Mardy Polaner

39540928, May 4, 1976

Apr 28, 1975

5/572283

Mardy Polaner - Birmingham MI

Barbron Corporation - Detroit MI

F02M 1700
F02M 2506
F02M 2900

123142

A feed line for conveying gasoline from the air side of an engine diaphragm fuel pump to the intake manifold consists of a tube having an interior strip with a width equal to that of the inside diameter of the tube wound into a spiral along its length and fixed within the tube. The feed tube allows the return of fuel reaching the air side of the diaphragm of the fuel pump to the engine in the event of rupture of the diaphragm, without the danger of backfire. The introduction of the unatomized fuel into the intake manifold directly or through the wall of the carburetor causes a disruption in smooth engine operation to signal the operator of a disorder.

42682894, May 19, 1981

Jan 28, 1980

6/115828

Mardy Polaner - Birmingham MI

Barbron Corporation - Detroit MI

B01D 5000
B01D 4624
B01D 4652

55486

A flame arresting filter element for air intake systems has an outer ring of pleated filtering paper and an inner, concentric ring formed of expanded metal foil, longitudinally stretched and laterally compressed so as to be adapted to diffuse and quench frames resulting from engine backfire. The inner ring is coated with a relatively inert, cohesive substance to provide a unitary structure. The two rings are provided with resilient end caps.