摘要:
A check valve or backflow preventer has a valve mechanism mounted to a valve cover for removal and replacement as a unit. The valve clapper is resiliently supported to accommodate variations in tolerance. The valve seat is removably secured within the valve body by compression of a resilient seal ring to engage opposed walls of the seat and body. A spring pretensioning member facilitates safe replacement and removal of the valve mechanism.
摘要:
A system and method of determining cardiac output from a cardiac pressure waveform. The pressure waveform is continuously sensed and converted into a digital data stream. When a complete beat frame of data is sensed, the processor extracts a plurality of features from the sensed waveform which characterize the waveform. These features are compared to stored representative pressure waveforms (RPW's) which have a known cardiac output. The RPW's are obtained by applying a pattern recognition methodology to pressure waveforms of known cardiac output. In one embodiment the typical shapes function is used. The pattern recognition methodology results in classes and associated cardiac outputs which are stored as the RPW's. The features extracted from waveforms representative of unknown cardiac output are thus classified by the comparison to the RPW's. When a match is made between the extracted features and an RPW, the cardiac output of the selected RPW is output as the cardiac output of the patient.
摘要:
A system and method of determining cardiac output from a cardiac pressure waveform. The pressure waveform is continuously sensed and converted into a digital data stream. When a complete beat frame of data is sensed, the processor extracts a plurality of features from the sensed waveform which characterize the waveform. These features are compared to stored representative pressure waveforms (RPW's) which have a known cardiac output. The RPW's are obtained by applying a pattern recognition methodology to pressure waveforms of known cardiac output. In one embodiment the typical shapes function is used. The pattern recognition methodology results in classes and associated cardiac outputs which are stored as the RPW's. The features extracted from waveforms representative of unknown cardiac output are thus classified by the comparison to the RPW's. When a match is made between the extracted features and an RPW, the cardiac output of the selected RPW is output as the cardiac output of the patient.
摘要:
Burning a waste fuel blend at very high temperatures (typically greater than 4000 deg. F.) for a very short period of time (typically a matter of milliseconds) in a primary combustion zone to break the complex hazardous/toxic hydrocarbons into less complex chemicals (such as CO, CO.sub.2, H.sub.2, OH, HCl, and Cl.sub.2), passing the products of the primary zone into a secondary zone in which the products are maintained for a longer time (typically about 2 secs.) in turbulent conditions with excess air at lower combustion temperatures (typically 2000 to 2600 deg. F.) to reduce the primary zone products to a mixture of H.sub.2 O, CO.sub.2 and acids such as HCl, and quenching the products of the secondary zone.
摘要:
A first drug delivery system includes first and second drug-container holders and first and second pump assemblies. The first (second) holder is adapted to receive a first (second) drug container having a first (a different second) dimensioned shape but not a second (first) drug container having a different second (a first) dimensioned shape. A second drug delivery system includes first and second bar code scanners, first and second drug-container holders, and first and second pump assemblies. The first (second) holder is adapted to receive a first (second) drug container having a dimensioned shape and to orient a positioned first (second) bar code of the first (second) drug container to face the first (second) bar code scanner because of the dimensioned shape. In one application, the first drug is a sedative drug, the second drug is an analgesic drug, and the drugs are used during a conscious sedation medical procedure.
摘要:
The invention is a transporter for moving a rolltainer, a trolley, and various other multi-wheeled containers that roll on a surface. The transporter utilizes lever-assisted rotating forks to lift and position the container to provide maximum traction, stability, and safety. The transporter utilizes hub motors for increased maneuverability and to eliminate drivetrain elements. The transporter is configured to keep transporter structure between the operator and the load during al operative modes to maximize operator safety.
摘要:
A method and apparatus are provided for presenting background sensory information to a call participant through a call connection. The method includes the steps of determining an identity of the call participant from call associated information and presenting the call participant with predetermined background sensory information through the call connection based upon the identity of the caller.
摘要:
A fluid meter totalizing register assembly suitable for submerged service includes a fluid meter totalizing register and a register case. The register case has a housing comprising a water impermeable elastomeric material defining at least one wall of a cavity for receiving the fluid meter totalizing register. The register case includes a transparent lens of water impermeable material closing a top opening of the cavity in a water-tight seal with the wall of the housing, and a magnetic-force transmitting element of water impermeable material closing a bottom opening of the cavity in a water tight seal with the wall of the housing. The register includes a rotatable register element disposed within the cavity adjacent an inner surface of the magnetic-force transmitting element. The rotatable register element is driven by magnetic coupling with a rotatable meter element disposed adjacent an opposite, outer surface of the magnetic-force transmitting element.
摘要:
A simple, unitary tool which facilitates placement of shimming tape in the finger holes of a bowling ball and additionally can be used to enlarge the finger holes of such bowling ball. The tool comprises an elongated member and a pair of arms connected to such member. The arms respectively have a portion parallel to and spaced from the elongated member, the dimensions between such portions being less than the diameter of a bowling ball finger hole. A tape shim is threadable over the elongated member and under the arms to be retained thereby. The elongated member, with a threaded tape shim may be inserted into a bowling ball finger hole, pressed against the wall of such finger hole to transfer such tape shim to such finger hole to shim the finger hole, and then removed, leaving such tape shim properly secured to such finger hole. Additionally, the elongated member may include an abrasive surface portion spaced from the pair of arms. The abrasive surface is adapted to be selectively utilized to enlarge a bowling ball finger hole.
摘要:
A calculating device for a bowling game whereby a bowler can readily ascertain an optimum approach starting location for throwing a bowling ball along a path which will maximize the number of pins knocked down. The calculating device comprises a first member having a first hairline and first and second indexes. The first index has indicia corresponding to bowling pin locations expressed in terms of distance from a given location, such as the marginal edge of a standard bowling lane. The second index has indicia corresponding to target marker locations expressed in terms of distance from the given location. A second member is slidably associated with the first member. The second member has a scale having indicia, corresponding to approach starting locations expressed in terms of distance from the given location, associated with the first hairline and second index. A cursor is slidably associated with the first and second members. The cursor has an indicator associated with the first index, and a second hairline associated with the scale. When the indicator is aligned with a particular bowling pin location on the first index, and when the second member is moved relative to the first member such that a particular portion of the scale associated with a particular portion of the scale associated with a particular target marker location is aligned with the second hairline, then an optimum approach starting location is found on the scale aligned with the first hairline.