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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7154061 | Interrupter assembly for a circuit breaker A preferred embodiment of an interrupter assembly for a circuit breaker includes a first contact, a conductor, and a second contact mounted on the conductor. The second contact and the conductor are movable in relation to the first contact between a first position w... | 12/26/2006 |
| 6188035 | Electrical contact wear and temperature indicator The design of electrical switches that operate under load (with current flowing) requires replacement of the electrical contact after erosion and wear experienced by arcing and raised temperatures reduce functionality below acceptable limits. A quantity o... | 02/13/2001 |
| 6023036 | Electrical contact wear and temperature indicator The design of electrical switches that operate under load (with current flowing) requires replacement of the electrical contact after erosion and wear experienced by arcing and raised temperatures reduce functionality below acceptable limits. A quantity o... | 02/08/2000 |
| 4685019 | Controlled electrical contacts for electrical switchgear Most contacts that are used in electrical switchgear are prone to erosion due to electrical arcs that are developed at the make and break of a circuit. Arcing is one of the major problems that can cause catastrophic failure of switchgear. In accordance wi... | 08/04/1987 |
| 4621561 | Switch for inductive energy store transfer circuit A switch for use in an inductive energy store transfer circuit utilizes a quantity of electrically conductive liquid bidirectionally flowable between a position that establishes electrical connection between electrodes and a position that opens electrical... | 11/11/1986 |
| 4617542 | High voltage switching device A switch having gold-plated contacts on which is formed a gold-mercury amalgam, at least the contacts being immersed in a totally fluorinated hydrocarbon fluid.... | 10/14/1986 |
| 4152560 | Stationary contact structure for high voltage gas blast circuit interrupter with deformed slotted contact finger configuration A stationary contact structure for a gas blast circuit interrupter consists of a conductive hollow cylinder which is slotted to define contact fingers, and the ends of the contact fingers are inwardly deformed so that the ends of the fingers closely abut ... | 05/01/1979 |
| 4048457 | Circuit-interrupter grid structure for an oil-break circuit interrupter An oil-type circuit-breaker has an improved grid structure for effecting quick extinction of the arc, which is established and lengthened within the grid structure by the separation of the rod-shaped movable contact downwardly away from the stationary-con... | 09/13/1977 |
