Abstract: A finger/toe nail clipper assembly 10 comprises a lower arm 2 unitary with vertical side walls 4 and 6. The arms 2 and 14 are spaced in overlying arrangement, fastened at one end 8 and terminating in spaced facing jaw formations 14a and 2a. The jaw formations 14a and 2a comprise concave center blade sections 32 and 34 and angular side blade sections 42 and 44 that terminate in sharpened cutting edges and engage the center blade sections 32 and 34 and the side walls 4 and 6. The side blade sections 42 and 44 function as movable slots to fit various-sized finger/toe nails. When the blades 32 and 34 and 42 and 44 are engaged in "cutting" position, the interior chamber 24 of the device 10 is completely enclosed by the interior facing surfaces of the arms 2 and 14, side walls 4 and 6, and blade sections 32 and 34 and 42 and 44. The invention 10 eliminates the deflection and obstruction problems caused by the conventional mounting pin by providing other mounting means for the actuating lever.

Abstract: A downspout anchor formed of a U-shaped hook section and a spike section permanently joined by an angular arm unitary with the spike section. A collar formation having a through bore therethrough is formed on the angular arm for receiving the hook section, the collar being compressed with the hook section staked therein, effecting the permanent securement. The spike section is provided with opposite ends, one end being rounded for receiving impacts thereto and the opposite end is provided with a bit end, preferably a four-sided tapered portion. The angular arm is formed by forging of a portion of the spike with the angular arm, including the collar formation formed in a cavity of an upset-forging die. The hook section and the spike section are coplanar and laterally offset. The spike section is driven into the building wall without damage to the downspout being mounted.

Abstract: A finger/toe nail clipping and catching device 20 comprises a lower arm 74 unitary with vertical side walls 46 and 48. A rear block 96 between the rear ends of the lower and upper arms 74 and 76 provides more space between said arms 74 and 76 than in the conventional nail clipper. The lower and upper arms 74 and 76 are spaced in overlying arrangement, fastened at one end 82 and terminating in spaced facing jaw formations 45 and 47. The jaw formations 45 and 47 comprise upper and lower concave center blade sections 56 and 50 and upper and lower side blade sections 55 and 57 and 52 and 54 that terminate in sharpened cutting edges. When the blade sections are engaged in "cutting" position, the interior chamber of the device 20 is completely enclosed by the interior facing surfaces of the arms 74 and 76, side walls 46 and 48, and blade sections. The invention 20 eliminates the deflection and obstruction problems caused by the conventional mounting pin by providing other mounting means for the actuating lever.

Abstract: A metering and transfer valve assembly particularly for use in particle analyzing apparatus for the study of particles in liquid suspension, the valve assembly having at least pair of inner and outer valve elements coaxially arranged in face to face frictional sealing engagement with a center valve element, each of the valve elements being independently rotatable, first passages defining a first flow path through the assembly, second passages defining a second flow path through the assembly, the first passages including a metering chamber for measuring and transferring a precise sample aliquot of sample flowing in the first flow path into the second flow path, the first flow path leading to a first exterior location and the second flow path leading to a second exterior location, and a drive fluid being introduced to the second flow path subsequent to transfer of said aliquot thereto for propelling said aliquot along the second flow path to the second exterior destination, the second destination being a flow s

Abstract: A power cam drive assembly for generating and delivering two different degrees of force serially to a body, the second force being greater than the first force. A main drive gear is coupled to a driven cam gear which is coupled to an outer cam shell. A cam core is nested within the cam shell for rotation along an eccentric path therewithin. The cam core has an axial extension also coupled to the driven cam gear. A windable clock spring located between the cam core and cam shell has one end secured to the cam core and the other end locked to the cam shell. A cam roller is disposed within the cam core. The clock spring has a greater rotational torque than required to rotate the cam core.

