Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 6764059 | Valve isolation system A system and method for controlling and monitoring operation of a valve are disclosed. The system includes an actuator and a switch that, upon being actuated, provides a control signal to the actuator designed to cause the valve to change from a first state to a sec... | 07/20/2004 |
| 6668862 | Fluid bearing mechanism A fluid bearing mechanism using a one-way valve with such a simple structure that high processing accuracy is not required. A one-way valve 6 includes a valve base 7; an abutting portion 11 protruding inwardly, formed with a small communication hole 12 in... | 12/30/2003 |
| 6390121 | Check valve controlled by differential pressure A check valve (4) controlled by differential pressure, preferably in form of a disk valve, having a closing element (5) that impacts a valve seat (8) with a force by means of an elastic (resilient) element, preferably a closing spring (6). The closing ele... | 05/21/2002 |
| 4460013 | Pressure-vacuum vent The pressure-vacuum vent is adapted to communicate an internal storage chamber with atmosphere at predetermined pressure and vacuum conditions. The vent includes a poppet valve member that moves upwardly within a body to vent the chamber to atmosphere whe... | 07/17/1984 |
| 4414997 | Siphon A siphon for transferring fluid from a container to either another container at lower elevation or to a disposal area. The siphon includes a tube having an improved one way check valve which valve is inserted into the first container and, by merely shakin... | 11/15/1983 |
| 4370999 | Pressure limiting device with two pressure levels for a pressure cooker The device comprises a steam-escape duct (1) terminated by a valve-seat (3, 4). A shut-off surface (71, 72), realized in a cap (65) at the bottom of an axial cavity (8) slidably mounted on the duct (1), rests, in the service conditions, on the seat (3, 4)... | 02/01/1983 |
| 4064891 | Plural fluid proportioning apparatus Apparatus is provided for admixing a relatively small quantity of one fluid with a larger quantity of another fluid in a proportion which remains relatively constant over a wide range of demand flow rates for the mixed fluids. The apparatus comprises a bo... | 12/27/1977 |
| 3995657 | Valve A liquid fuel filler cap provided with a valve assembly in a channel extending through said cap said valve assembly comprising means defining at least part of a channel, a valve seat in said channel, a valve member adapted to co-operate with said valve se... | 12/07/1976 |
| 3949781 | Exhaust valve An exhaust valve, in pressure cooker lids, comprises a vertical tube on which a suitable weight is applied provided with several steam exhaust points which is provided on its free edge with an external thread where the weight is screwed, leaving a free in... | 04/13/1976 |
