Louis Gathmann
Louis Gathmann was a well-known inventor who moved from Germany to Chicago to Washington, DC.[1] He had aero patents and gun patents.
His children knew of his work and participated at least a bit. He licensed US871926 to Emil Gathmann of Bethlehem PA, and the witnesses on the patent were Paul and Olga Gathmann. In DC in 1904 he was listed as an engineer with an address 1839 Vernon Av, NW. At the same address was Otto Gathmann, a "clk" (clerk I assume).[2] All of these appear to have been his children, according to the Wikipedia entry.
This source says he had a british patent filed in 1904 with the eventual number 18560 (perhaps next to the one granted in 1907) for an improvement in aerial propellers.[3]
In a 1907 patent he describes himself as a "consulting engineer", with the address 2017 Kalorama NW, Washington DC.
Patents whose inventor or applicant is Louis Gathmann
- Patent US-1889-424969 (English title: Constructing and loading cannon, Filing date: 1889-03-26)
- Patent US-1892-502713 (English title: Projectile, Filing date: 1892-04-19)
- Patent US-1892-511418 (English title: Projectile, Filing date: 1892-04-19)
- Patent GB-1900-17367 (English title: Improvements relating to Flying-machines, Filing date: 1900-10-01)
- Patent US-1907-871926 (English title: Air-propeller for flying-machines, Filing date: 1907-03-06)
- Patent GB-1907-18559 (English title: Improvements in Dirigible Air Ships, Filing date: 1907-08-16)
- Patent GB-1907-18560 (English title: Improvements in Air Propellers for Flying Machines, Supplementary to patent: Patent US-1907-871926, Filing date: 1907-08-16)
- Patent FR-1907-381102 (English title: improvements brought to dirigibles, Filing date: 1907-08-23)
- Patent FR-1908-381251 (English title: Improvement to aerial propellers, Supplementary to patent: Patent US-1907-871926, Filing date: 1907-08-24)
- Patent DE-1907-203785 (English title: Propeller, Filing date: 1907-08-25)
References
- ↑ Louis Gathmann on English Wikipedia
- ↑ Boyd's Directory of the District of Columbia 1904, under "Gathmann", with no page number
- ↑ https://airandspace.si.edu/collection-archive/louis-gathmann-collection/sova-nasm-xxxx-1095#:~:text=Gathmann%20also%20had%20an%20interest%20in
| Names | Louis Gathmann |
|---|---|
| Birth date | August 11, 1843 |
| Death date | June 3, 1917 |
| Countries | US, DE |
| Locations | Washington, DC |
| Occupations | inventor, engineer, consulting engineer |
| Tech areas | |
| Affiliations | |
| Wikidata id | Q109563 |
