British merchant Peter Durand invented the tin can in 1810.
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| Number | Title | Issue Date |
| 4745938 | Outside seal and yoke valve A valve of the outside seal and yoke variety is provided, with a seal between a bonnet base and a valve body being axially spaced between a valve seating member and mating threads on the valve body and bonnet base. An end of at least one packing bolt is p... | 05/24/1988 |
| 4739788 | Faucet repair kit A faucet repair kit for replacing a faulty valve stem, handle and escutcheon. The kit includes an adapter ring for fitting over the replacement valve stem and including an adhesively backed ring for mounting directly on the tile work surrounding the stem ... | 04/26/1988 |
| 4718445 | Position indicator for a rotary valve actuator A position indicator for and method for applying the same to valve arrangements having a first strip attached to a first movable part and a second strip attached to a second stationary part of the valve arrangement. The strips have a line arranged down th... | 01/12/1988 |
| 4690164 | Valve assembly and method of making same A valve assembly for a fluid-containing tank and method of making same are provided wherein such valve assembly has a flow passage therethrough and such flow passage has a central rectilinear flow axis and an inlet and an outlet which have central axes co... | 09/01/1987 |
| 4640302 | Double disc gate valve An improved double disc gate valve having sealing rings which engage the internal discs of the reciprocating gate and in which one of its discs and its sealing ring can be replaced with only partial disassembly of the valve.... | 02/03/1987 |
| 4607422 | Method for locking a bonnet to a valve body A bonnet is locked to the body of a valve into which the bonnet screws by a sheet metal bonnet lock which includes a portion that will mate with facets on the bonnet or with the sides of the valve body. Another portion of the bonnet lock is then deformed ... | 08/26/1986 |
| 4531272 | Valve assembly method A method of making a replacement valve assembly, and the replacement valve assembly are provided in which an existing valve assembly is removed from the valve and used as a guide to make the replacement valve assembly. A threaded rod is cut to a length in... | 07/30/1985 |
| 4521948 | Method for fabricating a valve A segment is cut off a rotating hexagonal bar by opposed cutting tools which form a raised seat for a sealing gasket. The segment defines a hexagonal valve body into which coaxial larger-diameter and smaller-diameter holes are drilled from oppositely faci... | 06/11/1985 |
| 4516594 | Multi-part valve with a valve seat skeleton and cast valve body A multi-port valve comprises a valve seat skeleton and a valve body of readily castible material cast about the skeleton. The valve seat skeleton comprises a plurality of wear-resistant members each having a wear-resistant operative surface formed thereon... | 05/14/1985 |
| 4513769 | Method of manufacturing faucets and spouts, faucet inserts, and faucets and spouts manufactured by the method A method of manufacturing faucets and spouts, faucet inserts and faucets and spouts manufactured by the method. The faucet or spout includes an upper housing plate and a lower housing plate, a peripheral flange being provided on each of the housing plates... | 04/30/1985 |
| 4507841 | Removal and reinstallation of bottom entering agitator seals An improved method of removing a seal unit from a process vessel bottom entering agitator assembly and reinstalling a seal unit therein wherein a selectively elevatable table which is movably mounted on a pair of horizontal rails is utilized in lowering a... | 04/02/1985 |
| 4478240 | Air pilot valve controller A fluid actuated control device for operable connection with a hydraulic valve, such as a pilot valve, and comprising a coupler bolt secured directly to the valve spool, a fluid actuated cylinder and piston assembly connected with the coupler bolt for rec... | 10/23/1984 |
| 4469115 | Extended valve box and process for securing extension to valve box An extension is secured to a valve box in a roadway to be repaved by coating the valve box shoulder and the bottom of the extension with a thin layer of epoxy adhesive, placing a heated neoprene gasket on the shoulder, and setting the extension in place o... | 09/04/1984 |
| 4467823 | High pressure ball valve A ball valve comprises a cylindrical casing having an axial bore therethrough for passage of fluids. The ball is mounted between annular upper and lower seats, the latter being compressible and supported by an annular shoulder within the casing. The ball ... | 08/28/1984 |
| 4380251 | Valve construction having multiple piston means and method of making the same A valve construction having a housing provided with a chamber and ports leading to the chamber and having an axially movable piston unit disposed in the chamber to interconnect certain of the ports together in relation to the axial position of the piston ... | 04/19/1983 |
| 4357952 | Tubular valve device and method of assembly A tubular valve for controlling the flow of fluids includes an outer tubular shell having pairs of ports on diametrically opposed surfaces and an inner coaxial transfer tube having pairs of openings which are selectively rotated into or out of alignment w... | 11/09/1982 |
| 4356832 | High pressure bonnetless valve A method of removing from a valve, a backseat and packing means, without the necessity of first removing the packing means from the body of the valve so as to provide access for removal of the backseat, comprising the steps of: (a) providing a member and ... | 11/02/1982 |
| 4214599 | Device for use in connection with tapping off fluid from or filling fluid into a container A device for use in connection with tapping off fluid from or filling fluid into a container through an internally threaded tapping or filling hole in the container provided with an externally threaded generally cup-shaped plug having an outwardly open ca... | 07/29/1980 |
| 4142543 | Valve stem and disc combination and method of assembling same A valve stem and disc for a disc-type valve assembly are held together by a retaining ring and constructed such that they may be assembled inside a valve housing while avoiding the possibility of the retaining ring binding upon either the stem or disc dur... | 03/06/1979 |
| 4140144 | Method of providing interchangeable valve control mechanisms A valve control mechanism for operating a plurality of valves in a bank of valves which can be selectively operated by interchangeable lever arrangements one of which has a separate lever for each valve and another of which has a single lever for a pair o... | 02/20/1979 |
| 4100928 | Ball cock construction for controlling the level of liquids such as water in tanks Telescoped inlet and outlet tubes having a valve between upper extremities thereof are each formed with end telescoped, upper and lower parts, the tube upper parts being assembled movable together and the tube lower parts being assembled movable together ... | 07/18/1978 |