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 |
| 7111688 | Clamping well casings A clamp for clamping two concentric tubes, typically two concentric tubes in an oil or gas well. The clamp has two axially movable tapered components which can be pulled over one another in an axial direction to provide a contraction of internal diameter which grips... | 09/26/2006 |
| 5492373 | Wellhead flange for interconnecting a threaded wellhead and a flanged blowout preventer A wellhead flange assembly 12 is provided for interconnecting the threaded end of an upwardly projecting screwed wellhead 16 with a lower flange of the blowout preventer 24. The flange assembly comprises a threaded adapter 40 including a thin-walled porti... | 02/20/1996 |
| 5209522 | Anti-extrusion apparatus for an inwardly compressed seal An anti-extrusion apparatus for a seal sealing on the outside diameter of a conduit. The anti-extrusion device is positioned at each end of the seal and includes a metal ring engaging an end of the seal in which the ring has a wedge shaped inside. A plura... | 05/11/1993 |
| 5135266 | Casing slips and seal member A method and an apparatus for attaching an upper wellhead housing to casing employs a combination slip and seal assembly. An annular metal slip member is supported by a lower wellhead housing. The slip member has a conical section with an annular external... | 08/04/1992 |
| 5056830 | Flanged repair coupling for pipeline service A flanged coupling for the repair of pipe lines which is engagable over an open pipe. A piston is actuated by drawing two flanges together and setting a slip and a packing to anchor and seal the coupling unit to the pipe. Tension and compression in the pi... | 10/15/1991 |
| 4921045 | Slip retention mechanism for subterranean well packer A slip retention mechanism for a packer or hanger for a subterranean well comprises a slip retention sleeve disposed in surrounding relationship to a tubular body on which cone elements are mounted for axial movement. Segment-shaped slips are mounted in t... | 05/01/1990 |
| 4396066 | Method and apparatus for effecting sealed connection to upstanding irregular end of tubing positioned in a well An improved apparatus and method are provided for effecting a sealed connection to an upstanding end of a tubular member in a subterranean well where the upstanding end of the tubular member is of irregular configuration at one end. A connecting housing i... | 08/02/1983 |
| 3994517 | Pipe anchor for wellhead assemblies A pipe anchoring device including an annular segmented support mounted in the bowl of a wellhead assembly. Each of the segments has a generally cylindrically shaped front face with a plurality of upwardly extending teeth thereon to engage a pipe, and a fr... | 11/30/1976 |
| 3977702 | Pipe coupling with retrievable setting means A coupling apparatus for making a coupling to a pipe or the like and which apparatus is provided with detachable and removable setting means in the form of hydraulic cylinders which may be reused to subsequently actuate other couplings. The coupling inclu... | 08/31/1976 |
