for control of a proportional magnet comprising a magnet core, a magnet armature, a magnet coil for operating a control element in a shift valve or a proportional pressure-control valve, particularly a pressure-control valve for clutch operation in an automat... | 05/10/2005 |
| 6753685 | Power detector with increased detection range The invention relates to a device (100, 200) for use in the detection of the power that passes through an electronic device, comprising means (110) for division of the power that enters the device into a first and a second branch. Each branch receives ... | 06/22/2004 |
| 6745449 | Method and apparatus for making a lid with an optically transmissive window A metal plate (126) has a plurality of openings (127) extending through it, and is cleaned using a wet hydrogen process (157). Glass windows (106) are then placed in the openings, and are each fused to the metal plate by heat (231)... | 06/08/2004 |
| 6483687 | Power supply apparatus A voltage from an AC power source is converted into a DC voltage in an input-side rectifier-smoother circuit. The DC voltage is then converted into a high-frequency voltage in an inverter, and the resulting high-frequency voltage is voltage-transformed in... | 11/19/2002 |
| 6477026 | Single package solenoid having control circuit A single package solenoid includes a package, a solenoid coil, and a control circuit. The solenoid coil and the control circuit are contained in the package. The control circuit is coupled to the solenoid coil and has a control terminal. The control circu... | 11/05/2002 |
| 6392863 | Banknote validator The optical sensor (305,306) comprises a trapezoidal light guide (34, 104), a broadband light source (350) fo illuminating a banknote via the light guide (34, 104) and sensors (351, 352, 353) for detecting light reflected from the banknote via the light g... | 05/21/2002 |
| 5592356 | Dual coil actuator with timing circuit A solenoid actuator for controlling the flow of fuel used by an engine is provided. The solenoid actuator includes a solenoid housing, timing circuit housing and a solenoid connector. The solenoid housing contains a pull coil and a hold coil. First side a... | 01/07/1997 |
| 5586014 | Fuse arrangement and capacitor containing a fuse A fuse arrangement includes a fuse element having a serpentine shape disposed resilient and incombustible or fire-resistant insulating plates and external connection terminals formed at the fuse arrangement. A capacitor has a safety fuse with a fuse eleme... | 12/17/1996 |
| 5486972 | AC powered electrical control device with logic level control The coil of an electric control device is energized by ac power controlled by a remotely generated logic level signal through a control module mounted in a cavity in the exterior of the device housing. The module contains a pair of back-to-back silicon co... | 01/23/1996 |
| 5467246 | Arrangement for emulating an H-type relay air valve which is utilized in a railway braking system An H-5 relay air valve emulating circuit for use in an electropneumatic railway brake control equipment including an operational amplifier comparator and a solenoid relay. The operational amplifier comparator includes a positive and a negative input and a... | 11/14/1995 |
| 5304973 | Coil for electromagnetically actuating a switching device A coil for electromagnetically actuating a switching device. The coil includes terminal connections retained in a coil flange for the coil where there are recesses in the flange to accommodate electrical components. The terminal connections are developed ... | 04/19/1994 |
| 5172298 | Electromagnetic actuator An electromagnetic actuator for use with a fuel injection pump, for example, has a position detector for detecting the operating position of a plunger which is axially movable. The electromagnetic actuator includes a core mounted on one end of the plunger... | 12/15/1992 |
| 5055813 | Magnetization/demagnetization device A compact, portable magnetization/demagnetization device comprises a tubular housing internally of which at one end is mounted an electrical coil which surrounds a cavity accessible to screwdrivers and the like. At the opposite end of the housing there is... | 10/08/1991 |
| 4965695 | Permanent magnetic retaining device to move, affix or carry ferromagnetic parts or loads with electronic switching of the magnetic flux to release the carried load Permanent magnetic retaining device to move, affix or carry ferromagnetic parts or load with electronic switching of the magnetic flux to release the carried load includes a central iron core enclosed by a pair of magnet blocks secured by iron shoes, late... | 10/23/1990 |
| 4954924 | Switch for high magnetic field A switch is mounted in a housing of a high-intensity static magnetic field generator and the housing includes a rotation shaft supported on the housing, a coil mounted relative to rotation shaft, an arm energized by the coil, arm energized by that arm, a ... | 09/04/1990 |
| 4893213 | Multi-stage solenoid with time delayed actuation The present invention pertains to a multi-stage solenoid in a housing having a first set of electrical contacts and at least a second set of electrical contacts. The solenoid also has at least two coil windings electrically distinct from each other and di... | 01/09/1990 |
| 4816961 | Electrical switch, in particular for the control of cap outfits and fittings The switch comprises, incorporated in its casing (2), an upper circuit board (16) which carries a control electronic circuit (18) and a lower circuit board (24) which carries power components, such as relays (26), for the feed power supply of the apparatu... | 03/28/1989 |
| 4811157 | Electromagnetic relay with light signaling device An electromagnetic relay provided with a light signaling device and comprising a support on which a base is fixed for a printed circuit carrying a LED and a resistor. A pair of conductors connect the printed circuit to a coil of attraction of the relay.... | 03/07/1989 |
| 4527310 | Secure release apparatus for anti-theft fastening device The secure release apparatus is used with an anti-theft device having a member which is movable in response to an applied magnetic field. The secure release apparatus comprises a cover plate with an access opening and a permanent magnet structure which pr... | 07/09/1985 |
| 4419646 | Electric proximity sensor An electric proximity switch of the type that is inserted into the cylinder wall of a hydraulic cylinder and is sealed tight with respect to the hydraulic fluid, the proximity sensor having a pick-up coil (24), a pot core (32) adapted to receive the pick-... | 12/06/1983 |
| 4382241 | Valve adjustment unit for hydraulic proportional-response valve A valve adjustment unit for an electronically controlled hydraulic proportional-response valve comprising a proportional-response magnet unit, a coaxially connected electronic control unit, and an intermediate insulating spacer body surrounding the induct... | 05/03/1983 |
| 4228483 | Sequential control electrical chain comprising assembled coupling connector modules Associable coupling connector for each of the storage relays of a sequential automatic device. The coupling connector comprises on the one hand the pins placed at the back of sockets which are assembled in three different areas of the front face, allotted... | 10/14/1980 |
| 4218722 | Compact hand-held demagnetizing device A compact hand-held demagnetizing device is used for demagnetizing a magnetic recording and reproducing head. It comprises a handle portion and a demagnetizing head. The handle portion contains a circuit for generating a decreasing alternating current for... | 08/19/1980 |
| 4103842 | Locking sensor for belt retractor An emergency locking retractor system for storing a length of safety belt incorporates a sensor which includes a multi-directional pendulum device displaceable from its rest position by acceleration. Displacement of the pendulum is utilized to change the ... | 08/01/1978 |
| 4063157 | Magnetic testing device for internal surfaces of pipe using a magnetizing means and expandable magnetizable material within the pipe A magnetic testing device is provided in which a magnetic recording tape or paper is wrapped around the outside of a tubular pressure member of elastomeric material which is disposed between two circular end plates which form pole portions of a yoke havin... | 12/13/1977 |
| 4020394 | Ground fault detector A ground fault detector for protecting an electrical power system against ground leakage currents. The detector is of the differential transformer type, in which the primary windings of the transformer are connected in series with the hot and neutral line... | 04/26/1977 |
| 3974581 | Anti-theft fastening device and tool for releasing same A fastening device for securing articles together, the device including releasably connected male and female components. The male component comprises a pin and the female component comprises a retaining insert positioned in a housing for releasably clampi... | 08/17/1976 |
