Schaeffer (steam generator inventor)

Schaeffer is the surname of the inventor to whom a steam generator is attributed in a source dossier at [source note 1]. The dossier is the only source available for this page.

What is known

Very little is established about this person from the available record.

• The dossier is filed under the archive's energy topic, and the device attributed to Schaeffer is a steam generator.
• The archive path uses the spelling schaeffe; the surname is generally rendered Schaeffer.
• Schaeffer is named as the inventor associated with the steam generator described in the source dossier "The steam generator" (dossier 22).
• The dossier presents the device through a set of eight figures and accompanying archive text.

What is not supported

The source names him as Karl Schaeffer of Chicago, born in Germany, a graduating student of a Berlin trade-technical school in 1924, aged 67 when first interviewed in 1973, and the holder of US Patent #3,791,349 (granted February 12, 1974). He is described as deceased by the time of the 1977 article. Specifically:

• Biographical detail: first name Karl; German origin; Berlin technical school, 1924; age 67 in 1973; based in Chicago.
• Patent: US #3,791,349, granted February 12, 1974.
• No record of a built or tested device, and no measurement results.
• No indication of whether Schaeffer published, patented, or demonstrated the device elsewhere.

Because the evidence is limited to a surname in an archive dossier, this page should not be expanded with inferred biography. If a patent number or fuller name becomes available from the original dossier page, this entry can be revised.

Status of the attribution

The attribution of the device to Schaeffer rests on the archive dossier's own framing. That is a provenance statement — the archive collected material under this name — and not an independent biographical or technical finding. See Schaeffer Steam Generator for the device and Schaeffer Steam Generator Claims vs. Evidence: An Archive Dossier Without Test Data for the evidentiary status of the claim.

Open questions

• Correct spelling and full name of the inventor.
• Whether the reported over-unity performance claims can be independently replicated.
• Whether the dossier reproduces press coverage that would establish dates and context.

Related

• Schaeffer Steam Generator — the device attributed to Schaeffer.
• Schaeffer's Steam Generator: A source Dossier — the source article for the dossier.