Patent US-1909-991794

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Improvement in 'air-gripping' propeller blades, relevant to lifting and driving

  • Tech class CPC B64C39/005: Aircraft not otherwise provided for with wings, paddle wheels, bladed wheels, moving or rotating in relation to the fuselage about a horizontal transversal axis
  • Inventor location: Chicago, IL, Cook county, IL (FIPSloc=17031, imputed by HistPat)
  • Witnesses as shown on the diagram pages: John Enders and Allen F. Huber
  • Witnesses as shown on the final text page: Ralph Schaefer and John Wilson

Sources


Year filed 1909
Year granted 1911
Office US
Patent number 991794
Inventors Daniel P. McLaughlin
Inventor country US
Inventor location
Applicant person Daniel P. McLaughlin
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Flying-machine or airship
English title Flying-machine or airship
Tech fields propulsion, propeller, helicopter, airplane, airfoil
Filing date 1909/06/30
Full specification filed date
Application number 1909505230
Grant date 1911/05/09
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number 505230
Patent agent Dyrenforth, Lee, Chritton, and Wiles
Assigned to
National tech categories USPC 244/20
IPCs
CPCs CPC B64C39/005
Family year 1909
First filing? Yes
Cites these patents
Citations from after 1930 1
Application ID 47444701
INPADOC family ID 43898571
Number of text pages 8
Number of diagram pages 4
Number of figures 9
Number of claims 33