John Fredrick Eichenlaub

40532798, Oct 11, 1977

Feb 23, 1976

5/660134

John E. Eichenlaub - Edina MN

F27B 1700
F24C 302

432222

A radiant heater is provided with a fuel-fired radiant housed in a combustion chamber having a wall with a radiation-transmissive panel. A plenum adjacent the combustion chamber is provided with air under pressure greater than that in the combustion chamber. Air from the plenum is employed as primary combustion air for the fuel-fired radiant, and air from the plenum also is caused to flow cocurrently into the combustion chamber and to provide adjacent the inner surface of the radiation-transmissive panel a constantly replenished pool or cushion of cool air cooling the panel and providing a buffer layer to prevent impingement of hot combustion product gases thereon. The orientation of the heater within a space to be heated may be varied within limits without adversely affecting its operation, and the heater may be made of small size.

44112653, Oct 25, 1983

Jun 19, 1981

6/275209

John E. Eichenlaub - Golden Valley MN

A61F 712

1283031

An ear wax removing device comprised of a hollow curette connected to a source of circulating warm fluid and movably mounted in forwardly and gently biased relation for longitudinal movement upon a mounting plate which is designed to rest against the side of the patient's head and carries an adjustable abutment which limits the depth of insertion of the curette into the patient's ear.