| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 200084000 | FLOAT | 8 |
| 20080223709 | FLUID LEVEL SWITCH - The present invention provides a float level switch featuring a housing; an actuator shaft arranged in the housing; and a low force shaft seal assembly arranged between the actuator shaft and the housing, having a combination of disks or seals, one being made of a semi-rigid lubricious material, for maintaining a watertight seal with a substantially reduced rotational force or friction on the actuator shaft than a conventional O-ring. | 09-18-2008 |
| 20090026060 | Position Responsive Switch - A position responsive switch. A position responsive switch comprises of a two chamber housing having a first and a second chamber. An aperture is disposed between the two chambers. A first lead wire and a second lead wire extend through the second chamber. A first and second set of contact members are coupled to the first lead wire and second lead wire. A conductive object is disposed within the two chamber housing. The conductive object is disposed in the second chamber and couples a contact member from the first set and second set together to form an electrical communication therewith. The first set of contact members and the second set of contact members are splayed upon and substantially conforming to the contour of an interior surface of the second chamber; and alternate in configuration around the chamber. An airtight container is configured to enclose the two chamber housing. | 01-29-2009 |
| 20090277768 | Low Oil Trip Assembly for a Fault Interrupter and Load Break Switch - A fault interrupter and load break switch includes a trip assembly configured to automatically open a transformer circuit electrically coupled to stationary contacts of the switch upon the occurrence of a fault condition. The fault condition causes a Curie metal element electrically coupled to at least one of the stationary contacts to release a magnetic latch. The release causes a trip rotor of the trip assembly to rotate a rotor assembly. This rotation causes ends of a movable contact of the rotor assembly to electrically disengage the stationary contacts, thereby opening the circuit. The switch also includes a handle for manually opening and closing the electrical circuit in fault and non-fault conditions. Actuation of the handle coupled to the rotor assembly via a spring-loaded rotor causes the movable contact ends to selectively engage or disengage the stationary contacts. | 11-12-2009 |
| 20090294269 | OIL LEVEL DETECTING SWITCH - Oil level detecting switch, which detects an amount of lubricant oil stored in an oil pan, includes: a switch case having through-holes to permit entry and discharge of oil into and out of the switch case; a float of a spherical shape having smaller specific gravity than the oil and conductive outer surface and provided within the switch case for vertical movement in response to increase/decrease of the oil; and a plurality of fixed contacts provided on the bottom surface of the switch case such that the fixed contacts are placed in a conducting state by the float contacting the fixed contacts. | 12-03-2009 |
| 20150332882 | High Temperature Float Switch System - A high temperature float switch system for usage in high temperature environments. The high temperature float switch system generally includes a housing having a double wall design that houses a switch unit within the inner wall. The double wall design is comprised of an inner wall positioned within an outer housing. An intermediate space is preferably between at least a portion of the inner wall and the outer housing to receive any water vapor that passes through the outer housing thereby preventing the entry of the water vapor into the interior space of the inner wall. | 11-19-2015 |
| 20120125756 | FLOAT SWITCH - A float switch includes a floater ( | 05-24-2012 |
| 20130327625 | Magnetic Float Switch - Embodiments of the invention provide a float switch with a float housing having a magnetically-activated, hermetically-sealed reed switch secured within an interior cavity in a first orientation and a permanent magnet positioned in a second orientation. The permanent magnet is movable within a chamber in the interior cavity between a first activation position and a second non-activation position. For connection to a pump, electrical conductors extend from the float housing at one end and are electrically coupled to the reed switch. | 12-12-2013 |
| 20140183021 | FLOAT SWITCH DEVICE WITH MAGNETIC TONGUE - A float switch device includes a tubular member, a magnet tube and a magnetic switch. The tubular member has a first restriction portion and a second restriction portion formed on an external surface thereof. The magnet tube is sleeved over the tubular member, and is movable between the first restriction portion and the second restriction portion. The magnetic switch includes at least two metal tongues, where each of the metal tongues includes an interior contact point and an exterior contact point. The float switch device is placed in a casing in such way that the exterior contact points are electrically connected to an external apparatus. When the casing is tilted upward or downward by the change in water level, the magnet tube moves between the first and second restriction portions to switch the float switch device between the ON/OFF state. | 07-03-2014 |
