Abstract: This invention relates to the preparation of N-(phosphonomethyl)glycine (“glyphosate”) from N-(phosphonomethyl)iminodiacetic acid (“PMIDA”), and more particularly to methods for control of the conversion of PMIDA, for the identification of reaction end points relating to PMIDA conversion and the preparation of glyphosate products having controlled PMIDA content.

Abstract: The present disclosure describes deoptimized foot and mouth viruses and their use for prophylactic and therapeutic treatment of mammalian subjects. The recombinant viruses provided herein include alterations in several genomic regions as well as Differentiating Infected from Vaccinated Animals (DIVA) markers.

Abstract: The present disclosure describes deoptimized foot and mouth viruses and their use for prophylactic and therapeutic treatment of mammalian subjects. The recombinant viruses provided herein include alterations in several genomic regions as well as Differentiating Infected from Vaccinated Animals (DIVA) markers.

Abstract: The invention includes ABACP nucleic acid molecules and polypeptides involved in modulating seed development, stomate regulation and plant adaptation to environmental stresses such as drought, cold and a high carbon dioxide environment.

Abstract: An optical range finder includes two detectors for minimizing frequency dispersion affects of the detectors on the system. The optical range finder is calibrated by locking a voltage controlled oscillator onto adjacent null modulation signal frequencies and determining a calibration time for each adjacent frequency. Once the calibration time is determined, the range finder transmits its modulated light signal to a target device and back. The signal reflected back is detected and a measurement time delay is calculated for each of the adjacent modulation signal frequencies. From these measurements, the actual distance between the target and the device can be calculated. The multiple frequency measurements allows for statistical averaging of random errors in the system.

Abstract: A master cylinder assembly in which the plastic reservoir has mounting tubes fitting about mounting bosses or into recesses of mounting bosses of a master cylinder body. The tube outer ends have elastic seals integrally formed thereon which engage a wall surface of the mounting bosses in sealing relation. The seals may be lip type or O-ring type seals.

Abstract: A reservoir diaphragm for a vehicle brake master cylinder fluid reservoir has a passage in communication with the atmosphere defined between the reservoir cover and diaphragm. The diaphragm has a slot receiving a projection from the cover to normally form a seal. The seal prevents pasage of air between the reservoir and the passageway when the reservoir substantially equals the atmospheric pressure. The diaphragm is movable with respect to the projection to open the seal when the pressure in the reservoir is less than the atmosphere thereby allowing air from the atmosphere to enter the reservoir.

Abstract: A diaphragm for a vented master cylinder reservoir which further includes means for opening the slit thereby assuring venting of the master cylinder reservoir is provided. The slit opening means are configured in such a manner that contact of the slit opening means with the master cylinder cap will cause the diaphragm to be stressed and to elastically deform, therefore assuring the opening of the venting slit.

Abstract: A dual master cylinder for a vehicle brake system includes a housing having a housing bore with a open end and a closed end. The open end has a piston stop. Two pistons are reciprocably received in the housing bore and define therewith a first pressurizing chamber between the pistons and a second pressurizing chamber between the second piston and the housing bore closed end. Each piston has a piston cavity opening into the respective pressurizing chamber. A first locator member and a second locator member are respectively received in the pressurizing chambers and slidably mounted in the piston cavities of the respective pistons. The first locator member projects into engagement with the rear wall of the second piston and the second locator member projects into engagement with the housing to establish the pistons at respective normal rest positions enabling fluid communication through the port between the fluid reservoir and the respective chambers.

Abstract: A dipstick in the brake fluid reservoir of a brake system of the type having one or more pistons carrying a seal of elastomeric material subject to swelling upon exposure to the presence of a foreign fluid other than brake fluid. A piece of elastomeric material of the same type as the elastomeric material of the piston seal is mounted on the dip stick at a level thereon to be consistently submerged in the brake fluid whereby the presence of the seal swelling foreign fluid in the brake fluid reservoir will be detectable by examination of the piece of elastomeric material upon removal of the dip stick from the reservoir.

Abstract: An apparatus is provided for connecting a master cylinder to a brake booster of the type which has a shell with a planar front surface and a plurality of threaded studs displayed about the bore and projecting from the planar front surface. The master cyliner has a necked down end portion defining a shoulder facing the booster. The master cylinder has a circumferential extending groove provided in the necked down end portion and spaced longitudinally from the shoulder. An adapter has a central aperture to receive the necked down end portion of the master cylinder and a plurality of apertures which register with the plurality of threaded studs. A lock ring or other locking device is received in the groove of the master cylinder and effective to lock the adapter to the master cylinder and in engagement with the shoulder. A plurality of threaded nuts are installed on the threaded studs to retain the adapter in engagement with the planar surface of the booster shell.

