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 |
| 7025022 | Exhaust valve and intake system A method for controlling a fluid quantity in an internal combustion engine is provided for an internal combustion engine having an engine shaft and an operation cycle that includes at least one intake phase, one proportioning phase, one combustion phase in a combust... | 04/11/2006 |
| 6832595 | Self-cleaning internal combustion engine intake valve A self-cleaning valve for removing hydrocarbon deposits from pressure responsive automatic air intake valves in an internal combustion engine. The self-cleaning valve assembly of the present invention removes soot which naturally accumulates on the surface of the va... | 12/21/2004 |
| 5803042 | Valves and valve timing for internal combustion engine An exhaust valve assembly of an internal combustion engine selectively covers an exhaust manifold circumferentially located about a top wall of a cylinder without interfering with segments of a piston. The exhaust valve assembly includes a ring-shaped por... | 09/08/1998 |
| 4860701 | Multiple piston expansion chamber engine A method of extracting work from two chambers including a working chamber surrounded by a reciprocating sleeve and an auxiliary chamber surrounding the sleeve.... | 08/29/1989 |
| 4741296 | Multiple piston expansion chamber engine A method of extracting work from two chambers including a working chamber surrounded by a reciprocating sleeve and an auxiliary chamber surrounding the sleeve.... | 05/03/1988 |
| 4580532 | Multiple piston expansion chamber engine Multiple expansion chambers are configured to partially expand the combusted charge in the combustion chamber and then to complete the expansion process using a supplemental expansion chamber with chamber isolation designs.... | 04/08/1986 |
