U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "

Mark Twain ; Christmas greetings, 1890

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Lacey, David L.


Primary examiner statistics: 2127 patents; average approval time: 766 days
Assistant examiner statistics: 283 patents; average approval time: 638 days

Patents as Assistant Examiner


1                
NumberTitleIssue Date
4197098Filter bypass measurement section
A damping tube-shaped bypass measurement section with protective maintenance features and continuous flow velocity scanning on absorptive filtration units in the nuclear engineering field is disclosed. The bypass measurement section comprises a tube-shape...
04/08/1980
4190875Apparatus for removing particulate matter from an atmosphere
A compact apparatus for removing harmful particulate contaminants from the air in a work space includes a nozzle for atomizing water. The nozzle is connected to a supply of compressed air and to a supply of water, e.g., an ordinary water tap or storage ta...
02/26/1980
4183736Electrostatic precipitation
An improved procedure is disclosed for the electrostatic precipitation of particulates entrained in a stream of gas between corona electrodes and collecting electrodes. The underlying dc field which serves to charge the particulates and transport them out...
01/15/1980
4170457Air separator method and apparatus
A rotating separator removes air coating from pigmented paper coating liquid stock. The separator employs a cylindrical tank which is mounted for rotation about a vertical axis. The separator is operated in a filled condition and an air laden or froth fra...
10/09/1979
4164399Wet scrubbing device
A wet scrubbing device having a transversely extending trough mounted in a vertically extending scrubbing tower with means to add a scrubbing solution to the trough and means to pressurize the fluid in the trough forcing the scrubbing solution out of the ...
08/14/1979
4162904Silencer-separator device
A silencer-separator having a cylindrical casing of circular cross section which is divided into an upper separator chamber and a lower expansion chamber. An inlet pipe directs a gas stream into the expansion chamber, and a pair of angularly disposed tube...
07/31/1979
4162148Filtering apparatus
A filtering apparatus for the filtering of fibers and equivalent material from flowing air, and in particular for use in textile operations, has been invented in which the fiber material is firmly compacted so that as much fiber material as possible may b...
07/24/1979
4162149Gravel and dust separator and container for vacuum cleaning systems
An enclosed portable container for gravel and dust in a vacuum cleaning system, provided with at least two cyclone air cleaners, having a clean out door, and each cyclone is provided with its own clean out door, is skid mounted for pick up and carry to du...
07/24/1979
4159197Suspension gasket seal and system for baghouse filter units
An improved gasket means for suspending a filter element from a venturi air nozzle in a dust collector. The gasket means is an annular member of elastomeric material and has an annular recess in the inner side wall in which is received the flared bottom l...
06/26/1979
4159196Apparatus for the wet purification of gases
Apparatus for the wet purification of gases, in which a wash liquid is sprayed into a gas to be purified and the gas is then forced or drawn through a separating wall having passage slots. The gas flow is divided up by pairs of such slots into pairs of su...
06/26/1979
4158449Inlet air cleaner assembly for turbine engines
An inlet air cleaner assembly is provided for the air intake of gas turbine engines comprising, in combination, an array of vortex air cleaners removing coarse and heavy contaminant particles, but not light and well dispersed contaminant particles, and an...
06/19/1979
4157899Pulsed backflush air filter
A cleaning system for sleeve-type air filters featuring top removal of sleeves of the filtering media and increased filtering capacity, using sharply pulsed backflushing air of short duration from a single source for cleaning the sleeves which requires su...
06/12/1979
4157900Tube filters
This invention relates to a tube filter assembly of the kind comprising a housing divided by a perforated wall into a dirty gas chamber and a clean gas chamber, and containing filter tubes which are attached to said perforated wall in a sealed fashion and...
06/12/1979
4157903Separation and recovery apparatus for solid or liquid particles entrained in a flowing gas mixture
Excess coating material removed from a coated web 1 by an air doctor 6 and entrained in the exciting gas mixture flow 8 is directed along a plate 9 to effect primary coating material separation and recovery in a chamber 11, whereafter the flow passes alon...
06/12/1979
4157902Air cleaner system for over-highway trucks
An improved air cleaner designed for insertion in the air intake conduits of over-the-road vehicles, to have the same diameter as the conduits, and to be readily replaceable as a unit. The invention particularly includes an air-permeable member which tape...
06/12/1979
4157252Device for forming demonstration cleaning-test bags and for attaching the same to vacuum cleaners
A device for forming demonstration cleaning-test bags and for attaching them to vacuum cleaners comprises basically a cylindrical tube adapted for placement over the air-discharge port of a sweeper, and a co-operating plunger for pushing the central area ...
06/05/1979
4157250Scrubber apparatus for washing gases and having a coarse and fine droplet separator
A washing tower for the washing of gases containing particulates comprises a packed bed through which the gases pass upwardly and jets for spraying water into the gas as it rises within the tower. A preferably chevron-shaped coarse droplet separator is pr...
06/05/1979
4156599Filtering separators for cleaning gases
A filtering separator for cleaning dust and smoke-particle-laden gases comprising a separator, a duct connected to the gas inlet of the separator and containing dust collector bodies around which the dirty gas flows, means for detaching particles which co...
05/29/1979
4155247Multi-part gas sampler
A dynamoelectric machine with a monitoring system for monitoring a gas stream causes a sample of the gas stream to be collected if its characteristics indicate that a material in the dynamoelectric machine is being thermally degraded. The sampling device ...
05/22/1979
4155723Matrix wiring system for use in electrostatic precipitators
