Abstract: An improved bearing mount sleeve and method of making same. The sleeve has a radial flange and body portion projecting therefrom. First and second shoulders in the body portion seat large and small bearings respectively. Crush ribs apply radial preloading and wave washers apply axial preloading. The sleeve is located by tabs on its flange and a locating element projecting from the end opposite the flange A series of drawing steps result in the sleeve form and piercing and forming steps complete the sleeve at economic advantage.

Abstract: An improved bearing mount sleeve and method of making same. The sleeve has a radial flange and body portion projecting therefrom. First and second shoulders in the body portion seat large and small bearings respectively. Crush ribs apply radial preloading and wave washers apply axial preloading. The sleeve is located by tabs on its flange and a locating element projecting from the end opposite the flange A series of drawing steps result in the sleeve form and piercing and forming steps complete the sleeve at economic advantage.

Abstract: The present invention provides a method for predicting the likely timing of the onset of menopause for a perimenopausal female subject by determining the amount of hLH&bgr;cf in a sample from the subject comprising the steps of: (a) contacting a sample from the subject with an antibody which specifically binds to hLH&bgr;cf without substantially cross-reacting with hLH, hLH&bgr; or hLH&bgr;cf, under conditions permitting formation of a complex between the antibody and hLH&bgr;cf; (b) measuring the amount of complex formed, so as to thereby determine the amount of hLH&bgr;cf in the sample; and (c) comprising the amount of hLH&bgr;cf in the subject's sample determined in step (b) with either (i) the amount determined for known postmenopausal female subject or (ii) the amount determined for a sample from a known premenopausal female subject, wherein an amount of hLH&bgr;cf in the sample similar to the amount of hLH&bgr;cf in the known postmenopausal sample indicates temporal proximity to the onset of menopause,

Abstract: A light-weight electric motor driven fluid pump assembly having a molded thermoplastic housing of two parts which form a fluid impervious rotor chamber, a stationary shaft journalled in the housing parts within the chamber and carrying a magnetic rotor and a fluid impeller driven thereby. The housing parts also define inlet and discharge ports in communication with the rotor chamber adjacent the impeller blades. One portion of the housing of one housing part defines a cylindrical thin walled tubular configuration with a cylindrical exterior surface for mounting a stator thereabout. The housing parts are welded together at mating surfaces with the result that neither static nor dynamic seals are required in the assembly.

Abstract: The present invention provides a method of predicting pregnancy outcome in a subject by determining the amount of an early pregnancy associated molecular isoform of hCG in a sample. The present invention further provides a method for determining the amount of early pregnancy associated molecular isoforms of human chorionic gonadotropin (hCG) in a sample. The present invention also provides a diagnostic kit for determining the amount of early pregnancy associated hCG is a sample. The present invention additionally provides an antibody which specifically binds to an early pregnancy associated molecular isoform of human chorionic gonadotropin. Finally, the present invention provides methods for detecting trophoblast or non-trophoblast malignancy in a sample.

Abstract: The present invention provides methods to quantitate the hLH&bgr; core fragment in a sample. The present invention now makes it possible to evaluate the metabolism of hLH in premenopausal, perimenopausal and postmenopausal women and to distinguish between normal and abnormal physiological states.

Abstract: The present invention provides a method for predicting the likely timing of the onset of menopause for a perimenopausal female subject by determining the amount of hLH&bgr;cf in a sample from the subject comprising the steps of: (a) contacting a sample from the subject with an antibody which specifically binds to hLH&bgr;cf without substantially cross-reacting with hLH, hLH&bgr; or hLH&bgr;cf, under conditions permitting formation of a complex between the antibody and hLH&bgr;cf; (b) measuring the amount of complex formed, so as to thereby determine the amount of hLH&bgr;cf in the sample; and (c) comprising the amount of hLH&bgr;cf in the subject's sample determined in step (b) with either (i) the amount determined for known postmenopausal female subject or (ii) the amount determined for a sample from a known premenopausal female subject, wherein an amount of hLH&bgr;cf in the sample similar to the amount of hLH&bgr;cf in the known postmenopausal sample indicates temporal proximity to the onset of menopa

Abstract: The present invention provides a method of predicting pregnancy outcome in a subject by determining the amount of an early pregnancy associated molecular isoform of hCG in a sample. The present invention further provides a method for determining the amount of early pregnancy associated molecular isoforms of human chorionic gonadotropin (hCG) in a sample. The present invention also provides a diagnostic kit for determining the amount of early pregnancy associated hCG is a sample. The present invention additionally provides an antibody which specifically binds to an early pregnancy associated molecular isoform of human chorionic gonadotropin. Finally, the present invention provides methods for detecting trophoblast or non-trophoblast malignancy in a sample.

