Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 4180102 | Sewer connector The sewer connector comprises an axially compressible hose and a storage container for maintaining the hose or any portion thereof in the compressed state. The container consists of a pair of semi-cylindrical housing portions having soft foam rubber strip... | 12/25/1979 |
| 4161193 | Open ducts designed for ready disassembly and re-use Open ducts for ground heating of hothouses consist of flattened tubes of flexible material such as plastic. The tubes are slit open lengthwise, folded back over tensioned cords and secured by fasteners so as to form the edges of the ducts, the two ends of... | 07/17/1979 |
| 4158541 | Apparatus for calcining green coke A hollow, high-temperature alloy pipe with motive means to move air there through is employed as a support structure for supporting the feed pipe in a conventional coke-calcining apparatus. The support pipe is horseshoe shaped, and the feed pipe is receiv... | 06/19/1979 |
| 4148260 | High speed transit system A high speed ground transportation system, is suspended in an underground vacuum tube by a frictionless magnetic suspension system and propelled by gravity. The tubes are suspended inside deep underground tunnels from anchor points near each adjacent stat... | 04/10/1979 |
| 4148341 | Long-distance heating conduit A long-distance heating conduit comprising one or more tubes which carry the heating medium, are laid in the conduit and are surrounded individually or jointly by at least one layer of heat-insulating material and are covered by at least one cover foil wh... | 04/10/1979 |
| 4146203 | Pipe hanger supports A pipe hanger assembly having a pipe supporting and thermal insulating housing suspended in a hanger, the housing having a cylindrical outer surface matching the size and configuration of the adjacent pipe insulation jacket, and having a basically cylindr... | 03/27/1979 |
| 4134563 | Pipe support A pipe support for high temperature, thin-walled piping runs such as those used in nuclear systems. A section of the pipe to be supported is encircled by a tubular inner member comprised of two walls with an annular space therebetween. Compacted load-bear... | 01/16/1979 |
| 4121796 | Supporting elements for ducting A supporting element for use in supporting ducting, particularly air ducting used in air-conditioning installations, comprises a metal strip shaped with transverse bends. The metal strip has a first minor extent of its length formed as curved bearing surf... | 10/24/1978 |
| 4113454 | Coating filter, separator and collector system A method of and apparatus for collecting overspray materials from an article coating station wherein a velocity differential in the air stream of the duct system employed selectively transports and effects removal of solids from the overspray materials. A... | 09/12/1978 |
| 4078584 | Pipe system for collecting petroleum from off-shore wells located at great depths Pipe system for collecting petroleum from off-shore wells located at great depths comprises flexible pipes connecting well head to a float comprising an at least partially submerged caisson which contains air so as to maintain the flexible pipes under ten... | 03/14/1978 |
| 4077592 | Supporting of ducting A method of supporting rectangular-sectioned ducting according to which the ducting is supported at each of a number of spaced positions along its length by means of a pair of opposed angle elements in which the ducting is directly or indirectly seated at... | 03/07/1978 |
| 4023756 | Thermopneumatic support device A thermopneumatic support device for providing support over a range of positions for objects, such as high temperature steam piping, subject to temperature changes and thus to changes in position resulting from thermal expansion or contraction. The device... | 05/17/1977 |
| 4013137 | Engine air intake system An intake air system for an internal combustion engine having an upright stack mounted on vehicle structure, as a hood, with a stack connecting assembly mount structure having a first plate secured to the stack and a second plate accommodates nut and bolt... | 03/22/1977 |
| 4013098 | Inlet pipe An inlet pipe for use in a thermal reactor employed in an automotive vehicle engine or the like, which inlet pipe is provided with a flange portion having a plurality of cut-out portions or notches formed at regular intervals on the outer periphery of the... | 03/22/1977 |
| 3965938 | Pipe restraint device An expendable restrain device including restraint members positioned in spaced relation around a pressure pipe to limit pipe movement in the event of pipe rupture, the restraint members being designed to undergo plastic elongation to thereby absorb the en... | 06/29/1976 |
| 3960064 | Tall stack construction A tall stack construction which may be used for the discharge of products of combustion or may be used as a flare stack with a burner at the top end for combustion of waste products from oil refineries or other chemical processes, the stack pipe being sup... | 06/01/1976 |
