Did You Know...
...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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 |
| 7203040 | Method and circuit breaker for reducing arc flash during maintenance in a low voltage power circuit Maintenance trip functions override the normal or specified trip functions of a low voltage circuit breaker to reduce pickup currents and/or time delays to effect faster trips, which reduces arc energy produced by faults during maintenance or testing on a live circu... | 04/10/2007 |
| 7019230 | Racking device and power module therefor A racking device performs a circuit breaker racking operation. The racking device includes a base with wheels and a brake to facilitate moving the racking device and positioning it with respect to a switchgear cabinet. An elongated tubular member extends substantial... | 03/28/2006 |
| 4464703 | Metal clad switchgear having exterior ventilation shafts There is proved by this invention a novel metal clad switchgear construction wherein the exterior walls are recessed to form areas disposed to provide ventilation shafts between adjacent units and increased access to the primary terminals.... | 08/07/1984 |
| 4126344 | Compressive bumper assembly A compressive bumper assembly is disclosed for an electrically powered vehicle in which a bumper is resiliently supported in spaced relationship from the vehicle proper by means of a plurality of springs. The maximum displacement of the bumper from the ve... | 11/21/1978 |
| 4062465 | Powered loading system A powered loading system is disclosed for loading and unloading a heavy load-carrying module onto a vehicle for transport. The module is supported for movement on casters and, additionally, it includes rollers and a slotted probe member. The transport veh... | 12/13/1977 |
