Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7380590 | Rotating pressure control head A Rotating Pressure Control Head (RPCH) with a rapid engagement mechanism is disclosed. The RPCH comprises an upper body and a lower body. The rapid engagement mechanism allows the upper body to be quickly disengaged from the lower body and replaced with a new upper... | 06/03/2008 |
| 7316430 | Connecting mechanism A connecting mechanism for two parts, which are at least partially insertable into one another, presents a cam-operated component, which runs on bearings and which is adjustable between a passive and an active position, on the one part, for shifting a number of cont... | 01/08/2008 |
| 7305963 | Blade-thru-slot combustion engine, compressor, pump and motor This is simple and efficient rotary machine that can be implemented as compressor, pump, motor and mainly as internal combustion engine. The engine comprises a housing, a rotor(s) with a radial blade(s), a chamber(s) swept by the blade(s), an intersecting planar val... | 12/11/2007 |
| 7284602 | Self-aligning stuffing box A self-aligning stuffing box having a spherical joint between the upper and lower portions of the housing permits universal movement of the upper portion relative to the lower portion to permit a rod to pass through the bore if the axis of the rod is misaligned rela... | 10/23/2007 |
| 7240727 | Armored stripper rubber An armored stripper rubber is provided that protects the drillstring bore of the stripper rubber from substrate infiltration, yet pivotally dilates to facilitate the passage of drillstring components through the bore while effectively maintaining a fluid-tight seal.... | 07/10/2007 |
| 7237618 | Stripper rubber insert assembly A high-pressure stripper rubber provides inserts and support members that cooperatively support the profile of the rubber against elastic deformation. The inserts dynamically cooperate to resist elastic deformation of the rubber due to down hole pressure. The stripp... | 07/03/2007 |
| 7004444 | Rotating blowout preventer with independent cooling circuits and thrust bearing A rotary blowout preventer has a first and a second fluid circuit. Each of the fluid circuits are defined into and out of a stationary body and between the stationary body, a rotating body, and two seals. The first fluid circuit is physically independent from the se... | 02/28/2006 |
| 6910531 | Rotating drilling stripper A stripper assembly for sealing around a drill pipe includes an outer housing having a lateral outlet. The outer housing is mounted at an upper end of a well for receiving an upward flow of drilling fluid and diverting the drilling fluid through the lateral outlet. ... | 06/28/2005 |
| 6896076 | Rotating drilling head gripper A rotating drilling head seals around drill pipe while drilling. The drilling head has an outer housing that mounts to the rig floor. An inner housing is rotatably mounted in the outer housing. An annular bladder is mounted in the inner housing. An annular elastomer... | 05/24/2005 |
| 6749172 | Rotating blowout preventer with independent cooling circuits and thrust bearing A rotary blowout preventer has a first and a second fluid circuit. Each of the fluid circuits are defined into and out of a stationary body and between the stationary body, a rotating body, and two seals. The first fluid circuit is physically independent from the se... | 06/15/2004 |
| 6378613 | Large bore subsea Christmas tree and tubing hanger system A concentric tubing hanger having a radially offset tubing annulus passage closeable by a remotely operable valve, preferably a pressure balanced, hydraulically-operated shuttle valve positioned at an upper end of the tubing annulus passage. The tubing ha... | 04/30/2002 |
| 5901964 | Seal for a longitudinally movable drillstring component A stripper rubber for oil and gas wells, water and geo-thermal wells, having an interior surface design which includes a circular, convex knee portion in the throat area of the stripper rubber to provide additional support to the stripper rubber during in... | 05/11/1999 |
| 5662171 | Rotating blowout preventer and method The rotatable blowout preventer 10 includes a stationary outer housing 12 and a rotatable inner housing 38 having a curved surface 42 thereon defining a portion of a sphere. An annular packer assembly 46 includes spherical packer elements for sliding enga... | 09/02/1997 |
| 5647444 | Rotating blowout preventor A rotating blowout preventor having at least two rotating stripper rubber seals which provide a continuous seal about a drilling string having drilling string components of varying diameter. A stationary bowl is designed to support a blowout preventor bea... | 07/15/1997 |
