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US 6,604,427 B1Granted
Bellow-type pressure sensing apparatus
OwnerNate Colemaninventor
Life of this patent
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Abstract
An Improved Bellow-Type Pressure Sensing Apparatus is disclosed. Also disclosed is, an apparatus that provides increased pressure sensitivity without added cost and complexity in the electronic detector circuitry. The apparatus further is less sensitive to gravity, vibrations or other external influences. It is a still further object that the apparatus be available with curved bellow head, formed with either concave or convex reflective surfaces.
Claims9
An improved pressure sensor, comprising:
- a signal source for transmitting signals;
- a detector for detecting the strength of signals of the type transmitted by said source;
- a bellow assembly, further defining a head, said bellow assembly configured to translate a sensed pressure change into a signal represented by substantially longitudinal travel of said head, said bellow assembly further comprising a stem, a bellow section extending from said stem, and a head adjacent to said bellow section, said head comprising focusing means for reflecting and focusing said transmitted signals and directing them towards said detector, said focusing means comprising a curved reflector for focusing and reflecting said transmitted signals towards said detector, said focusing means located at said head, said signal source and said detector being encapsulated within said bellow;
- a chamber within which said bellow assembly is located, said chamber defining a chamber pressure;
- and
- said bellow assembly defining a bellow pressure, said bellow assembly further defining a longitudinal length, whereby a change in either said chamber pressure or said bellow pressure will result in a change in said length.
3 more elements
An improved pressure sensor, comprising:
- a signal source for transmitting signals;
- a detector for detecting the strength of signals of the type transmitted by said source;
- and
- a bellow assembly, further defining a head, said bellow assembly configured to translate a sensed pressure change into a signal represented by substantially longitudinal travel of said head, said bellow assembly further comprising a focusing means for reflecting and focusing said transmitted signals and directing them towards said detector, said focusing means comprising a lens integrated into said head for focusing said transmitted signals onto said detector, said focusing means located at said head, said signal source and said detector being encapsulated within said bellow.
1 more element
Dependencies are inferred from the claim text.