Bizarre Patents
A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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 |
| 7091431 | Disconnect switch A switch has a first electrical terminal, a second electrical terminal spaced from the first electrical terminal and an elongate conductive switch blade for bridging the terminals. The switch blade has a first end portion pivotally connected with the first electrica... | 08/15/2006 |
| 6998547 | On-load tap changer for a sequence switch A load changeover switch for a tap changer with two permanent main contact pairs for each phase to be switched, wherein the fixed contacts thereof are each time bridged over by a movable permanent main contact. The fixed permanent main contacts consist of a pluralit... | 02/14/2006 |
| 5457292 | Load interrupting switch for live front padmounted switchgear A load interrupter device is provided for live front padmounted high voltage switchgear unit wherein circuit interruption is independent of the speed at which a lineman opens the switch of the switchgear. The interrupter includes an insulating body having... | 10/10/1995 |
| 5382764 | Vertically-opening section swtich having a rocking column A high voltage section switch of the type includes a female current terminal situated at one end of a first vertical insulating column, a control blade which is hinged at one end of a second vertical insulating column and which carries at its first end a ... | 01/17/1995 |
| 4859819 | Staged opening switch A staged switch for conducting a large electrical current for an indefinite time period and then rapidly switching the current into a load circuit. The switch comprises a first stage which can conduct a large electrical current for an indefinite time peri... | 08/22/1989 |
| 4777334 | Porcelain clad, gas, circuit interrupter operation rod structure A porcelain clad gas circuit interrupter is disclosed which includes: an arc extinguishing porcelain tube defining therein an arc extinguishing chamber in which a stationary and a movable contact are disposed, the arc extinguishing chamber being filled wi... | 10/11/1988 |
| 4752659 | Arc interrupter The rating of an arc interrupter is improved by having a movable contact assembly, which is engageable with and completely disengageable from a fixed contact in make and break positions, respectively, consisting of two main current carrying members the fi... | 06/21/1988 |
| 4700028 | Portable breakload tool A portable breakload tool which permits opening of electric devices under load so that the opening is made without apparent external arc. The tool includes an arch quenching chamber in which two fixed contacts and a rotatable contact are positioned. The m... | 10/13/1987 |
| 4562320 | Current-limiting device Electric current is limited in a current interruption device including two stationary contacts with terminals and a bridging contact movable toward and away from a position bridging the stationary contacts by a conductor connected to each of the stationar... | 12/31/1985 |
| 4510359 | Circuit interrupter having improved closing resistor control means Sporadic malfunctions of the closing resistor mechanism employed in a power circuit breaker to connect a resistor in parallel with the breaker contacts (prior to closing of such contacts) is prevented by providing an improved control and actuating means f... | 04/09/1985 |
| 4417112 | Load break switch with current quenching device The pivotal switching arm of a "swivel post" type load break switch carries, in addition to a blade contact, a U-shaped sliding block type conducting driver which has an elongated elastically expandable slot that engages the ratchet head of the rectilinea... | 11/22/1983 |
| 4398072 | High-voltage device Erosion- and decomposition-caused deterioration of exterior regions of an arc-extinguishing housing included in a high-voltage switch is eliminated or reduced. The switch also includes a stationary contact within a sealed chamber defined by the housing an... | 08/09/1983 |
| 4263491 | Method for checking electric contacts of an enclosed-type switching device and an auxiliary apparatus for use with the switching device to use the method In an enclosed-type switching device having at least a pair of electric contacts, a method for checking the contacts without visual inspection wherein with the contacts closed, the resistance value between outer terminals connected to the contacts is meas... | 04/21/1981 |
| 4114003 | Quick-acting movable operating-column tripping device A quick-acting movable-column tripping device is provided as an optional feature of either circuit-interrupters, supported by upstanding insulating column structures, or, alternatively, in connection with circuit-interrupters having a serially-related dis... | 09/12/1978 |
| 4112274 | Electrical control An electrical control for providing a graduated change in the magnitude of electrical energy transferred from a source of electrical energy to a device driven thereby including a mount, a plurality of load contacts disposed in fixed relation on the mount,... | 09/05/1978 |
| 4103129 | High voltage circuit interrupter switch arrangement A high voltage circuit interrupter is enclosed within an integral insulating housing that includes an operating mechanism enclosing portion, an insulator portion, and a muffler portion. The integrally formed insulating housing is formed to provide a groov... | 07/25/1978 |
| 4011425 | Arc chute extension for increased interruption rating A molded case circuit breaker having a spaced plate arc chute for each pole thereof, with each arc chute having a V-shaped mouth region at one end and having separable arcing contacts positioned at the mouth region and having a space defined opposite the ... | 03/08/1977 |
| 3980851 | High amperage switching apparatus with bi-metallic arcing contacts In a high amperage switching apparatus comprising multiple, spaced apart, stationary first terminals, each in interruptable circuit communication with corresponding multiple, spaced apart, stationary second terminals, said communication being by movable k... | 09/14/1976 |
