Patent US-1844-3523
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This patent defined the Pratt truss that Octave Chanute and the Wright brothers used.
Caleb Pratt was in Boston, Massachusetts. Thomas Willis Pratt was in Norwich, Connecticut. There is an article about Thomas Willis Pratt on English Wikipedia.[1]
References and sources
- Patent 3523 document and bibliographic info on espacenet
- Patent 3523 at google patents
- Archive record on this patented idea at Lilienthal museum patents
Year filed | 1843 |
---|---|
Year granted | 1844 |
Office | US |
Patent number | 3523 |
Inventors | Caleb Pratt, Thomas Willis Pratt |
Inventor country | |
Applicant person | Caleb Pratt, Thomas Willis Pratt |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | Yes |
Original title | Truss-frame of bridges |
English title | Truss-frame for bridges, later called the Pratt truss |
Tech fields | |
Filing date | March 22, 1843 |
Full specification filed date | |
Application number | |
Grant date | April 4, 1844 |
Granted? | Yes |
Publication date | April 4, 1844 |
Supplementary to patent | |
Related to aircraft? | No |
Serial number | |
Patent agent | |
Assigned to | |
National tech categories | construction, structure |
IPCs | |
CPCs | CPC E01D15/127 |
Family year | 1844 |
First filing? | Yes |
Cites these patents | |
Citations from after 1930 | |
Application ID | |
INPADOC family ID | |
Number of text pages | 2 |
Number of diagram pages | 1 |
Number of figures | 5 |
Number of claims |