Abstract: A new process for preparing [1S-[1.alpha.,2.alpha.(Z),-3.alpha.,4.alpha.]]-7-[3-[[[ (1-oxoheptyl)amino]acetyl]amino]-methyl]-7-oxabicyclo[2,2,1]hept-2-yl]-5-h eptenoic acid. New intermediates are also described. [1S-(1.alpha.,2.alpha.(Z),3.alpha.,4.alpha.]]-7-[3-[[[[(1-oxoheptyl)-amino ]acetyl]amino]methyl]-7-oxabicyclo[2.2.1]hept-2-yl]-5-heptenoic acid is useful in the treatment of thrombotic disease.
Abstract: A capacitance liquid level sensor uses an oscillator and sweeps the oscillator frequency at an ultrasonic rate thereby spreading the frequency spectrum and reducing interference from external radio transmitters and interference to local radio receivers.
Abstract: A device for measuring the thickness of a wet or dry paint film applied on a substrate without contacting the film is disclosed. The device uses an optical sensor positioned centrally and coaxially with an inductive eddy-current proximity sensor. The optical sensor measures the distance between the device and the upper surface of the paint film at specular reflection angle. The proximity sensor measures the distance between the device and the upper surface of the substrate. The two distances measured, when compared, produce the film thickness value. The device is capable of accurately measuring thickness of various paint films, such as flat, glossy and metal-flake containing paint films.
Type:
Grant
Filed:
June 1, 1989
Date of Patent:
December 18, 1990
Assignee:
E. I. Du Pont de Nemours and Company
Inventors:
Allan F. Falcoff, Frank S. Fountain, Donald K. Pusey
Abstract: Phosphate-capped polymers and a process for their preparation by contacting a silyl ketene acetal terminated polymer with vinyl phosphonates in the presence of a catalyst.
Abstract: A method of preparing a reinforcing web for a composite structure. A continuous strand is deposited in a bed of pins according to a desired pattern such as overlapped rows of shingled loops.
Abstract: Articles made from amorphous dipolymers of perfluoro-2,2-dimethyl-1,3-dioxole with tetrafluoroethylene having high glass transition temperatures of 140.degree. C. or higher, low indices of refraction, and good physical properties, and low dielectric constants, include, among others, substrates for circuit boards, composites, sheets and films, optical lenses, and electronic current carrying devices.
Abstract: A system for the rapid balancing of revolving shafts, in particular, the revolving shaft of a gas turbine. The system comprises two mutually adjacent bores provided in the stator of the turbine, which can be closed by relevant plugs, and which are collimated on the screw-threaded bores of the rotor. The system also comprises a special rigid rod for elastically holding a screw-threaded balancing mass, and for causing it to rotate.
Type:
Grant
Filed:
April 3, 1989
Date of Patent:
December 11, 1990
Assignee:
Nuovopignone-Industrie Meccaniche e Fonderia S.p.A.
Abstract: 7-Oxabicycloheptane imidazole prostaglandin analogs are provided which are useful in treating thrombotic and vasospastic disease and have the structural formula ##STR1## wherein m is 0, 1, 2, 3 or 4; n is 1, 2 or 3; and p is 1, 2 or 3; Z is --CH.dbd.CH--, --CH.sub.2 CH.sub.2 -- or ##STR2## wherein Y is 1 or a single bond; R is CO.sub.2 H, CO.sub.2 lower alkyl, CO.sub.2 alkali metal, CONHSO.sub.2 R.sub.2 (wherein R.sub.2 is lower alkyl or aryl) or --CH.sub.2 -5-tetrazolyl; A is CHOH, C.dbd.O, ##STR3## (wherein R.sub.3 is H or lower alkyl), or a single bond; R.sub.1 is lower alkyl, aryl, cycloalkyl or H, R.sub.1 can be H only when A is a single bond.
Abstract: A mechanism for the removal of incombustible residues from an incineration plant includes a slag shaft, a slag tank positioned under a mouth of the slag shaft and filled with water extending up to the mouth of the shaft. The incombustible residues dropping from the incineration plant furnace grate through the slag shaft collect in the slag tank and are discharged therefrom by a pusher plate via an upwardly sloping discharge path. The pusher plate is in operative connection with two thrust piston drives via two thrust rods and two rocking levers. The joint connecting the thrust rod with the rocking lever is arranged in such a way that it is not immersed in the water bath either in the rear position of the pusher plate or in the discharge position of the pusher plate. Through the direct coupling to the joint, the thrust rod and the rocking lever can operate in the same vertical plane, so that no additional moments are exerted on the rocking shaft.
Abstract: Aminomethyl oxooxazolidinyl ethenylbenzene derivatives, including the nitriles, sulfoxides, acetamides and nitro compounds, such as l-N-[3-[4-(E-1-methyl-2-cyanoethenyl)phenyl]-2-oxooxazolidin-5-ylmethyl]ac etamide, possess useful antibacterial activity.
