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| Number | Title | Issue Date |
| 4044994 | Pressure loaded sealing arrangement There is disclosed a unique sealing arrangement for a valve of the type which includes a first element defining a valve body having a fluid passage extending therethrough, with a second, flow control element rotatably disposed in said passage for controll... | 08/30/1977 |
| 4038358 | Method of making a valve A valve includes a central valve component with an integral housing molded therearound. During the molding of the housing a seal is held against the valve component by spaced fingers of a tool. After molding is complete and the tool is withdrawn, plastic ... | 07/26/1977 |
| 4034959 | Valve seal retaining means A valve comprised of a valve body having a body with flow passages therethrough and a valve member mounted therein movable between open and closed positions. An annular groove in the body around a flow passageway has an open end, a closed end, and a pair ... | 07/12/1977 |
| 4006881 | Fluid-tight packing for closure devices and devices fitted with said packing At least part of a packing which is compressed between two components of a closure device such as a cock or valve is cut from a sheet of carbonaceous material formed by the association of carbon fibers with expanded graphite and compacted at least to a pa... | 02/08/1977 |
| 3985334 | Ball valve A ball valve with an actuator wherein a seal assembly with a combination O-ring swivel and seal for producing a tight seal is hidden in a pocket isolated from the flow of fluid through the valve by an inlet reentrant flange and the valve body. The swivel ... | 10/12/1976 |
| 3981482 | Fluid system device The specification and drawings disclose a ball valve designed to be highly reliable and easily maintained. The disclosed valve comprises an intermediate body section positioned between a pair of end fittings which are connected to the body by a plurality ... | 09/21/1976 |
| 3974869 | Fluid flow control valve Fluid flow control valves such as plug valves or cocks have the plugs thereof supported and sealed in the valve housing by a rigid but somewhat elastic plastics bearing member which is preloaded and compressed from its free state condition and seeks to re... | 08/17/1976 |
| 3970285 | Ball valve assembly A ball valve assembly including an easily replaceable stem seal capable of utilization as a primary or secondary seal in a closed circuit system such as a refrigeration circuit or the like where it is (a) not feasible to open the system for changing a lea... | 07/20/1976 |
| 3961770 | Plug valve A plug valve having a housing molded in place about a pre-formed rotary valve member. The rotary valve member is molded with the mold parting lines lying in a plane containing the axis of the flow passageway. Around the passageway orifice, the mold partin... | 06/08/1976 |
| 3960363 | Ball valve A ball valve with an actuator wherein a seal assembly with a combination O-ring swivel and seal for producing a tight seal is hidden in a pocket isolated from the flow of fluid through the valve by an inlet reentrant flange and the valve body. The swivel ... | 06/01/1976 |
| 3954251 | Fluid system device The specification and drawings disclose a ball valve designed to be highly reliable and easily maintained. The disclosed valve comprises an intermediate body section positioned between a pair of end fittings which are connected to the body by a plurality ... | 05/04/1976 |
| 3949965 | Ball valve A small ball valve for chemically active materials is provided which does not require the strength of metal parts and which permits the use of brittle material such as glass or ceramic as well as materials such as fluorocarbon polymers and polytetrafluoro... | 04/13/1976 |
| 3948480 | Rotary ball valve A rotary ball valve includes a seat support integral with the valve body, a rotatable ball, a movable seat support, a retaining ring, and, on opposite sides of the ball, thin annular seating rings made from a material, such as tetrafluoroethylene. When th... | 04/06/1976 |
| 3937040 | Method of knitting panty hose A process for knitting the body portion of a panty or panty hose of one piece construction on a circular knitting machine which comprises knitting a first leg portion by tubular knitting, supporting the tubular knit portion on all the needles while inacti... | 02/10/1976 |
| 3930636 | Ball valves A ball valve having a seating ring held in a recess in the valve bore by threaded portions of the ring and bore such that, when the ring is in position, the threaded portion on it has passed right through the threaded portion of the bore, there being a ra... | 01/06/1976 |