Abstract: A metering and transfer valve assembly particularly for use in particle analyzing apparatus for the study of particles in liquid suspension, the valve assembly having at least pair of inner and outer valve elements coaxially arranged in face to face frictional sealing engagement with a center valve element, each of the valve elements being independently rotatable, first passages defining a first flow path through the assembly, second passages defining a second flow path through the assembly, the first passages including a metering chamber for measuring and transferring a precise sample aliquot of sample flowing in the first flow path into the second flow path, the first flow path leading to a first exterior location and the second flow path leading to a second exterior location, and a drive fluid being introduced to the second flow path subsequent to transfer of said aliquot thereto for propelling said aliquot along the second flow path to the second esterior destination, the second destination being a flow s

Abstract: A method for assisting installation of an electrical fixture to a mounted electrical junction box. The electrical fixture carries an electrical device having electrical wires to be coupled to electrical lead wires extending from the junction box. The junction box has tabs carrying threaded attachment holes. The fixture has openings alignable with the attachment holes.

Abstract: A method for assisting in the installation of an electrical fixture and an electrical fixture installation assist device formed as an attachment bolt formed as an elongate rod member capable of engagement with the attachment tab of a junction box, a weakened portion provided along the length of the elongate rod at a selected location, at least one end of the rod capable of passing through suitable openings in the fixture, a fastener carried by the end of the rod which extends through the openings in the fixture, the fastener capable of temporarily supporting the fixture adequately spaced from the junction box to facilitate completion of the electrical connection between the junction box and the electrical device carried by the fixture, the fixture capable of being raised along the elongate rod to a level above the weakened portion, the rod capable of being severed at the weakened portion upon the fixture reaching the level and the fastener adapted to be engaged with the remainent portion of the rod member for

Abstract: A method of making liquid toner for electrophotographic imaging by forming a mixture of a polyamide polymer, a good solvent therefor and a particulate pigment, heating the polymer/pigment/solvent mixture to form a solution thereof, cooling the resulting solution to precipitate fine polymer-encapsulated pigment particles of generally uniform size and morphology, removing the precipitated particles, removing the solvent and redispersing the resulting particles in dispersant medium along with a charge-control agent to form the liquid toner. A steric stabilizer can be added to the polymer-encapsulated pigment particle dispersion.

Abstract: A polyamide polymer and one of methanol, ethanol and 2-propanol are formed into a solution by heating at 70 degrees Celsius for approximately two hours, the resulting solution is cooled to precipitate the polymer as particles from said solution. Alternatively, a non-solvent to said polymer may be added to effect precipitation of said polymer particles. The solvent is removed and the particles isolated and dried to form a dry powder. Fine particulate material such as a pigment, may be included with the polymer and solvent in formation of the solution. The resulting solution may be cooled at a rapid rate to precipitate the particles as polymer-encapsulated pigment particles of generally uniform size and morphology, the surface characteristics such as surface area being controlled. The precipitated polymer particles may be classified when dispersed in a dispersant medium, as mono-dispersed particles.

Abstract: A method for forming fine polymer particles, including core/shell polymer composite particles and polymer-encapsulated liposome particles. A polymer solution is formed using a selective solvent which enables the polymer to be precipitated from the solution upon a change in condition thereof. The change in condition may be effected by lowering of the temperature of the solution and/or introducing a non-solvent to the solution. With respect to the formation of the polymer-encapsulated liposome particles, the liposome particles are included when the polymer solution is formed.

Abstract: A method for sampling, metering and delivering precise microliter volume aliquots of a liquid blood sample to mixing and testing means of an electronic blood analysis system for analysis using a sampling and metering valve assembly in which is defined plural through fluid flow paths, one of the flow paths including a loop for metering and isolating a sample aliquot therein, the method comprising the steps of defining first and second dedicated passages within the valve assembly displaced one from the other and from the loop containing the isolated aliquot, introducing an inert gas to the loop to force the aliquot therein to said first dedicated passage at the displaced location thereof, placing the first and second dedicated passages in communicating relationship and introducing lyse reagent to the second dedicated passage to force the isolated aliquot from the first dedicated passage with the lyse reagent to a location exterior of the valve assembly without contaminating any flow paths which has been travers

Abstract: A microfilm camera/processor including an electrophotographic medium mounted for successive translation step by step over plural functional stations for performing functional operations successively on portions thereof, the stations being an electrostatic spin charging station, an exposure station including a shutter mechanism forming an latent charge image, a toning station including a planar development electrode, a liquid toner depositing feed and a mechanism for bringing the electrode surface into and out from close proximity to the latent charge image, a cleaning and drying station forming a dried toner image and a dry transfer station to force the dry toner image below the surface of a softened coating carried by a strip film receptor and a preprogrammed control .

