Quotables
"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7232971 | Circuit breaker A circuit breaker includes a shell, a movable press strip, a metal strip, a C-shaped plate spring, and three conductors. A first and a second conductor are inserted through the bottom of the shell, respectively have an upper end extending up in the shell, with a fir... | 06/19/2007 |
| 6707372 | Thermal switch containing preflight test feature and fault location detection An integral resistance element combined with a snap-action thermal switch and coupled to an output thereof, the snap-action thermal switch being structured in a normally-open configuration. The resistance element and the snap-action thermal switch share one or more ... | 03/16/2004 |
| 6703917 | Resettable fuse/circuit interrupter with visual fault indication A circuit interrupter device protects a load circuit from excessive, or overloading levels of current, provides a visual indication of circuit overload and open circuit, and can be reset. A multi-metallic heat reactive strip is snapped by an overload curr... | 03/09/2004 |
| 6628192 | Circuit breaker flower A push-pull circuit breaker is provided primarily for use in aircraft; wherein, the activation of the circuit breaker is made significantly more noticeable by the addition of a "flower" device. Specifically, as the center post of the circuit breaker deplo... | 09/30/2003 |
| 6570480 | Circuit breaker A circuit breaker includes a shell with a hollow button at the top. The button has an indicator light received therein and a central tab extending downward. A first blade, a second blade and a grounding prong extend out of the shell through the bottom of ... | 05/27/2003 |
| 6542061 | Indicator light for use in combination with an electrical circuit protector or fuse An indicator light which when installed in combination with either a circuit protector or a fuse, etc., will automatically illuminate to notify a user that an electrical overload has occurred.... | 04/01/2003 |
| 6166618 | Electrical safety receptacle An electrical safety receptacle (10) including a dielectric housing (12), first electrical contacts (14) in the housing for electrical connection to one side of an electrical power line, second electrical contacts (16) in the housing for electrical connec... | 12/26/2000 |
| 6100808 | Break display lamp of a socket A socket has a hollow base casing, and an upper casing engaging with the hollow base casing. The upper casing has an oblong hole and a pair of slots. The hollow base casing receives a first conductive blade, a second conductive blade, a fixed plate, and a... | 08/08/2000 |
| 6060990 | Mounting arrangement for a heat alarm A heat alarm for an electric panel cabinet that mounts a heat sensor in contact with a face surface of the electric panel cabinet to monitor the temperature of the cabinet and sound an alarm if the temperature of the cabinet exceeds an upper temperature l... | 05/09/2000 |
| 5936508 | Fuse state indicator A device for indicating the conducting state of a fuse includes a heat generating material for generating heat in response to an electrical input and adapted to be coupled electrically in parallel with a fuse, and a temperature responsive material thermal... | 08/10/1999 |
| 5880667 | System for indicating high temperature event in an electrical power equipment enclosure An indicator movable between a set and an alarm position is latched in the set position by a thermally responsive latch disposed to sense ambient temperature within electrical equipment. If a high temperature event occurs, the latch releases the indicator... | 03/09/1999 |
| 5825294 | Thermostatic heat detector A heat detection and alarm unit is provided including a housing with a front face, a rear face, a top face, a bottom face and a pair of side faces coupled therebetween defining an interior space. A speaker is situated within the interior space of the hous... | 10/20/1998 |
| 5439169 | Temperature regulating control device and method of making the same A temperature regulating control device and method of making the same are provided, the device comprising a housing, a movable selector unit carried by the housing for selecting a temperature the control device is to tend to maintain, and an ambient tempe... | 08/08/1995 |
| 5154226 | Automatic changeover thermostat with single bi-metal and common set lever having individual heat and cool setpoint indicators A single bimetal automatic changeover thermostat has heating, cooling and changeover switches mounted to the bimetal. A single control point adjustment lever for rotating the bimetal has separate shaped heat and cool set point indicators which are movable... | 10/13/1992 |
| 4695829 | Temperature level indicating device and method of making the same A device for indicating that a sensed temperature has reached a certain selected level and method of making the same are provided, the device comprising a housing carrying an electrical switch unit for operating an indicator to one condition thereof when ... | 09/22/1987 |
| 4190764 | Control system and method and control device therefor A control system having a control unit provided with a single thermostatically operated control device for operatively interconnecting a heater to a source of energy when the output temperature effect of the heater is below a predetermined setting of a se... | 02/26/1980 |
| 4044348 | Circuit energization indicator with thermal timing means to maintain the indication for a predetermined time after de-energization A thermal timer produces a timed duration output in response to a thermal input to a thermal storage device and a thermal energy leakage parameter from that storage device. The storage device preferably is a metal slug positioned in a silica aerogel insul... | 08/23/1977 |
