Patent US-1910-1050573
An instrument for measuring the buoyancy of the air:
...the object of my invention is to provide means for indicating to the operator the approximate force of the wind and consequently its approximate extent of buoyancy or lifting power; the term "wind" as here used referring to the relative speeds between air and aeroplane. A knowledge of the amount of the available supporting power of the wind, and the actual amount of supporting power being used as support, is highly desirable at all times, and especially so in making a landing, for contact with the ground should be made when the supporting pressure just equals the weight of the aeroplane.
Historic patent classification: USPC 244/1 – Aero/Miscellaneous. Present classification USPC 73/178R. Revealed by search for "Cl. 244" within OGUSPO.
- Tech class CPC G01C21/166: Mechanical, construction or arrangement details of inertial navigation system
Inventor location: Coatesville, Chester County, Pennsylvania
Sources
- Patent 1050573 document and bibliographic info on espacenet
- Patent 1050573 at google patents
- OGUSPO, January 14, 1913, p. 463
| Year filed | 1910 |
|---|---|
| Year granted | 1913 |
| Office | US |
| Patent number | 1050573 |
| Inventors | George A. Spratt |
| Inventor country | US |
| Inventor location | |
| Applicant person | George A. Spratt |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Buoyancy-Indicator |
| English title | Buoyancy-Indicator |
| Tech fields | lift, ascension, airplane, instrument, wind |
| Filing date | 1910-02-23 |
| Full specification filed date | |
| Application number | |
| Grant date | 1913-01-14 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 545369 |
| Patent agent | Howson & Howson |
| Assigned to | |
| National tech categories | USPC 73/178R, USPC 73/180 |
| IPCs | |
| CPCs | CPC G01C21/166 |
| Family year | 1910 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 5 |
| Number of claims | 4 |