Abstract: A liquid metering and transfer valve assembly having the capability of metering, isolating, transfering and delivering precise microliter volume aliquots of a blood sample, from a source thereof, to mixing and testing chambers of an electronic blood analysis system for analysis, and further, carrying a loop for metering and isolating an additional sample aliquot within the valve assembly in the loop, a first dedicated passageway for introducing a first fluid to the loop to force the additional aliquot from its isolated location to a first dedicated portion of the valve assembly displaced from the loop and a second dedicated portion of the valve assembly to establish a flow path for introducing a lysing reagent to the first dedicated portion to force the additional aliquot from its displaced disposition, as a lyse reagent/aliquot mixture, to a selected additional mixing and testing chamber exterior of the valve assembly without contaminating any interior flow path traversed by a blood sample and associated dil

Abstract: For use in automated or semi-automated hematology analysis apparatus, a method of introducing a volume of blood from a source thereof along a conduit leading to a sampling, metering and transfer valve assembly of the apparatus comprising the steps of drawing a predetermined volume of blood sample from the source, causing the drawn blood sample to travel along the conduit toward the valve assembly, providing detectors adjacent the inlet and outlet of the valve assembly and using vacuum to position the drawn blood sample so that it passes through the valve assembly and is disposed in metering condition within the valve assembly, the positioning being responsive to signals provided by the detectors.

Abstract: Walker having four legged frame defining front and a pair of sides, each having a cross-bar. The invention provides a stabilizing bar secured to the front cross-bar to extend angularly forwardly at an acute angle to provide a non-tippable structure particularly while the user is using the walker as support during the act of assuming a sitting position or rising therefrom. The stabilizer bar can be adjusted as to length and, can be pivotally mounted so that it can be swingably maneuvered to be inactive when the walker is not being used.

Abstract: A liquid sampling, metering and transfer valve assembly for providing plural dilutions of a single liquid sample comprising a pair of outer stationary elements sandwiching a rotatable element, the rotatable element carrying precise volume segmenting passageways, the outer elements carrying counterpart passageways for communicating to the exterior of the valve assembly, one outer element carrying loops each for storing a precise volume of diluent and the other valve elements carrying through passageways for communicating to and from said respective loops. A continuous body of sample is introduced into the valve assembly along a path through a pair of the segmenting passageays and a pair of aliquot portions isolated from said parth. The rotatable element is operated to direct one aliquot along with the content of one loop to an exterior location for mixing. The other sample aliquot is retained.

Abstract: A rotary liquid metering and transfer valve assembly for a diluting system which includes a pair of stationary valve disc elements sandwiching a central, rotatable valve disc element, said disc elements being coaxially aligned and mounted on a spindle. One of the outer stationary elements has a first external loop secured thereto, said loop having a precise interior volume. An aspirator probe is secured to the other of said stationary elements. The central element has formed therein an axial segmenting passageway having a precise interior volume. A second external loop is secured to the center element. The second loop extends outwardly, preferably radially, of said element and has a precise interior volume. Appropriate interior passageways are provided in the outer elements for directing a liquid sample in a continuous path through the valve assembly, the path including the one segmenting passageway and the first and the second external loops.

Abstract: A slide motion sampling valve for use with a particle study device and carrying an expansive type microsyringe having a minimum trapped volume. The sampling valve is formed of a slidably movable member carrying a trapping volume, an expansive element and ejection port in the form of a fine aperture, and a stationary element sealingly engaged with said movable member and carrying an opening leading to the entrance of the sheath flow arrangement. The valve operates between a conditon where the ejection port and the opening are aligned and a condition where communication to the entrance is blocked whereby to isolate the trapping volume from said entrance except during ejection of the predetermined amount. One embodiment described employs a linear sliding motion while another embodiment employs a rotating sliding motion.

Abstract: A cuvette for use with automatic chemical testing apparatus of the type used for making absorbance measurements of blood serum to which reagents are added to cause chemical changes. The cuvette is disposable, is molded from clear plastic resin as an integral member, has a lower vertically arranged elongate body and an upper funnel-like head portion. The head portion enables positioning of the cuvette in the apparatus where used and the lower portion provides a pair of opposing planar walls through which a beam of radiant energy may be projected and relatively arcuate connecting walls to enable the mixing of the liquids within the cuvette. The configuration enables very little sample to be used in making a test.