"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7210494 | Valve and method for producing a valve A valve and a method for producing a valve, in particular for coolant circuits, having a valve seat (2) including a valve seating element (1) for a valve body (3) by stamping the pole shoe to form at least one sealing surface (8) to avoid... | 05/01/2007 |
| 6997434 | Twist cam valve A drain valve including a housing, a poppet, a seal, a follower pin, and a biasing mechanism. The housing defines a passage there-through from a first end to a second end, a cam surface at the second end with at least two detents therein, and at least one slot in th... | 02/14/2006 |
| 6923627 | Air compressor with extensible handle bar assembly An air compressor assembly with one or more of the following features: a removable manifold assembly capable of being remotely located from the air compressor assembly for controlling and distributing compressed air from the air compressor assembly to one or more ai... | 08/02/2005 |
| 4880029 | Drain valve A push-type, lightning-protected fuel tank drain valve has a non-conductive plastic poppet that cannot be pushed upwardly axially far enough to open its port until the poppet is first rotated about its axis.... | 11/14/1989 |
| 4848728 | Coupling arrangement A coupling arrangement comprises a first coupling part (1) and a second coupling part (2) which can be connected to and disconnected from the first coupling part. The first coupling part houses a longitudinally displaceable valve (4), and a sealing device... | 07/18/1989 |
| 4355784 | Method and apparatus for controlling back pressure A back pressure control choke operates to automatically control and maintain a desired back pressure on the fluid passing through the choke. The choke housing has an inlet channel which intersects with an axial bore, part of which bore constitutes the dis... | 10/26/1982 |
| 4351355 | Drain valve A drain valve for use in a fuel tank and having a drain port and an axially movable poppet or valve member. The valve member has a first position for closing the port, a second position for opening the port to permit draining of liquid from the fuel tank,... | 09/28/1982 |