Type:
Grant
Filed:
July 7, 1989
Date of Patent:
December 11, 1990
Assignee:
E. I. Du Pont de Nemours and Company
Inventors:
David R. Brittelli, Peter F. Corless, Walter A. Gregory, Chung-Ho Park
Abstract: In a ratio paging system of the type having digital data modulated onto radio signals transmitted from a radio station to receiving units at remote sites, a test system. The test system includes a transmitter test module coupled to a radio transmitter at the station and a test bed module located at the remote site. The transmitter test module includes a microprocessor for generating digital test data, and a modulator coupled to the microprocessor for modulating the test data onto a radio signal and for injecting the radio signal into the station transmitter. The test bed includes a receiver for receiving the modulated radio signal, a demodulator for demodulating the received radio signal to recover the digital test data, and a computer for processing the recovered digital test data to generate paging test information. The mobile test bed also includes means for determining the latitude and longitude of a site to generate digital location data which is used to generate test information.
Type:
Grant
Filed:
August 9, 1988
Date of Patent:
December 11, 1990
Assignee:
AT&E Corporation
Inventors:
Gary A. Price, Daniel J. Park, Mark R. Gehring
Abstract: Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole with at least one fluoro comonomer selected from one or more of ten defined classes having a recited minimum mole proportion of perfluoro-2,2-dimethyl-1,3-dioxole, in no event less than 65%, have high glass transition temperatures of 140.degree. C. or higher, low indices of refraction, and good physical properties, and low dielectric constants, which make them suitable for cladding optical fibers as well as for many electronics applications, including the manufacture of substrates for circuit boards. They all are soluble at room temperature in perfluoro(2-butyltetrahydrofuran), which makes it practical to apply them as coatings from solution.
Abstract: Thermoplastic polyamide compositions consisting essentially of 75-90 weight percent nylon 6, nylon 66 or nylon 66/6 blends (nylon 6.ltoreq.50%) with 10-25 weight percent ethylene ionomer containing softening comonomer are characterized by a unique combination of high stiffness and toughness, and freedom from mold deposit.
Abstract: A braided insitu consolidated structure of fiber reinforced thermoplastic resin strands is formed by braiding the strands on a mandrel and then advancing the mandrel and the braided structure as it is formed continuously through a heating zone to heat the resin to a flowable condition then cooling the structure as it leaves the zone. Pressure may be applied or developed against the braided structure during its formation.
Abstract: Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole with at least one fluoro comonomer selected from one or more of ten defined classes having a recited minimum mole proportion of perfluoro-2,2-dimethyl-1,3-dioxole, in no event less than 65%, have high glass transition temperatures of 140.degree. C. or higher, low indicies of refraction, and good physical properties, and low dielectric constants, which make them suitable for cladding optical fibers as well as for many electronics applications, including the manufacture of substrates for circuit boards. They all are soluble at room temperature in perfluoro(2-butyltetrahydrofuran), which makes it practical to apply them as coatings from solution.
Abstract: A method is provided for inhibiting onset of or treating depression by administering an ACE inhibitor, which is (S)-1-[6-amino-2-[[hydroxy-(4-phenylbutyl)phosphenyl]oxy]-1-oxohexyl]-L-pr oline, fosinopril or zofenopril, alone or in combination with an antidepressant drug such as lithium, over a prolonged period of treatment.
Abstract: An adjustable animal feeder includes a support base, at least two arms, a vertically adjustable support plate having an opening for detachably receiving a dish and locking elements for holding the support plate in a selected position. Because the support plate can be positioned and locked at a selected height, the animal which is to feed or drink from the dish held in the opening of the support plate can be accommodated. Posture of and digestion for the animal can therefore be improved. The feeder also includes tracks beneath the support plate for receiving only the dish, only a closure element or both the dish and the closure element for storage thereon. The support base of the feeder can act as a storage compartment or can be designed to fold to a position requiring minimal space. Further, the arms can be integral with or detachable from the base and can have grooves or pegs thereon for accommodating the support plate.
Abstract: The invention relates to a tool holding system for automatic tool changing in a machine tool, stamping machine or other such machine, wherein the machine has a spindle which has at its free end a gripping means in the form of a sleeve for a tool which can be inserted and removed by a tool changing system, while a draw rod actuating the sleeve by axial displacement is guided in the spindle, and the tool having at the spindle end a tool holding head with an inverted centering frustum cone which can be engaged by a conical inner surface of the sleeve in its clamping position in order to clamp the tool against the spindle.
Type:
Grant
Filed:
April 12, 1988
Date of Patent:
December 11, 1990
Assignee:
AXA-Entwicklungs- und Maschinenbau- gesellschaft fur produktionstechnisch e anlagen und Gerate mbH