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Patent No. 5265827

Paddle Wheel Plane

An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.

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Class 73/863.44 - Oscillating or reciprocating


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the contacting means is mounted for
No. of patents: 17
Last issue date: 04/29/2008


NumberTitleIssue Date
7363830Discrete volume sampling device using a vacuum
A discrete volume vacuum sampling device is provided with a vacuum tube, a sample tube, and a sample container. The container defines a discrete volume of product to be sampled from a product bed within a processing machine. The sampler tube extends between the cont...
04/29/2008
7168332Powder sampling device
The powder sampling device comprises, next to a vertical channel (1) a drawer that is also vertical which may be lowered so that a groove (5) passes into a sampling mouth (12). A flap (15) may be extended to direct the powder towards the ...
01/30/2007
7160511Liquid pipetting apparatus and micro array manufacturing apparatus
A liquid pipetting apparatus for dispensing liquid of minute volume for use in a survey instruments of a hemanalysis machine, a genetic screening, and a pharmaceutical screening, etc., is disclosed. The liquid pipetting apparatus comprises a liquid holding member fo...
01/09/2007
7121156Proppant sampling
Methods and systems useful for obtaining a representative sample of solid particles from a pneumatically conveyed stream of solid particles. One preferred method and system includes establishing a pneumatic flow of solid particles in a gas stream through a sampling ...
10/17/2006
6638481Plug flow cytometry for high throughput screening and drug discovery
An apparatus for drawing and supplying multiple samples for rapid processing in flow cytometry. The apparatus comprises a reciprocating valve and at least one syringe. The invention is also a method for rapidly processing multiple samples in flow cytometr...
10/28/2003
6417008Tube bottom sensing for small fluid samples
A pipetting station having a bottom sensing device is provided in conjunction with one of any known liquid level sensing devices. The bottom sensing device includes a pipetting probe spring mounted to a pipetting arm of the pipetting station. The bottom s...
07/09/2002
5763278Automated pipetting of small volumes
A device for automated pipetting of small volumes of liquid has a pipetting needle, a diluter having a liquid output with a syringe and a valve, the syringe including a piston and a piston drive. Tubing interconnects the needle and the liquid output of th...
06/09/1998
5044380Apparatus and method for studying smoke components
An apparatus for collecting samples of smoke components from predetermined segments of drawn smoke during a predetermined time interval is disclosed. The apparatus includes a smoking machine for drawing successive individual puffs of smoke from a cigarett...
09/03/1991
4393304Gas analyzer of the fluid modulation type
A gas analyzer of the fluid modulation type includes at least one cell, structure for alternately introducing a sample gas to be analyzed and a reference gas into the cell, a detector for analyzing a property of the sample gas, and an arrangement for alte...
07/12/1983
4353484Coffee filter with flow diverter
This invention relates to filters for the brewing of coffee. Specifically to the fast brewing drip type suitable for home use. The basis of the invention is in the addition of a diverting valve to allow for the transfer of brewed coffee away from the hold...
10/12/1982
4126043Apparatus for dividing a liquid into precisely defined aliquots
An amount of liquid is divided into precisely defined aliquots by discharging the liquid by centrifugal force from a single radial opening in a spinning bowl against a circular row of knife-edged partitions defining receptacles therebetween....
11/21/1978
4056983Flow diversion sampler
A sampling device for taking a complete cross section of a stream of material flowing through a conduit system. The device consists of a container into which material is fed through a flexible conduit that can be moved to discharge either into a main cond...
11/08/1977
4041762Swing chute sampler
A swing chute sampler for diverting the flow of material from a mainstream comprising an external housing having upper and lower openings, a side-arm chute, a fixed internal chute and an internal swing chute pivoted near the upper edge of the opening in t...
08/16/1977
4026154Sample taking apparatus
Apparatus for taking samples from a stream of material discharged along a path from a conveyor comprises a gate movable between either one of two different positions in one of which the gate lies in the path of the stream of material and in the other of w...
05/31/1977
4007638Liquid sampling
Liquid samples of like composition and like or unlike volume are collected simultaneously. Liquid is withdrawn continuously from a body of liquid to be sampled. The withdrawn liquid is passed continuously into and fills a confining region having multiple ...
02/15/1977
3986402Liquid sampling
Liquid samples are collected simultaneously by intermittent diversion of a stream withdrawn from a body of liquid to be sampled and passed by a diversion locus into a splitting region having multiple outlets. The liquid is prevented from flowing through t...
10/19/1976
3955422Sample selector apparatus and method
A method and apparatus which are particularly adapted for use in the selective and coordinated abstracting of samples to be examined. Essentially, the selector apparatus which has a support means may embody delivery means, receiving means, collection mean...
05/11/1976
 
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