A plurality of rappers which are periodically energized to clean the electrodes of electrostatic precipitators are connected by a wiring system which requires less wiring than conventional wiring systems. The rappers are arranged so that several have lead...
05/22/1979
4155725Dust removal from smoke gas or the like
The dust removal plant is comprised of a fan with adjustable guide vanes and a ring gap scrubber with adjustable gap width. A first feedback loop controls the scrubber operation through gap width control for maintaining a constant residual dust content of...
05/22/1979
4155726Horizontally disposed cylindrical fiber bed separator for separation of aerosols from gases
A fiber bed separator and method are provided for separating liquids from gases using cylindrical fiber bed elements disposed in a non-vertical position, preferably at an angle of from 0° to 75° from horizontal, and particularly disposed in a substantia...
05/22/1979
4155414Snow mobile including an improved air cleaner
An air cleaner for an engine of a snow mobile provided with an endless vehicle track driven by the engine, includes an air cleaner main body comprising a duct extending longitudinally of the snow mobile and disposed on a floor covering of the endless vehi...
05/22/1979
4155727Vacuum cleaner bag
A disposable vacuum cleaner bag of paper is insertable into a bag compartment of a cleaner. It has an open dirt intake end and a remote closed end. At the closed end the bag is provided with one or more reinforcing strips having bevelled edges....
05/22/1979
4154585Fluidized bed particulate collectors
A fluidized bed, particulate collector system wherein, in one embodiment, the bed particles have applied thereto at the surface thereof, an additive that serves to adhere particulate, once collected, to the bed particles. The bed particles and/or additive...
05/15/1979
4154588Cylindrical cell self-cleaning filter
A stationary cylindrical drum type filter with self-cleaning capability and suitable for use as a cell or module in a bank of like filter units. A helically wound rod defines a cylindrical shape over which a foraminous web is supported in tubular configur...
05/15/1979
4154589Bag type air cleaning apparatus
A bag type air cleaning apparatus is described for collecting particulate sediment from a source of pressurized air. The apparatus is adapted for connection to the pressurized air source and receives the pressurized air within a cylindrical plenum. A plur...
05/15/1979
4153432Apparatus and method for collection of contaminants
An apparatus and method are provided for controlling airborne contaminants, odors and plume opacities. The apparatus and method of the present invention controls airborne contaminants which are submicron in size or greater and which are contained in a gas...
05/08/1979
4153431Process and apparatus for cleaning prilling tower effluent
Process and apparatus for removing particulate material from a dust laden gas exhausting from the top of a prilling tower which comprises passing the dust laden gas through an aqueous scrubbing liquid spray and thence through a filter onto which the scrub...
05/08/1979
4152128Rotary separator
A separator for separating solid particles from a gas stream in which they are entrained comprises a rotatable member on which the entrained particles impinge. The member rotates about a non-vertical axis. The rotatable member is mounted on a stationary b...
05/01/1979
4152126Equipment for removing dust particles from an air stream
Apparatus for removing dust particles from an air stream includes a tubular housing having an inlet end and an outlet end; a plurality of Venturi tubes having open inflow ends and open outflow ends supported side-by-side within the housing, with their axe...
05/01/1979
4149861Cyclone separator
A cyclone separator comprising a separating tower defining a separating chamber having a gas inlet at the upper portion for introducing gaseous fluid having particles suspended therein with a tangential velocity component, and outlet pipe means co-axially...
04/17/1979
4149863Bag filter apparatus
A fiberglass bag filtering unit adapted for use in filtering gaseous streams containing suspended solid particulates wherein a reverse flow of compressed air is utilized during the cleaning cycle, said unit featuring the advantage of being conveniently ad...
04/17/1979
4146371Electrofluidized bed agglomerator and method of agglomerating
An electrofluidized bed agglomerator and method of agglomerating which comprises agglomerating submicron (and/or supermicron) particulates with a liquid, said liquid acting as a bond between particulates of the agglomerate thus formed to maintain the inte...
03/27/1979
4145193Apparatus for cleaning stack gas and using same for generation of electric power
Stack gas is first passed through a coarse-particle separator and then a prescrubbing tower. Then this gas, which is under pressure, is passed through a pair of differential-pressure (annular-gap) washers. The output side of one of the washers is connecte...
03/20/1979
4145194Cylindrical fiber bed separator element with side-entry inlet duct to core of element
A filter bed separator for separation of liquid or solid particulates from gas streams and/or for washing of accumulated solids from the filter bed. Each separator contains one or more cylindrical filter bed elements, each comprising a non-matting bed of ...
03/20/1979
4144042Baghouse with double pass traveling purge head
A cleaning purge head for a baghouse traveling centrally of the clean air plenum to isolate and back flush with high pressure air successive compartments of filter bags arranged in two parallel banks of filters. Through a depressible seal, the purge head ...
03/13/1979
4144043Three-stage dust collector
A three-stage dust collector incorporating a side outlet cyclone separator as the second dust collection stage. The side outlet separator includes an inlet end, an outlet end and a continuous side wall therebetween. A plurality of side outlet apertures ar...
03/13/1979
4141698Method of cleaning particle bearing gas
Gas bearing particles is cleaned by bringing it together with a friction-electrically charged mist of water droplets, which is formed by the aid of an electrically conducting liquid mist generating nozzle to which water in liquid state which has been de-i...
02/27/1979
4141705Vortex separator
A vortex separator is provided having an annular contaminant chamber for receiving centrifugally separated particles, and a baffle at the entry to or in the annular chamber, to inhibit the whirling of particles retained therein, to prevent abrasion of the...
02/27/1979
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