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4114655 |
Protective plug for the ends of tubular cores
A cylindrical plug bounded by flat leading and trailing faces and fabricated of interadhered layers of annular sheets of corrugated paperboard is provided for use in protecting the ends of tubular...
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4092193 |
Method for joining substrates utilizing coupling means
Described herein are coupling means for joining substrates, for example, tubular articles, which include an inner member, having disposed thereon a fusible agent for binding the substrates...
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4022935 |
Method of spraying sealing composition to interior walls of storage tank
This specification describes a process and apparatus for closing leaks and spraying a sealant composition to interior walls of an underground gasoline tank such as is used in retail gasoline...
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3968552 |
Method and apparatus for forming plastic lined junction in lined pipe
Disclosed are methods and apparatus for effecting a fully lined junction between the end faces of two joints of plastic lined pipe. An annular groove is formed in the outer surface of the pipe at a...
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3962767 |
Method for repairing a heat exchanger tube
A method of repairing a tube in a heat exchanger by severing the tube and welding a sleeve inside the tube.
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3946761 |
Packer for sealing pipe leaks
A packer apparatus for the internal sealing of pipe leaks having a cylindrical structure and a single sleeve located on the exterior of the cylinder. The single sleeve has a pair of inflatable...
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3946125 |
Method for internally coating ducts with synthetic resin
A method of and an apparatus for the internal coating of ducts with a synthetic resin, especially long steel pipes or tubes, in which gas-entrained synthetic-resin particles are passed through the...
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3894131 |
Poly(urethane-urea) sealants and sealing underground structures therewith
A water-bearing structure, such as a sewer, water line or aqueduct, is sealed to prevent or minimize the leakage of water into or from said structure by placing at the locus of said leakage a fluid...
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3880176 |
Apparatus for sewer treatment to kill tree roots and other organic growth therewithin
A composition for killing plant roots inside sewers, comprises an alkali metal alkyl dithiocarbamate in an amount of about 30%, a biodegradable liquid nonionic surfactant in an amount of about 12%,...
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3856905 |
ORIENTED PLASTIC TUBE
Thermoplastic tubing is prepared having radial orientation by deforming tube radially with little or no axial deformation. Such tubes are particularly useful for lining applications such as pipe.
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3781966 |
METHOD OF EXPLOSIVELY EXPANDING SLEEVES IN ERODED TUBES
The method comprises explosively expanding a first metallic sleeve into engagement with a severely eroded section of a tube and thereafter explosively expanding a second metallic sleeve of...
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3778539 |
PLUG HAVING INDEPENDENT AXIAL AND LATERAL COMPRESSION MEANS
Plug having independent axial and lateral compression means for plugging holes in a container, a housing and the like is disclosed. The plug complies to irregular surfaces and reacts in three...
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3654014 |
PROCESS FOR PROTECTING A WALL SUBJECTED TO WEAR
This invention relates to a process for protecting a non-flat wall exposed to wear consisting in providing a coating made of a mortar containing synthetic resin on at least part of the surface to...
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3424203 |
IN-PLACE REPAIRS FOR CONCRETE IRRIGATION PIPE
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3422856 |
PLASTIC-LINED PIPE AND METHOD OF PRODUCING
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3390442 |
Method for flanging thermoplastic line pipes
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3388931 |
Tube plate seal
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3354955 |
Method and apparatus for closing and sealing openings in a well casing
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3335484 |
Method and apparatus for flanging thermoplastic lined pipe
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3315348 |
Vessel lining method
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3307996 |
Method for placing a protective coating on the interior of a pipe
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3297092 |
Casing patch
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3228096 |
Method for preparing lined piping flanged pipe joints
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3117904 |
Apparatus for patching plastic pipe
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3070130 |
Pipe line repair with resilient bellows sleeve
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3044920 |
Repair of thermoplastic materials
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3028915 |
Method and apparatus for lining wells
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2900280 |
Formation of layers of photo-conductive materials
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2851760 |
Patching of by-product coke oven tubular surfaces
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2815253 |
Bearing liner
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2794758 |
Method and apparatus for in-place lining of a pipeline
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3758361 |
Title is not available
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3566607 |
Title is not available
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3692619 |
Title is not available
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3662045 |
Title is not available
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0991256 |
Title is not available
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3560295 |
Title is not available
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