Abstract: A centrifugal blower having at least one radial plane dividing its scroll into sub-sections which may vary as to cut-off points and axial and radial dimensions as well as axial displacement to meet requirements of individual application system flow paths.

Abstract: An improved centrifugal impeller having between 20 and 26 rearwardly curved blades blades, a ratio of blade annulus width to wheel radius between 0.31 and 0.37, and an inlet blade angle in the range 32° to 36° and a discharge blade angle in the range 36° to 40°.

Abstract: An improved centrifugal impeller having between 20 and 26 rearwardly curved blades blades, a ratio of blade annulus width to wheel radius between 0.31 and 0.37, and an inlet blade angle in the range 32° to 36° and a discharge blade angle in the range 36° to 40°.

Abstract: A light-weight electric motor driven fluid pump assembly having a molded thermoplastic housing of two parts which form a fluid impervious rotor chamber, a stationary shaft journalled in the housing parts within the chamber and carrying a magnetic rotor and a fluid impeller driven thereby. The housing parts also define inlet and discharge ports in communication with the rotor chamber adjacent the impeller blades. One portion of the housing of one housing part defines a cylindrical thin walled tubular configuration with a cylindrical exterior surface for mounting a stator thereabout. The housing parts are welded together at mating surfaces with the result that neither static nor dynamic seals are required in the assembly.

Abstract: An air treatment system having a relatively large capacity yet a relatively small footprint and low sound level. The air treatment system includes a housing defining adjacent vertically extending inlet and outlet chambers. A blower is mounted within the inlet chamber to move air through the system. A generally planar filter is contained within the outlet chamber and is spaced apart from the rear wall of the housing to define a plenum. The rear wall of the housing is curved so that the plenum is tapered to provide uniform pressure over the face of the filter. The system is adapted to rest upon the floor or mount either vertically or horizontal to a wall. Additionally, the system includes a control mechanism that allows the system to run at full speed for a predetermined period of time and then automatically return to its previous speed level.

Abstract: Methods and apparatus for frequency synthesization are shown for generating an output signal of desired frequency. The frequency synthesizer includes an oscillator for generating an output signal at the desired frequency in response to a control signal. A first detector compares the output signal to a reference signal and generates a first difference signal representative of the differences, preferably in phase and frequency, between the output and the reference signals. A second detector compares the output signal to the reference signal and generates a second difference signal. A controller generates the control signal in response to either the first or second difference signal. A selector member selects between the first and second detectors to provide either the first or second control signal to the controller in response to a selection signal.

Abstract: An axial flow air impeller for automotive radiator fan use and the like comprising a hub carrying a plurality of integrally formed similar circumaxially spaced and generally radially outwardly projecting air moving blades. Each blade has a root end portion integral with the hub and a radially outwardly disposed tip end portion with smoothly curving leading and trailing edges extending therebetween. The leading edge curves substantially forwardly while the trailing edge extends substantially radially to provide for a blade projected width at the tip end portion approximately 40% greater than at the root end portion. The thickness of each blade varies from a maximum at the root end portion to a minimum at the tip end portion with the latter being at least three times the thickness at the blade edge. An integral orifice ring circumscribes the plurality of blades and has a bell mouth at its upstream or downstream end.

Abstract: An axial flow impeller for low pressure ratio applications in the range 1.03 and below and comprising a hub carrying a plurality of similar circumaxially arranged air moving blades. Each blade has a root portion attached to the hub and a radially outwardly disposed tip portion. The camber of each blade decreases from root to tip with 0.1203 root camber and .023 tip camber for a ratio of 5.23 to 1. Pitch also decreases from root to tip with a root pitch of 46.degree. and a tip pitch of 27.4.degree. for a ratio of 1.68 to 1. Chord increases from root to tip with a 1.528 inch root chord and a 2.59 inch tip chord for a 1.7 to 1 ratio. The blade camber and chord both change gradually at the blade inner and mid portions with a 35% camber decrease in the outermost 20% of blade span, and with substantially all of the chord increase occurring beyond the blade midpoint.