Patent US-1902-693943

From Inventing aviation
Jump to: navigation, search

A system of automatic check-valves or shutters to be attached to wings or propellers, opening & closing for efficient movement; also a mesh covering.

½ assigned to Leon F. Moss of Los Angeles, California

Inventor location : No. 1046 West Thirty-seventh street, Los Angeles, Los Angeles county, CA (FIPSloc=6037)


Year filed 1901
Year granted 1902
Office US
Patent number 693943
Inventors Walter J. Bell
Inventor country US
Applicant person
Applicant firm
Applicant type
Applicant is inventor? No
Original title Wing for flying-machines
English title Wing for flying machine
Tech fields propulsion, flapping, airfoil, propeller
Filing date April 23, 1901
Full specification filed date
Application number 1901057072
Grant date February 25, 1902
Granted? No
Publication date
Supplementary to patent FR 57072
Related to aircraft? Yes
Serial number
Patent agent 0
Assigned to Leon F. Moss
National tech categories USPC 244/72
IPCs IPC B64C33/02
CPCs CPC B64C33/02
Family year 1901
First filing? Yes
Number of citations
Cited by
Application ID 46747017
INPADOC family ID 43627807
Number of text pages
Number of diagram pages
Number of figures
Number of claims