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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 |
| 6938876 | Ball valve with retractable seals and method of replacement thereof A ball value has a valve body defining a cavity, a ball closing component disposed within the cavity through a cavity opening, a cover, and seal assemblies having seating rings with seals disposed engaging both sides of the ball closing component. The seating rings ... | 09/06/2005 |
| 6923429 | Electrical grounding assembly for control valve An electrical grounding assembly for a control valve providing a shared electrical connection between a valve body and valve trim. An elastic grounding connector having an elastic region and an electrically conductive surface is placed between the valve body and the... | 08/02/2005 |
| 6913034 | Emergency shutdown valve actuator An emergency shutdown valve actuator includes a support and a fluid activated actuator drive secured to the support. Clamps are provided for clamping the support onto a tubular member. A drive key is provided which is adapted to couple the actuator drive and a femal... | 07/05/2005 |
| 5954088 | Ball valve adapted to couple with an output drive shaft of a valve control device A ball valve includes a hollow valve body for mounting a valve ball therein. A drive transmitting stem has a proximate end coupled to the valve ball, and a distal end extending outwardly of the valve body for coupling with an output drive shaft of a valve... | 09/21/1999 |
| 5551479 | Combination ball and check valve A combustion ball and check valve for control of fluids through a conduit includes a unitary valve housing having a longitudinal opening extending therethrough, a ball valve closure member disposed within the housing adjacent a first end thereof and a one... | 09/03/1996 |
| 5531244 | Hemispherical ball valve A ball valve for controlling fluid flow comprises a housing with a chamber therein and a fluid flow passage therethrough having an inlet and outlet portion to and from the chamber adjacent the lower end of the housing. An opening in the upper end of the h... | 07/02/1996 |
| 5313976 | Top entry ball valve and method of assembly A top entry floating ball valve (10) and method of assembly including a downstream metal seat (62) mounted within an annular recess about a downstream flow passage (22) and an upstream metal seat (80) urged by a Belleville spring (78) into engagement with... | 05/24/1994 |
| 5251657 | Top-entry check valve with cartridge secured by projections A top-entry check valve having a seat, cage, disc and removable bonnet utilizes projections to prevent movement of the seat, cage and disc in the downstream direction. An annular shoulder in the valve body prevents movement of the seat, cage and disc in t... | 10/12/1993 |
| 5117858 | Top entry ball valves with cam adjustable seats A top entry ball valve comprises a housing having an interior cavity sufficiently large to receive a conventional ball and conventional seat rings through an opening in the housing. After the ball/seat package has been inserted into the cavity, a cam arra... | 06/02/1992 |
| 4953587 | Ball valves for pipelines A ball valve is provided in which an outer housing (1) can be left in a pipeline during servicing and a sub-assembly can be removed as a unit from the top of the outer housing (1). The sub-assembly comprises an inner housing (8) in which a ball member 17 ... | 09/04/1990 |
| 4867414 | Ball valve A top open ball valve assembly which includes a pair of camming plates, one at the top and one at the bottom of the plug. The camming plates are oval and in their minor axis are clear of the floating valve seats. There are lost motion slots to allow the p... | 09/19/1989 |
| 4641681 | Clamp for use with top entry ball valve A clamp for use with a top entry type ball valve having a valve casing, a valve body, a seat ring, and a seat ring assembly consisting of another seat ring, a belleville spring and a seat ring holder. The clamp has a pair of clamping plates, a clamping bo... | 02/10/1987 |
| 4635675 | Flat sided ball valve A top-entry, single-body ball valve is provided which may easily be assembled or disassembled. The valve includes a rotatably mounted ball member having a passage extending therethrough, a valve seat for sealingly engaging the ball member, the ball member... | 01/13/1987 |
| 4632140 | Top entry ball valve A ball valve has a valve body with a bonnet bore communicating with a through fluid bore. An unyielding valve seat is fixed in the valve body at a location surrounding the axis of the fluid bore. A bonnet with a stem bore extending therethrough is receive... | 12/30/1986 |
| 4601308 | Ball valve with seat loading mechanism A top-entry ball valve 10 comprising a valve body 12 having a chamber 13, flow passages 14, 15, a ball 20 rotatably mounted in the chamber for movement between open and closed positions relative to the passages, and a pair of seat assemblies 50 at opposed... | 07/22/1986 |
| 4566482 | Top entry trunnion ball valve A Top Entry Trunnion Ball Valve is provided having a valve body forming seat recesses with seat members movable disposed therein and urged towards sealing engagement with a spherical valve member by spring members and by differential pressure induced forc... | 01/28/1986 |
| 4390039 | Valve assembly and disassembly device A device for enabling the assembly and disassembly of a top entry ball valve takes the form of a pin formed from rod-like material with a conical end. When the pins are inserted into the top surface of the valve housing the spring loaded valve seats are f... | 06/28/1983 |
| 4388945 | Valve assembly and disassembly device A device for enabling the assembly and disassembly of a top entry ball valve takes the form of a pin formed from rod-like material with a conical end. When the pins are inserted into the top entry of the valve housing the spring loaded valve seats are for... | 06/21/1983 |
| 4342330 | Ball type valve having improved redundant sealing system An improved ball-type valve apparatus adapted for use in flowlines which provide a straight through flow path which minimizes flow turbulance and flow resistance in either direction through the valve housing. The ball is rotated by a crank between the ope... | 08/03/1982 |
| 4262691 | Cam means for ball valve seat rings A ball valve in which cams (82, 84) are mounted on the ball member (34) to engage spring biased seat rings (30, 32) and cam the seat rings to a retracted position at which the seat rings are retained. The ball valve has a removable cover plate (16) so tha... | 04/21/1981 |
| 4217923 | Ball valve with readily removable ball and seats for high temperature environment A ball valve assembly in which the ball and valve seats are readily removable from the valve housing, the valve being designed for a high temperature environment. The valve seats cooperate with seat supports and the ball, each of two valve seats comprisin... | 08/19/1980 |