| 200084000 | Magnet | 3 |
| 20080223709 | FLUID LEVEL SWITCH - The present invention provides a float level switch featuring a housing; an actuator shaft arranged in the housing; and a low force shaft seal assembly arranged between the actuator shaft and the housing, having a combination of disks or seals, one being made of a semi-rigid lubricious material, for maintaining a watertight seal with a substantially reduced rotational force or friction on the actuator shaft than a conventional O-ring. | 09-18-2008 |
| 20090026060 | Position Responsive Switch - A position responsive switch. A position responsive switch comprises of a two chamber housing having a first and a second chamber. An aperture is disposed between the two chambers. A first lead wire and a second lead wire extend through the second chamber. A first and second set of contact members are coupled to the first lead wire and second lead wire. A conductive object is disposed within the two chamber housing. The conductive object is disposed in the second chamber and couples a contact member from the first set and second set together to form an electrical communication therewith. The first set of contact members and the second set of contact members are splayed upon and substantially conforming to the contour of an interior surface of the second chamber; and alternate in configuration around the chamber. An airtight container is configured to enclose the two chamber housing. | 01-29-2009 |
| 20090277768 | Low Oil Trip Assembly for a Fault Interrupter and Load Break Switch - A fault interrupter and load break switch includes a trip assembly configured to automatically open a transformer circuit electrically coupled to stationary contacts of the switch upon the occurrence of a fault condition. The fault condition causes a Curie metal element electrically coupled to at least one of the stationary contacts to release a magnetic latch. The release causes a trip rotor of the trip assembly to rotate a rotor assembly. This rotation causes ends of a movable contact of the rotor assembly to electrically disengage the stationary contacts, thereby opening the circuit. The switch also includes a handle for manually opening and closing the electrical circuit in fault and non-fault conditions. Actuation of the handle coupled to the rotor assembly via a spring-loaded rotor causes the movable contact ends to selectively engage or disengage the stationary contacts. | 11-12-2009 |
| 20090294269 | OIL LEVEL DETECTING SWITCH - Oil level detecting switch, which detects an amount of lubricant oil stored in an oil pan, includes: a switch case having through-holes to permit entry and discharge of oil into and out of the switch case; a float of a spherical shape having smaller specific gravity than the oil and conductive outer surface and provided within the switch case for vertical movement in response to increase/decrease of the oil; and a plurality of fixed contacts provided on the bottom surface of the switch case such that the fixed contacts are placed in a conducting state by the float contacting the fixed contacts. | 12-03-2009 |
| 20150332882 | High Temperature Float Switch System - A high temperature float switch system for usage in high temperature environments. The high temperature float switch system generally includes a housing having a double wall design that houses a switch unit within the inner wall. The double wall design is comprised of an inner wall positioned within an outer housing. An intermediate space is preferably between at least a portion of the inner wall and the outer housing to receive any water vapor that passes through the outer housing thereby preventing the entry of the water vapor into the interior space of the inner wall. | 11-19-2015 |
| 20120125756 | FLOAT SWITCH - A float switch includes a floater ( | 05-24-2012 |
| 20130327625 | Magnetic Float Switch - Embodiments of the invention provide a float switch with a float housing having a magnetically-activated, hermetically-sealed reed switch secured within an interior cavity in a first orientation and a permanent magnet positioned in a second orientation. The permanent magnet is movable within a chamber in the interior cavity between a first activation position and a second non-activation position. For connection to a pump, electrical conductors extend from the float housing at one end and are electrically coupled to the reed switch. | 12-12-2013 |
| 20140183021 | FLOAT SWITCH DEVICE WITH MAGNETIC TONGUE - A float switch device includes a tubular member, a magnet tube and a magnetic switch. The tubular member has a first restriction portion and a second restriction portion formed on an external surface thereof. The magnet tube is sleeved over the tubular member, and is movable between the first restriction portion and the second restriction portion. The magnetic switch includes at least two metal tongues, where each of the metal tongues includes an interior contact point and an exterior contact point. The float switch device is placed in a casing in such way that the exterior contact points are electrically connected to an external apparatus. When the casing is tilted upward or downward by the change in water level, the magnet tube moves between the first and second restriction portions to switch the float switch device between the ON/OFF state. | 07-03-2014 |
