Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7402425 | Stress-based electrostatic monitoring of chemical reactions and binding Electrostatic capacitance measurements are used to detect chemical or biological analytes, or chemical interactions, with great sensitivity. A diaphragm is coated with a material capable of selectively interacting with an analyte of interest, and interaction of the ... | 07/22/2008 |
| 7152469 | Fluid flow sensor, method and system A fluid flow sensor, a method of detecting flow/no flow and flow systems employing same are provided. In one embodiment, an infrared light emitting diode (“LED”), phototransistor, rigid housing and a flexible opaque diaphragm are used. The diaphragm opens upon a... | 12/26/2006 |
| 7117732 | Fuel gauge for fuel cartridges Fuel gauges for fuel supplies for fuel cells are disclosed. Each fuel gauge has a property that is readable by an electrical circuit. These properties are related to the remaining fuel in the fuel supplies. These properties include, but are not limited to, electrica... | 10/10/2006 |
| 7032447 | Diaphragm gas meter In a gas meter, a measuring diaphragm is provided inside a measuring chamber, the measuring diaphragm is caused to reciprocate according to a gas pressure of gas flowing from a gas inflow port to the measuring chamber, and the reciprocation of the measuring diaphrag... | 04/25/2006 |
| 5594167 | Gas meter having cam for reciprocating valve covers and related methods A gas meter includes a cam for driving first and second valve covers associated with respective diaphragms. Gas flowing into the gas meter is selectively directed by the first and second valve covers to reciprocate respective diaphragms. First and second ... | 01/14/1997 |
| 5526685 | Fluid flow rate measuring and controlling apparatus and method for using same A volumetric flow control apparatus and method for measuring and controlling the volumetric flow rate and flow volume of a fluid. The apparatus comprises a reciprocating diaphragm meter having a diaphragm mounted for reciprocating movement and a diaphragm... | 06/18/1996 |
| 5515722 | Gas meter with unitary central core defining multiple flow passages A dry gas meter includes a unitary core which functions as the meter casing and defines the inner sides of two gas chambers, a valve gear chamber, an index housing and multiple gasways. A central partition of the core has angled wall portions which provid... | 05/14/1996 |
| 4848148 | Cyclic motion detection arrangement An arrangement for detecting cycles of operation of a positive displacement diaphragm gas meter sets up a magnetic field which is directed through the non-magnetic housing of the meter toward an internal cyclically moving ferromagnetic element of the mete... | 07/18/1989 |
| 4796651 | Variable gas volume flow measuring and control methods and apparatus A method and apparatus for measuring gas flow volume in a system (of the kind in which the amount of gas flowing in a duct can vary in response to the variation of area of a variable area orifice in a duct and/or in response to changes in the total pressu... | 01/10/1989 |
| 4788389 | Flow switch valve A flow switch valve including a housing main body comprising a plurality of valve casings stacked contiguously and each having a fluid flow channel and a valve seat member, a valve member passing slidably through said valve casings and having valve bodies... | 11/29/1988 |
| 4512187 | Flow rate controller Flow control of a shear-sensitive, i.e. pressure gradient degradable, liquid from a high pressure source to a lower pressure discharge is achieved by controlling the liquid's exposure to a degradation pressure gradient. Two displacement chambers are provi... | 04/23/1985 |
| 4473082 | Lung exerciser with variable resistance A device consisting of an adjustable volume bellows made of inexpensive materials to be used as a visual indicator and volume measurement to encourage a patient to breath deeply as an exercise is provided. Means for adding calibrated weight to vary resist... | 09/25/1984 |
| 4350167 | Respiratory exerciser A respiratory exercise device for measuring the volume of air inhaled by the user, the device comprising an essentially rigid transparent container having an inhalation tube by means of which air is evacuated from the container, the container having an ex... | 09/21/1982 |
| 4345605 | Lung exerciser A volume type lung exerciser consisting of a light bellows made of a stack of flat sheets of plastic film welded together and having an inner support skeleton of semi-rigid sheets. The bellows is hung from a collapsible leg stand which slides into a movab... | 08/24/1982 |
| 4241740 | Bellows type incentive spirometer A spirometer comprises an upright, hollow frame structure having opposite end portions with an expansible and contractible bellows therein responsive to exhalation and inhalation. The bellows includes a hollow, resilient helical structure with a plurality... | 12/30/1980 |
