FR762697 is a French patent (1934-04-16) associated with Leon Sprink, reproduced in the source archive Sprink dossier alongside his other filings. It is titled "Procédé et dispositifs pour la transformation d'un liquide en vapeur et réciproquement" (process and devices for transforming a liquid into vapour and vice versa).
What the patent is
A French patent filing attributed to Leon Sprink. The archive reproduces a drawing from the patent as fr762-567.jpg.
What it claims
The source lists this filing under the heading of transforming a liquid into vapour and vice versa; it does not present measurement data or independent replication for it.
Relationship to other filings
- FR866491 — Sprink's core French patent.
- EP0016079 / WO8000293 — Apparatus for Amplifying Emissions Due to Shapes — Ravatin's later apparatus for amplifying emissions due to shapes, which cites Sprink as a predecessor but is a separate claimant's work.
Evidence status
As with FR866491, the patent asserts utility rather than demonstrating it. See Sprink Claims vs. Evidence: Patents, Press Reports and the Absence of Independent Validation.
Source notes & attribution
- Rex Research archive dossier on Leon Sprink: rexresearch/04350b3c16476251.md .
- https://rexresearch.com/sprink/sprink.htm