| 1 |
Means to prevent flooding of feedwater heaters |
US20519738 |
1938-04-30 |
US2267941A |
1941-12-30 |
MILLER CHARLES J |
|
| 2 |
Valve for feed water heaters |
US17805337 |
1937-12-04 |
US2157774A |
1939-05-09 |
EMANUEL RAWSON |
|
| 3 |
Boiler feeding apparatus |
US14313137 |
1937-05-17 |
US2151125A |
1939-03-21 |
DARTREY LEWIS |
|
| 4 |
Pipe joint |
US8755436 |
1936-06-26 |
US2117152A |
1938-05-10 |
PIETRO CROSTI |
|
| 5 |
Feed water heating system |
US3636435 |
1935-08-15 |
US2105822A |
1938-01-18 |
EMANUEL RAWSON; ARTHUR WILLIAMS |
|
| 6 |
Locomotive feed water heating system and apparatus |
US2139435 |
1935-05-14 |
US2095239A |
1937-10-12 |
COFFIN JR JOEL S; SCHELLENS CHRISTOPHER A |
|
| 7 |
Fluid displacement apparatus |
US1945435 |
1935-05-02 |
US2081050A |
1937-05-18 |
DOLE MYRON W |
|
| 8 |
Feed water heating system for boilers |
US72875434 |
1934-06-02 |
US2078785A |
1937-04-27 |
ARTHUR WILLIAMS; ERICH HENKEL |
|
| 9 |
Method of cleaning feed water heaters |
US60534932 |
1932-04-14 |
US2057189A |
1936-10-13 |
GRAHAM FRANK H; WASHBURN VERN D |
|
| 10 |
Method of cleaning feed water heaters |
US71547234 |
1934-03-14 |
US2039163A |
1936-04-28 |
GRAHAM FRANK H; WASHBURN VERN D |
|
| 11 |
Feed water heater for locomotives |
US718735 |
1935-02-19 |
US2031468A |
1936-02-18 |
DOLE MYRON W |
|
| 12 |
Boiler feed apparatus |
US47132730 |
1930-07-28 |
US1960914A |
1934-05-29 |
MCCOY VERL E |
|
| 13 |
Method of feeding water to boilers |
US58166231 |
1931-12-17 |
US1957553A |
1934-05-08 |
OSTERMANN RUDOLF M; SHERIDAN SIDNEY A |
|
| 14 |
Preheating boiler feed-water |
US56875131 |
1931-10-14 |
US1957552A |
1934-05-08 |
OSTERMANN RUDOLF M |
|
| 15 |
Water heater |
US47886730 |
1930-08-30 |
US1954829A |
1934-04-17 |
LAWRENCE RICHARDSON |
|
| 16 |
Combination water circulator and feed water heating unit for boilers |
US64406032 |
1932-11-23 |
US1941286A |
1933-12-26 |
WALDROP EARL H; PETTY GEORGE M |
|
| 17 |
Feed-water preheating means |
US65771433 |
1933-02-20 |
US1930602A |
1933-10-17 |
WELLS HENRY C |
|
| 18 |
Feed water heater for locomotives |
US40522529 |
1929-11-06 |
US1900697A |
1933-03-07 |
DOLE MYRON W; MORTIMER SILVERMAN |
|
| 19 |
Locomotive exhaust piping and feed water heater |
US24372527 |
1927-12-30 |
US1889924A |
1932-12-06 |
KIESEL JR WILLIAM F |
|
| 20 |
Feeding device for the boilers of locomotives |
US34341629 |
1929-02-28 |
US1869473A |
1932-08-02 |
LOUIS FRIEDMANN; HANS DEUTSCH |
|
