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| Number | Title | Issue Date |
| 8033753 | Automatic flooding protection for underground ventilation ducts Embodiments are described for preventing downward flow of substantial surface water into an underground ventilation duct communicating upwardly to a ground surface opening. The embodiments comprise a support having a top opening and an opening in a lower portion abo... | 10/11/2011 |
| 7993311 | Urine collection and disposal system A urine collection and disposal system and method applies subatmospheric pressure to a receptacle open to atmospheric pressure which has a urine outlet in fluid communication with a source of subatmospheric pressure. The receptacle receives urine in the receptacle f... | 08/09/2011 |
| 7235609 | Thermoplastic olefin compositions and articles A thermoplastic olefin (TPO) composition comprises (1) a major amount by weight of (a) a substantially linear homopolymer or copolymer of a C2–C10 α-olefin in major proportion to (b) a long chain branched a linear homopolymer or copolymer of... | 06/26/2007 |
| 7101114 | Storm drain system and method A storm drain system is provided to prevent rising water from flowing substantially vertically out of a storm drain inlet. The storm drain system comprises a seat generally horizontally mounted within a chamber and a moveable buoyant door assembly responsive to risi... | 09/05/2006 |
| 6837017 | Apparatus for placing rebar in continuously reinforced concrete paving A transverse bar assembly for use in constructing rebar mats for reinforcement of concrete paving includes a plurality of chairs and clips each having a lower portion that fixes to a transverse bar in the direction of its length and an upper portion for orthogonally... | 01/04/2005 |
| 6776522 | Apparatus and system for monitoring temperature of high voltage conductors Apparatus for monitoring the temperature of a high voltage conductor includes an electrically and thermally conductive fixture for attachment to a high voltage conductor, and a high voltage insulator having a high voltage end and a reference potential end. The insul... | 08/17/2004 |
| 6623209 | Automatic flood gate A horizontally pivoted structurally rigid buoyant flood gate, in a housing for the gate arranged in front of an opening to a construction, is pivotally floated out of the housing by rising water entering a portal to the housing, and rotates buoyantly upwa... | 09/23/2003 |
| 6454707 | Method and apparatus for predicting mortality in congestive heart failure patients Methods of predicting mortality or imminent death in patients with congestive heart failure include detecting changes in the patient's temperature and/or the detection of hypothermia. The invention also relates to devices and kits for implementation of th... | 09/24/2002 |
| 6406267 | Extracorporeal circulation pump A peristaltic pump employs an adjuster to provide facility to change flow rate without changing pump speed during operation of a pump comprising a distensible, compliant segment of header tubing stretched around rollers mounted 120 degrees apart on a rota... | 06/18/2002 |
| 6323384 | Process for isomerizing linear olefins to isoolefins This invention provides a process to convert linear alkenes such as butene-1 and butene-2 to methyl branched chain alkenes such as isobutylene using the hydrogen form of ferrierite. The hydrogen form of ferrierite has a pore size which allows the branched... | 11/27/2001 |
| 5957880 | Extracorporeal circulation apparatus and method Patient blood in an extracorporeal flow circuit (such as a cardiopulmonary bypass machine) is contacted with one or more nitric oxide feeds at least one of which is upstream of the circuit pump, to provide a concentration of nitric oxide in the blood effe... | 09/28/1999 |
| 5900433 | Vascular treatment method and apparatus This invention relates to the method of use of a congener of an endothelium-derived bioactive composition of matter, which comprises administering said congener percutaneously to a site proximately adjacent the exterior of a coronary blood vessel at a the... | 05/04/1999 |
| 5894273 | Centrifugal blood pump driver apparatus A centrifugal blood pump driver comprises a motor housing and the housing contains a motor for rotationally driving the centrifugal blood pump and a controller operatively associated with the motor for controlling the rotational speed of the motor; a spee... | 04/13/1999 |
| 5887749 | Food holder A food container especially for pet feeding has a plurality of compartments at least one compartment of which is circular to house canned wet food. The inside walls of the compartments include a upper rim wall portion set back at a rim wall base elevation... | 03/30/1999 |
| 5827216 | Method and apparatus for accessing the pericardial space A pericardiocentesis apparatus and method for accessing the pericardial space. The invention consists of inserting a percutaneous tube whose tip has a hole which is positioned over and contacts the anterior pericardium. Introducing a vacuum within the tub... | 10/27/1998 |
| 5785044 | Fluid sample receptacle A fluid sample receptacle provides a means of assuring uncontaminated, multiple samples of a fluid specimen. An upper or isolated sample chamber and a lower or primary sample chamber provide redundant test samples. A cover or lid with a downwardly extendi... | 07/28/1998 |
| 5725492 | Extracorporeal circulation apparatus and method Patient blood in an extracorporeal flow circuit (such as a cardiopulmonary bypass machine) is contacted with one or more nitric oxide feeds at least one of which is upstream of the circuit pump, to provide a concentration of nitric oxide in the blood effe... | 03/10/1998 |
| 5681278 | Coronary vasculature treatment method Method and apparatus for treating blood vessels in a mammal, particularly humans, especially coronary blood vessels, for vascular thrombosis and angioplasty restenosis, thereby to decrease incidence of vessel rethrombosis, unstable angina and myocardial i... | 10/28/1997 |
| 5634895 | Apparatus and method for transpericardial delivery of fluid Method and apparatus for treating blood vessels in a mammal, particularly humans, especially coronary blood vessels, for vascular thrombosis and angioplasty restenosis, thereby to decrease incidence of vessel rethrombosis, unstable angina and myocardial i... | 06/03/1997 |
