Patent FR-1911-426626

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Original diagram page of Patent FR-1911-426626

This seems to have marine applicability as well. Nevertheless, it was given solid FR 6.4 classification. It is oriented to greater speed propulsion.

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Patent family descending from Patent FR-1911-426626


Year filed 1911
Year granted 1911
Office FR
Patent number 426626
Inventors Charles Espinosa, Louis Vinay
Inventor country FR
Applicant person Charles Espinosa, Louis Vinay
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Propulseur à attaque semi-orthogonale
English title Propeller of eight blades, each rotating, giving semi-orthogonal angles of attack
Tech fields propellers, propulsion, marine, design
Filing date 1911/02/27
Full specification filed date
Application number 426626D
Grant date 1911/05/09
Granted? Yes
Publication date 1911/07/11
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent H. Bœttcher fils
Assigned to
National tech categories FR 6.4
IPCs IPC B64C11/00
CPCs CPC B64C11/006
Family year 1911
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 19245377
INPADOC family ID 5201619
Number of text pages 2
Number of diagram pages 1
Number of figures 2
Number of claims 5