Did You Know...
...that the first rickshaw was invented in 1869 by an American Baptist minister, the Rev. E. Jonathan Scobie, to transport his invalid wife around the streets of Yokohama?
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6981691 | Dual segment ball valve A ball valve has a valve body defining an inner seat and having a fluid inlet and fluid outlet and a control ball element rotatably mounted in the inner seat. The control ball element has a partially spherical outer surface, a flow passage having a leading edge, a f... | 01/03/2006 |
| 6974121 | Fluid flow control valve with bi-directional shutoff A control valve of the ball type with bi-directional shutoff capabilities is disclosed. The ball valve including an inlet and an outlet, a ball element and a seal assembly. When closing the valve, the ball element, which is eccentrically mounted on a shaft, rotates ... | 12/13/2005 |
| 6971633 | Rotatable seal for ball valve A ball valve assembly having two end bodies selectively detachable from each other with each end body defining a fluid conveying bore is provided. A rotatable ball valve element is disposed within the end bodies and defines a central passage having an axis, with the... | 12/06/2005 |
| 6651958 | Valve seat having a frusto-conical shape A valve including an at least partially spherical valve control member and a valve seat where the valve control member is rotatable within a valve housing to obturate and to open at least one opening of the housing by bringing a passage through the valve ... | 11/25/2003 |
| 6485000 | Device by ball valve A ball valve having a valve housing with an inlet and an outlet, a valve body with a bore and sealing bodies, and valve seats which are in sealing planes parallel to one another forming an oblique angle with the inlet and the outlet, and in which the seal... | 11/26/2002 |
| 6367771 | Butterfly valve with offset bearings The device concerns a device for adjusting the relative distance or position between a check valve and the base on which it rests when it is closed. Said device consists of a valve body (1), a valve shaft (5), a check valve (5) and two bearings (2 and 3) ... | 04/09/2002 |
| 5634626 | Valve assembly plug and body seat improvements A valve with improved body and plug seats and methods of manufacturing the seats are disclosed. The body seat is separate from the valve body and is adhesively attached to the valve body about at least one of the valve body orifices. The body seat is adhe... | 06/03/1997 |
| 5482253 | Ball valve The invention relates to a ball valve of the trunnion type, comprising a valve housing having an oppositely directed coaxially aligned inlet and outlet, each of which being provided with an internal seat, and a reversible conventional valve ball formed wi... | 01/09/1996 |
| 4667929 | Cutoff valve, particularly for the cutoff of high-temperature fluids The valve comprises a valve body defining a valve chamber having input and output openings, and housing a rotatable shutter element, traversed by a passage, adapted for selectively connecting the input and output openings. Provided between at least one of... | 05/26/1987 |
| 4632140 | Top entry ball valve A ball valve has a valve body with a bonnet bore communicating with a through fluid bore. An unyielding valve seat is fixed in the valve body at a location surrounding the axis of the fluid bore. A bonnet with a stem bore extending therethrough is receive... | 12/30/1986 |
| 4548384 | Top entry metal-seated ball valve This invention relates to a ball valve having a valve body with a bonnet bore communicating with a through fluid bore. A valve seat in the valve body surrounds the fluid bore axis. A bonnet with a stem bore extending therethrough is received in the bonnet... | 10/22/1985 |
| 4410165 | Ball valve and seat assembly A ball valve having an improved relationship between the ball and associated seat rings and an improved seat ring design. The ball is mounted for selective rotation and limited axial movement in a valve body passageway. Seat rings disposed on diametricall... | 10/18/1983 |
| 4164343 | Eccentric ball type valve A ball type valve for high pressure lines is designed so that the spherical valve member is offset from the centerline of the valve stem in such a manner that the spherical valve member in the open position has a cylindrical fluid passage in parallel alig... | 08/14/1979 |