| 5601191 | Liquid specimen vessel A liquid vessel provides a means of assuring uncontaminated, multiple specimens of a liquid. Two containers are connected side-by-side by a retainer which accepts an optional detachable funnel assembly that directs liquid into each container. The retainer... | 02/11/1997 |
| 5549141 | Liquid container sample transfer method and apparatus A method for dispensing a sample of liquid from a sealed thermoplastic container which includes both a volumetrically flexible chamber holding the liquid and also a plurality of spaced axially vertical nozzles on the container underside, the nozzles havin... | 08/27/1996 |
| 5526883 | Safety valve closure system Apparatus and method of controlling a surface safety valve and a subsurface safety valve in a producing hydrocarbons well, comprising: providing a self contained control circuitry including a reservoir for a hydraulic fluid; sensing a drop below a pre-est... | 06/18/1996 |
| 5411065 | Liquid specimen transfer apparatus and method A method of obtaining aliquots or samples from a liquid specimen collection container and an apparatus which automateally perforths those methods involves transferring a sample of liquid from a sealed non-deformingly expandable container containing gas an... | 05/02/1995 |
| 5409117 | Liquid specimen vessel A liquid vessel provides a means of assuring uncontaminated, multiple specimens of a liquid. Two containers are connected side-by-side by a retainer which accepts a detachable funnel assembly that directs liquid into each container. The retainer includes ... | 04/25/1995 |
| 5120708 | Non-poluting anti-stick water-base drilling fluid modifier and method of use A water-based drilling fluid additive composition comprising a water soluble polyoxyalkylene compound selected from polyoxyalkylene glycols, monoalkylethers of polyoxyalkylene glycols, and mixtures thereof, which have a cloud point in the range from about... | 06/09/1992 |
| 5099930 | Drilling fluid methods and composition A method is provided for the prevention of balling of formation cuttings upon the surface of drilling equipment and for lubrication of said equipment used in conjunction with subterranean well operations. An aqueous system is prepared to which is added a ... | 03/31/1992 |
| 5093984 | Printed circuit board loader/unloader A printed circuit board loader and unloader in which a printed circuit board carrier is horizontally translationally moved in a straight line along a first axis and a pick and place head unit is horizontally translationally moved above the carrier in a st... | 03/10/1992 |
| 4897192 | Rotary filtration device A filtration device includes in a pressure vessel a driven rotary shaft having a longitudinal bore. Fluid suspension to be processed to recover the fluid is expelled from distributing conduit, situated either in the shaft or in the vessel, the outlets of ... | 01/30/1990 |
| 4819657 | Automatic allergy detection system Disclosed herein is an automatic allergy testing system. The system includes an electrode capable of testing up to eight different allergies and an associated electronic unit. The electrode includes apparatus to transcutaneously deliver an allergen to the... | 04/11/1989 |
| 4818401 | Rotary filtration device A filtration device includes in a pressure vessel a driven rotary shaft having a longitudinal bore into which fluid suspension to be processed to recover the fluid is pumped. The suspension is expelled into a processing zone in the vessel from distributin... | 04/04/1989 |
| 4809707 | Electrode for non-invasive allergy testing Disclosed herein is an electrode for performing a plurality of allergy tests on a patient undergoing tests. The allergy electrode consists of a plurality of individual testing electrodes and a single common electrode. Each of the testing electrodes includ... | 03/07/1989 |
| 4790460 | Skateboard carrier A carrier for transport of a skateboard which leaves use of the hands free, includes a flexible resiliently deformable pad body with front and back faces configured to cover substantially the upper back of the bearer. The lateral sides of the pad body hav... | 12/13/1988 |
| 4689303 | Controlled circulation incubator Described herein is a controlled circulation incubator device having a plurality of plate receiving trays held by a tray bracket. Heated air is circulated by a blower and heater assembly around the trays held by the tray bracket and the temperature of the... | 08/25/1987 |
| 4490094 | Method for monitoring an oil well pumping unit Instantaneous speeds of revolution for a beam pumping unit prime mover rotor, determined for all or a predetermined part of the pumping unit reciprocation cycle, are applied to compute one or more parameters of pumping unit performance, which are compared... | 12/25/1984 |
| 4296373 | Hematology cell counting apparatus incorporating multiple transducers for sequential operation In particle counting apparatus such as a hematology parameter measurement apparatus for performing multiple measurements on one blood sample, first and second impedance transducers, each including inner and outer electrodes, are provided for selective hyd... | 10/20/1981 |
| 4251768 | Coincidence correction of hematocrit in a hematology measurement apparatus In a hematology measurement apparatus, a hematocrit value is generated by incrementing a value in accumulation means in accordance with measured sizes of red blood cells. The hematocrit value is corrected for coincidence by incrementing the value addition... | 02/17/1981 |
| 4236894 | Readout circuit in an automatic chemical testing apparatus In an automatic chemical testing apparatus in which radiant energy readings are taken from a liquid sample of reacted contents comprising reagent and one or more aliquots, one per channel, of a sample fluid, a statistically large number of readings are ta... | 12/02/1980 |
| 4229369 | Tris (hydroxymethyl) aminomethane salt of 2-mercaptosuccinic acid An improved reagent system for chemical determinations and novel compositions therefor provide improved reagent stability, particularly in a dry, storage stable phase. For determinations in which hexokinase and glucose-6-phosphate dehydrogenase are indica... | 10/21/1980 |
| 4115864 | Fail safe detector in a cardiac monitor A fail safe detector in a cardiac monitoring system provides an alarm to indicate failure of the system to respond to cardiac waveforms supplied thereto from cardiac waveform sources. A time out circuit will produce the alarm if not periodically reset by ... | 09/19/1978 |
