Abstract:
A feedstock is alkylated in presence of a hydrogen fluoride containing catalyst, which also comprises a carrier. Possible carriers are: a synthetic water soluble polymer like sodium acrylate or a salt like ammonium trifluoroacetate, ammonium sulfate or ammonium methanesulfonate.
Abstract:
A relatively low-cost FMCW radio altimeter includes a voltage-controlled oscillator based upon a GaAs FET. The oscillator produces, for example, a 4.3 GHz microwave signal that is modulated with a triangular wave having a pin-selectable modulation frequency. The modulated signal is amplified by a buffer amplifier, as well as a power amplifier, and connected to an RF output terminal by way of a plurality of microstrips. Reflected signals are received at an RF input and are coupled to a mixer by way of low-noise amplifier. The modulation signal is also applied to the mixer by way of a microstrip coupling device to produce an audio output signal whose frequency is proportional to the altitude above ground. The gains of all of the amplifiers are selected to eliminate the need for hand-tuning of the microstrips and to enable the use of a glass/epoxy circuit board. The output of the radio altimeter is an audio signal whose frequency is proportional to the height above ground, which enables direct digital conversion by way of a frequency-to-binary converter.
Abstract:
The present invention provides an efficient process for the recovery of caprolactam from polycaprolactam-containing waste material. The present process for depolymerizing multi-component waste material comprising polycaprolactam and non-polycaprolactam components to form caprolactam comprises the step of: in the absence of added catalyst, contacting the multi-component waste material with superheated steam at a temperature of about 250 DEG C to about 400 DEG C and at a pressure within the range of about 1 atm to about 100 atm and substantially less than the saturated vapor pressure of water at the temperature wherein a caprolactam-containing vapor stream is formed. The formed caprolactam may then be used in the production of engineered resins and fibers.
Abstract:
A safety system comprising: a passenger seat (10) having fixed anchors (14) adapted to secure and retain a child seat (40; 70); the child seat having clamps (50, 52) for lockingly engaging a respective one of the anchors; and a switch (80, 80') mounted in proximity to at least one of the anchors (14), having an active state and an inactive state, wherein when the clamp lockingly engages a corresponding anchor the state of the switch is changed to provide an indication that a child seat has been installed.
Abstract:
The present invention provides a novel, optionally surfactant-free process for controlling particle number, particle size, and/or particle size distribution. The method of the invention also significantly improves monomer to polymer conversion rates, as well as increases the level of polymer solids which can be emulsified/dispersed in water without polymer flocculation. Specifically, the improved process provides an aqueous dispersion of up to about 48 % polymer solids in water in the absence of surfactant. The resulting fluoropolymers dispersions may be used in resin and coating applications.
Abstract:
This invention is a partially crystalline sodium nonatitanate strontium ion-exchange composition, having an X-ray diffraction d-spacing of from 8 to 9.9 angstroms, an X-ray diffraction 001 peak half-width greater than 1 DEG and less than about 4.5 DEG , and a strontium Kd greater than 20,000 mL/g.
Abstract:
An apparatus (20, 400) comprising: first driven gear (402) operatively linked to a spool of a retractor (20) to rotate the spool (24) in a direction of retraction to cause a seat belt (31) wound thereabout to retract; flexible first driving member (430, 432) having a front end (435) initially maintained out of engagement with the driven gear and pushed into engagement with the first driving member to cause same to rotate; second driving member (420) operatively linked to a rear end of the first driving member for pushing the first driving member into engagement with the driven gear thereby causing the driven gear to rotate.
Abstract:
An apparatus (20, 500) comprising: first driven gear (502) operatively linked to a spool of a retractor (20) to rotate the spool (24) in a direction of retraction to cause a seat belt (31) wound thereabout to retract; a helically shaped first driving member (530) having a front end (536) initially maintained out of engagement with the driven gear and pushed into engagement with the first driving member to cause same to rotate; second driving member (520) operatively linked to a rear end of the first driving member for pushing the first driving member into engagement with the driven gear thereby causing the driven gear to rotate.
Abstract:
A magnetic core-coil assembly generates an ignition event in a spark ignition internal combustion system having at least one combustion chamber. The assembly comprises a magnetic core of amorphous metal having a primary coil for low voltage excitation and a secondary coil for a high voltage output to be fed to a spark plug. A high voltage is generated in the secondary coil within a short period of time following excitation thereof. The assembly senses spark ignition conditions in the combustion chamber to control the ignition event.
Abstract:
A system (10) for the destruction of volatile organic compounds while generating power. In a preferred embodiment the system comprises a combustor (16) and a reaction chamber (18) connected to an exit (86) of the combustor. A primary inlet (84) to the combustor supplies a primary fuel to the combustor. A secondary fuel, comprising air and an amount of one or more volatile organic compounds, is supplied to a compressor (24), which compresses the secondary fuel and directs the secondary fuel to the combustor and the reaction chamber. The system is suitably configured to enable the stoichiometric reaction of the two fuels in a manner sufficient to destroy the volatile organic compounds contained in the secondary fuel and power a turbine engine (26) connected to an exit (90) of the reaction chamber.