| 5588491 | Rotating blowout preventer and method The rotatable blowout preventer 10 comprises a stationary outer housing 12 and a rotatable inner housing 38 having a curved surface 42 thereon defining a portion of a sphere. An annular packer assembly 46 includes spherical packer elements for sliding eng... | 12/31/1996 |
| 4825938 | Rotating blowout preventor for drilling rig A diverter or rotary drill head has a rubber stripper assembly mounted to a stinger flange. An annular retaining collar is releasably received within the upper marginal end of the drill head main body. the retainer collar is axially spaced from a shoulder... | 05/02/1989 |
| 4531580 | Rotating blowout preventers An improved rotating blowout preventer having a sealing assembly which is latched in place in a body with an upper latch engaging the non rotating body and lower latch engaging in a groove to engage the rotating portion, a sealing assembly having an impro... | 07/30/1985 |
| 4500094 | High pressure rotary stripper A rotating blowout preventor having only one moving part which cooperates with an upper bushing to provide resistance to upthrust and downthrust. The apparatus includes provisions for interaction to occur between the rubber of the stripper and the inside ... | 02/19/1985 |
| 4448255 | Rotary blowout preventer A rotary blowout preventer having a radially compressible packing to be sealingly engaged with and rotated by a drill pipe or kelly and a hydraulically actuated wedging piston for compressing the packing is provided with a rotatable bearing support which ... | 05/15/1984 |
| 4441551 | Modified rotating head assembly for rotating blowout preventors Improvements in the rotating head assembly of a rotating blowout preventor. The rotating head assembly includes a stripper rubber which has an upper annular area attached to the lower annular end of a metal support member. The support member extends upwar... | 04/10/1984 |
| 4398599 | Rotating blowout preventor with adaptor A rotating blowout preventor apparatus includes an adaptor located at the upper end of a main body, and a rotating head assembly which is removably received by the adaptor. The adaptor is longitudinally split to provide two segmented circles which are hin... | 08/16/1983 |
| 4367795 | Rotating blowout preventor with improved seal assembly A rotating blowout preventor having a rotating head to which a stripper assembly is attached. The stripper rubber of the stripper assembly has an axial passageway through which a rotating member is telescopingly received. The stripper rubber has an upper,... | 01/11/1983 |
| 4361185 | Stripper rubber for rotating blowout preventors An improved stripper rubber for a rotating blowout preventor. The stripper rubber has an upper annular area attached to the lower end of a metal support member. The support member extends upwardly into fixed relationship respective to part of the rotating... | 11/30/1982 |
| 4312404 | Rotating blowout preventer Improved rotating blowout preventer including a stationary housing, a bearing housing and a bearing means assembly and seal assembly for mounting an internally located, rotating sleeve for rotating, sealable movement within the bearing housing. The bearin... | 01/26/1982 |
| 4208056 | Rotating blowout preventor with index kelly drive bushing and stripper rubber A rotating blowout preventor having a special stripper rubber with reinforcement means incorporated therein in indexed relationship with a kelly drive bushing so that when the kelly is telescopingly received through the rotating blowout preventor, the cor... | 06/17/1980 |
| 4157186 | Heavy duty rotating blowout preventor A heavy duty rotating blowout preventor which has a main outer support housing by which it can be affixed to the uppermost end of a casing, or to the uppermost end of a stack of tools affixed to the upper end of a casing. A rotating seal assembly includes... | 06/05/1979 |
| 4154448 | Rotating blowout preventor with rigid washpipe A rotating blowout preventor of simplified construction which requires no kelly drive bushing, and which has a rotating external housing formed at the upper marginal end thereof within which the main bearings and seals are isolated. The external housing r... | 05/15/1979 |
| 4098341 | Rotating blowout preventer apparatus Rotary blowout preventer apparatus includes: (a) an upright tubular body adapted to receive an annular packer to be constricted about a rotating well element, (b) and a rotary annular assembly carried in the body to rotate relative thereto and with the packer ... | 07/04/1978 |