Abstract: A master cylinder having pistons sliding through high pressure lip seals during operation. When the pistons are at rest during release, the seals are in an open position relative to the pistons sufficient to permit the passage of fluid therepast for compensation. The open positions are attained by providing piston portions of smaller diameter than the high pressure seals. These piston portions may be at least parts of piston beveled edge surfaces, or such edge surfaces in conjunction with notches or grooves which are of smaller diameter than the high pressure lip seals. The notches or grooves may extend circumferentially completely around the pistons, or may be arcuately extending circumferentially spaced notches or grooves.

Abstract: In order to accommodate all of the tolerances along the bore centerline plane of the reservoir mount for a master cylinder, the reservoir bayonets or projections extending into the boss bores of the master cylinder body are at a reduced diameter established by worst case tolerancing. This results in greater side-to-side clearance perpendicular to the bore center-line than is desired in many instances, giving a relatively loose reservoir fit. To reduce this side-to-side clearance, locally raised ribs or the like are added to the reservoir mount bayonets to better match the diameter in the machined body reservoir bosses provided by the boss reservoir mounting surfaces. The clearance is reduced by locally increasing the diameter of the reservoir bayonet mounts based on worst case tolerancing considering only one reservoir mounting member and its associated mounting boss independently of the other mounting member and its associated mounting boss.

Abstract: A master cylinder assembly has a low pressure, high volume displacement quick take-up chamber and a high pressure, low volume displacement pressurizing chamber formed by a stepped bore and a stepped piston. A compensation control and blow-off valve unit has a peripheral lip seal type valve providing compensation flow on brake release but preventing flow from the quick take-up chamber during brake apply. A normally closed check valve can open to provide communication between the quick take-up pressurizing chamber and the fluid reservoir. When the pressurizing cup for the high pressure chamber closes its compensation port, the check valve is subjected to the pressure in the quick take-up pressurizing chamber. Initial fluid flow is obtained from the quick take-up chamber past the pressurizing cup into the high pressure chamber.

Abstract: A quick take-up valve in a quick take-up master cylinder assembly which reduces fluid flow noise and restriction caused by fluid flowing in one mode of operation through an incipiently or substantially closed valve spring coil stack. The check valve arrangement has a coil compression limiting device and also has the outlet orifice so positioned as not to require fluid flow through the check valve spring coils while the check valve is open.

Abstract: A Doppler radar signature simulator decoy for protecting a helicopter under attack by hostile weapons which home in on a Doppler radar return signal from the helicopters rotors. The decoy returns a strong radar signal which duplicates a relatively weaker signal emitted from the helicopter rotors, leading hostile weapons to the decoy.

Abstract: A phase detector which includes gated current generators for converting one of two signals which are to be phase compared into a periodic signal of generally triangular form. The other of the two signals triggers periodic sampling of the triangular signal. A "hold" capacitor stores the sampled signals between sampling intervals, and provides the phase detector output signal. Logic gating disables the current generators during the sampling intervals so that the amplitude of the triangular waveform will not change during those intervals.

Abstract: The lip of a cup seal for use in a master cylinder incorporates a semi-torus of material extending axially outward from the outer peripheral end of the seal lip. The added material is positioned immediately adjacent, but slightly radially inward from, the sharp lip edge. This added material prevents the lip from hanging up on the edges of compensation ports which open into the master cylinder bore, particularly during initial installation.

Abstract: Petroleum sulfonates useful to impart micellar characteristics to mixtures of hydrocarbon and aqueous medium are obtained by reacting a hydrocarbon gas oil feedstock (average molecular weight 250-700; A/AP aliphatic to aromatic proton) ratio 5-50 moles/mole, 30-100% of the feedstock molecules contain aromatic portions and the A/AP ratio of the aromatic portion being about 3-20 moles/mole) with a solution of EDC (ethylene dichloride) containing 0.1-0.3 lb. liquid SO.sub.3 /lb EDC. The SO.sub.3 concentration is about 0.1-0.3 lb. of SO.sub.3 /lb of gas oil feedstock. Reaction takes place in a back-mix tubular reactor wherein at least about 4 parts of reaction products are recycled per 1 part of reaction products withdrawn and wherein the gas oil feedstock plus recycled reaction products and the SO.sub.3 /EDC streams entering the reaction zone are in turbulent flow. Velocity ratio of the feedstock plus recycled reaction products stream to the SO.sub.3 /EDC stream is at least 4:1, respectively.