[21] Appl. No.: 111,453
[22] Filed: Jan. 11, 1980
- [51] Int. Cl.3
C10L 7/00
- [52] U.S. Cl.
44/7 A; 44/7 R;
44/7 D; 102/90; 102/363
- [58] Field of Search
102/90; 44/7 R, 7 E, 44/7 D, 7 A
[56] References Cited
U.S. PATENT DOCUMENTS
- 3,539,311 11/1970 Cohen et al.
44/7 A
- 3,634,157 1/1972 Batson
44/7 E
- 3,685,453 8/1972 Hawrick
102/90
- 3,730,093 5/1973 Cummings
102/90
- 3,795,556 3/1974 Sippel et al.
44/7 E
- 3,955,509 3/1976 Carlsen
102/90
- 3,994,696 11/1976 Adicoff
44/7 A
- 4,157,928 6/1979 Falterman et al.
102/90
Primary Examiner—Edward A. Miller
Attorney, Agent, or Firm—R. S. Sciascia; W. Thom Skeer; Lloyd E. K. Pohl