SCOTT THOMAS JEDNACZ
Pilots at 114 St, Bixby, OK

5498197, Mar 12, 1996

Nov 12, 1993

8/152644

Jerry W. Roberts - Oklahoma City OK
James E. Riley - Tulsa OK
Richard L. Goswick - Tulsa OK
Scott T. Jednacz - Bixby OK

Nelco Manufacturing Corp. - Oklahoma City OK

B24C 500

451 94

A hand-held blast cleaning machine having a motor which serves as a handle. The machine includes a blast assembly for propelling abrasive material against a surface and a hopper for supplying abrasive material to the blast assembly. The blast assembly has a blast corridor, a rebound corridor, a blast opening, a blast wheel and a motor. The motor drives the rotation of the blast wheel and serves as a handle. The hopper has a return corridor, a collection area, a feed area and a vacuum conduit. The vacuum conduit is connected to a vacuum source to collect dust and debris from the blast cleaning operation. In one embodiment, an side-blast hopper, a down-blast hopper, an up-blast hopper and a side-feed hopper are all interchangeably attachable to the same blast assembly. A shut-off handle is attached to the blast assembly to provide automatic shut-off abrasive material to the blast wheel and to function as a second handle. In another embodiment, the motor serves as the only handle.

4700909, Oct 20, 1987

Sep 6, 1983

6/529280

Marold H. Lohrenz - Tulsa OK
Joel O. Thies - Tulsa OK
Scott T. Jednacz - Bixby OK

Telex Computer Products, Inc. - Tulsa OK

G03B 104, G11B 1558

242182

A tape deck providing means to drive and control a file reel and a machine reel including a vacuum source and a capstan drive means, the tape deck including a first vacuum column of relatively wide width and short length extending upwardly and at an acute angle to the vertical plane encompassing the axis of the file reel and machine reel, and a second relatively wide, short length vacuum column below the first vacuum column and having an axis intersecting the axis of the first vacuum column at an acute angle, the second vacuum column having a transverse end wall at an angle to the second vacuum column outer wall, the sources of vacuum being applied to the vacuum columns, the capstan being positioned at the entrance to the second vacuum column so that a short length of tape extends from the capstan to the exit of the first vacuum column, the tape being wrapped 180. degree. around the capstan, with a read-write head positioned to engage the tape between the capstan and the exit from to the first vacuum column, the tape path geometry providing improved performance in handling of the tape within the confines of a relatively small area.