Danny R Jinkins

52056821, Apr 27, 1993

Apr 12, 1991

7/684295

Danny R. Jinkins - Hicksville OH

Cooper Industries, Inc. - Houston TX

B23B 4514

408 46

A hand-held automatic drilling machine includes an expandable locating collet or locating pin, a pair of adjustably mounted drill bits for simultaneously drilling a pair of spaced-apart openings in a workpiece and a rotary drive motor for the drill bits. The machine also includes a first drive assembly for activating the expandable collet and a second drive assembly for advancing the drill bits into the workpiece. An adjustable dashpot provides resistance to the second drive assembly, thereby controlling the force applied to the drill bits and thus the feed rate. A bi-stable control valve commences the drilling cycle in one state and sequentially activates the first drive assembly and the second drive assembly. A full depth sensor moves the control valve to the opposite state, sequentially deactivating the second drive assembly and the first drive assembly.

50730681, Dec 17, 1991

Oct 24, 1990

7/605141

Danny R. Jinkins - Hicksville OH
Douglas D. Doeden - Hicksville OH

Doler Inc. - Hicksville OH

B23B 4722
B23B 4734

408 17

A peck feed drilling machine incorporates a pneumatically operated vane motor and peck feed components. The vane motor drives a conventional drill bit through a speed reducing gear train. The peck feed assembly includes a plurality of multi-state shuttle valves which cooperate with a drilling feed piston, a peck piston and a clutch assembly to incrementally advance and fully retract the drill bit to peck drill an aperture. The drilling machine also includes a dashpot which adjusts the feed rate of the drill bit, a second dashpot for slowing the drill bit as it breaks through the workpiece and countersinks, a threaded mechanism for adjusting the depth of drilling and a spring mechanism for slowing the advance of the drill bit just before it engages the workpiece.

D2949890, Mar 29, 1988

Jan 17, 1985

6/692174

Danny R. Jinkins - Bryan OH

D32 45

46868933, Aug 18, 1987

Jun 23, 1986

6/877388

Danny R. Jinkins - Bryan OH

F23L 700

98119

A novel and improved cover assembly for an air moving device such as a fan or air conditioner mounted in a wall or ceiling for drawing air therethrough. To prevent cold air from leaking through the device, the improved cover assembly is detachably connected by magnetic means to the rim of the device. The cover assembly is made of insulating material and has a plurality of recesses or channels formed on the internal side thereof extending in spaced relation to each other from the outer edge of each of the inner recesses so that a wide range of rims can be served by one size cover assembly. Depending on the rim size or shape (rectangular, square or circular) the cover assembly can be "fitted" to any rim in question by removing the excess material at the appropriate line of perforations.