RALPH EDWARD ALLEN
Pilots at Crestline Pl, Denver, CO

License number
Colorado A0025000
Issued Date
Dec 2016
Expiration Date
Dec 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
16225 E Crestline Pl, Denver, CO 80015

Professional information

Ralph Allen Photo 1

Prosthetic Adapter For Ski Poles And The Like

US Patent:
4009496, Mar 1, 1977
Filed:
May 24, 1976
Appl. No.:
5/689468
Inventors:
Ralph Samuel Allen - Denver CO
International Classification:
A61F 106
US Classification:
3 128
Abstract:
A prosthetic adapter has been devised which is conformable for use by amputees in various activities without necessity of modifying the prosthesis or artificial limb itself. This is achieved by utilization of diametrically opposed connectors on a grip or handle portion of the article to be manipulated, the fasteners preferably being offset one from another for a distance corresponding to the offset relation of the hook portions on the artificial hand. In those applications where the article is to be freely suspended, such as, a ski pole, a resilient connector is employed in combination with the diametrically opposed connectors for releasable attachment of another hook so that the vertical attitude or disposition of the pole can be regulated.


Ralph Allen Photo 2

Method Of Producing Multi-Functional Filtering Medium

US Patent:
4778602, Oct 18, 1988
Filed:
Apr 28, 1986
Appl. No.:
6/856368
Inventors:
Ralph S. Allen - Evergreen CO
International Classification:
B01D 3904
US Classification:
2105021
Abstract:
A filtering medium is economically produced by treating a highly humified peat source with an alkaline solution followed by mixing with a quaternary amine compound until the humic and fulvic acids have precipitated. A filter cake is formed from the residue by various means including acid oxidation, heating with or without acid reagent or by semi-coking to produce a final dried poduct having excellent filtering properties for hydrophobic compounds, as well as ion-exchange capacities for both anions and cations from aqueous solution.


Ralph Allen Photo 3

Partially Disassemblable Traction Sling

US Patent:
4220147, Sep 2, 1980
Filed:
Dec 5, 1977
Appl. No.:
5/857788
Inventors:
Ralph S. Allen - Evergreen CO
International Classification:
A61H 102
US Classification:
128 75
Abstract:
Traction sling apparatus is adapted for applying a tensile force on a person's neck and spine for infield use. The traction sling includes a chin strap and a neck strap loosely attached together in spaced-apart relation to each other, one end of each strap being detachable from the corresponding end of the other strap to partially disassemble the apparatus facilitating positioning of the sling under the person's head. A leader device is provided for temporary attachment to the detached end of one of the straps for pulling the sling into position under the person's head. The invention also includes an anchor device in the form of a frame detachably connected to the back of a spine board on which the person is laid, and it includes adjustable means for applying tension to the traction sling and to the person's neck and spine.


Ralph Allen Photo 4

Multi-Functional Filtering Medium

US Patent:
4861481, Aug 29, 1989
Filed:
Aug 1, 1988
Appl. No.:
7/226785
Inventors:
Ralph S. Allen - Evergreen CO
International Classification:
B01D 3904
US Classification:
2105021
Abstract:
A filtering medium is economically produced by treating a highly humified peat source with an alkaline solution followed by mixing with a quaternary amine compound until the humic and fulvic acids have precipitated. A filter cake is formed from the residue by various means including acid oxidation, heating with or without acid reagent or by semi-coking to produce a final dried product having excellent filtering properties for hydrophobic compounds, as well as ion-exchange capacities for both anions and cations from aqueous solution.