Patent GB-1918-127418
Jump to navigation
Jump to search
"Aerial machines without aerostats; propelling. A rotary lifting-propeller for aerial machines comprises an annular member [whose] upper surface cambered . . . and formed with radial blades . . . An aerial machine fitted with front and rear lifting-propellers . . . and a screw propeller . . ."
- Indeed, two lifting propellers shown in diagram.
- Tech class CPC B64C27/04: Helicopters
- Inventor occ and loc: Mechanical and electrical engineer, resident of the Bell-Villa Apartments, 100 Lippincott Street, City of Toronto, County of York, Province of Ontario, Canada
Inventor signed. 0 days later, this patent was recorded as filed at the patent office.
Patent family descending from Patent US-1918-1374256
- Patent US-1918-1374256 (English title: Aerial lifting device)
- Patent GB-1918-127418 (English title: Improvements in Aerial Lifting Devices, Supplementary to patent: Patent US-1918-1374256)
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
| Year filed | 1918 |
|---|---|
| Year granted | 1919 |
| Office | GB |
| Patent number | 127418 |
| Inventors | Cornelis Hendrik van Asperen |
| Inventor country | CA |
| Applicant person | Cornelis Hendrik van Asperen |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Improvements in Aerial Lifting Devices |
| English title | Improvements in Aerial Lifting Devices |
| Tech fields | propulsion, helicopter, lift |
| Filing date | 1918-06-10 |
| Full specification filed date | 1918-11-22 |
| Application number | 951918 |
| Grant date | 1919-06-05 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | Patent US-1918-1374256 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | G. F. Redfern & Co. |
| Assigned to | |
| National tech categories | |
| IPCs | IPC B64C27/04 |
| CPCs | CPC B64C2700/6281, CPC B64C27/04 |
| Family year | 1918 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | 21274631 |
| INPADOC family ID | 24171835 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 1 |
