A method for controlling the height of the fluidized bed wherein variations in the density of the bed are taken into account by taking simultaneous differential pressure measurements at different vertical elevations within the vessel, averaging the differential pressures, determining an average fluidized bed density, then periodically calculating a weighting factor. The weighting factor is used in...

An ink jet printer having a drop generator for directing streams of ink droplets through deflection electrodes so that droplets travel to either a gutter or to selected regions on a printing medium. The gutter is constructed of a first low surface energy material such as parylene coated to a high surface energy material such as stainless steel. Only a portion of the steel is coated so that a bound...

PURPOSE:To reduce the interference of a seat-back with a seat cushion when tilting the seat-back forwards, by a method wherein a seat cushion for a rear seat is divided into two half parts, and the lower end of a front half part is pivotally supported by a floor. CONSTITUTION:The seat cushion 8 is formed of the front half part 9 hinged at a lower part thereof and a rear half part 10. A front end l...

A boom, forming part of the equipment of an excavator, has an upper portion (2) pivotally-mounted on a lower portion (1) which is pivotally- connected (9) to the excavator superstructure (7). The upper boom portion (2) is additionally coupled to the superstructure (7) on both sides of the said pivotal mounting (3) via two pivotal shafts (4b, 4a) and, respectively, a variable-length adjusting membe...

Copper lead frame for manufacturing a semiconductor chip carrier has signal leads extending from outer leads about the periphery of the frame and temporarily attached to a ground bus toward the center of the frame by fusible links. Ground leads extend from bus alternately with signal leads and have fusible links at outer leads which are melted to isolate them from signal leads and eliminate noise ...

There is disclosed a method for depositing a diamond or diamond-like carbon film on at least one substrate employing a hydrocarbon gas and at least one gas which preferentially removes by chemical sputtering other forms of carbon, especially graphite from said film to thereby obtain useful carbon film coated products.

An ink jet printer having a drop generator for directing streams of ink droplets through deflection electrodes so that droplets travel to either a gutter or to selected regions on a printing medium. The gutter is constructed of a first low surface energy material such as parylene coated to a high surface energy material such as stainless steel. Only a portion of the steel is coated so that a bound...

The present invention provides an apparatus and process for treating sewage with activated sludge. The apparatus has a comminutor (1) for reducing the particle diameter of the sewage (if necessary) to not more than 20 mm, an aeration column (2) at least 10 m high to which the sewage is fed via pump (13). Sewage and activated sludge are drawn from the top of the column (2) by way of a pipe (14), ae...

A high-frequency circuit (11) having at least a semiconductor circuit element (12) which is arranged on a first surface (13) of an insulating substrate (14). At least one (19a, 19b) of the output terminals (17, 18a, 18b, 19a, 19b) of the semiconductor circuit element (12) is electrically coupled to a ground plane (16) through a capacitive element (20) and metallized holes (21, 22). According to th...

1. Aerosol can for dispensing pressurized liquids, particularly polyurethane foam initial products, with which is associated an additional container (6), which forms an undetachable constructional unit with the aerosol can (1), the inner area of aerosol can (1) and the inner area of additional container (6) being separated from one another by a common wall (18), which can be opened at at least one...

This invention relates to the introduction of viable cells into a fibrous lattice by surgical, force-utilizing, or other manipulative techniques, all of which are referred to herein as "seeding." One embodiment comprises an autografting technique which involves intact tissue. Other embodiments which involve the distribution of an aqueous suspension of cells comprise centrifugal, spraying, pipettin...

Method for bonding of anchoring bolts in boreholes, in which an anchoring bolt is pushed with a rotary motion into a twin-chamber cartridge, one compartment of which is filled with a polyisocyanate component and the other one with a hydroxyl component, prepolymer from the conversion of polyisocyanates with one or several difunctional polyols of the molecular weight range 800-5000, preferably 1600-...

A pressure vessel which combines more than one media which is used to remove contamination from water. The media are capable of three functions, particulate and colloidal filtration, adsorption or organic substances and ion exchange dissolved mineral removal. The vessel has part of it transparent to indicate when it is no longer functioning.

1. Apparatus for mixing and spraying a mixture consisting of at least two components, for example liquids, and a propellent gas, comprising two containers (1, 7) arranged one within the other for receiving the components to be mixed and the propellent gas, and a discharge valve (2) arranged on the outer container (1) for acting by way of an actuating element (12) on a parting zone (10) of the inne...

1. Apparatus for mixing and spraying a mixture consisting of at least two components, for example liquids, and a propellent gas, comprising two containers (1, 7) arranged one within the other for receiving the components to be mixed and the propellent gas, and a discharge valve (2) arranged on the outer container (1) for acting by way of an actuating element (12) on a parting zone (10) of the inne...

A method for the selective extracorporeal precipitation of low density lipoproteins or beta -lipoproteins from whole serum or plasma is characterised in that heparin in a buffer is added to the whole serum or plasma, and the beta -lipoprotein-heparin complex which is formed is precipitated at the isoelectric point at a pH of 5.05 to 5.25 and then removed, or the precipitate or filtrate is analys...

PURPOSE:To eliminate the influence of a difference in the reception time of a signal from a lower-rank station upon a higher-rank station, by storing the signal sent from the lower-rank station in a storage temporarily and sending it out to the higher-rank station by a synchronizing signal from a master station. CONSTITUTION:The information signal sent from the higher-rank station is demodulated b...

This invention concerns stabilized influenza virus vaccines and a method of stabilizing influenza viruses and vaccines by the addition of protein hydrolysates and/or amino acids.

A ladder set comprises a number of mutually interconnectable sections whereby the effective length of the ladder may be varied. Each section comprises two uprights 1 and a number of rungs 2 removably fixed therebetween, both uprights 1 and rungs 2 being in the form of profile sections. Each upright 1 has a longitudinal substantially enclosed pocket 4 for accommodating longitudinal projection membe...