US Patent: 909
|
Hydrant
Improvement in Fire-Plugs and Hydrants to Prevent the Water From Freezing in Them
|
|
Patentee:
|
|
| John M. Jorden (exact or similar names) - Baltimore, MD |
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Granted: |
Sep. 08, 1838 |
|
Patent Pictures:
|
|
John M. Jorden Pat. September 8, 1938 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The main point of the patent is a wasting valve below the frost line. The patent includes a "T" handle extended shank wrench with the jaw opening at right angles to the shank. (Figure #4 in the drawing.) The wrench is to remove and replace the valve stem from the valve body. |
|
