Handheld low voltage machining tool

Details Handheld low voltage machining tool Handheld low voltage machining tool

1992-06-19

1994-10-18

Ro, Bentsu

Electricity: motive power systems

Portable-mounted motor and/or portable-mounted electrical...

318375, 388937, B23B 4502, H02P 312

Patent

active

053571797

ABSTRACT:
A handheld low voltage machining tool with which any one or more of drilling, milling, and abrading operations can be safely performed even on densely populated, multilayer, circuit boards. Provisions are made for preventing electrical overstress by isolating the tip of the machining tool from the drive motor as well as for preventing abrupt starting of the tool which can cause jerking, jumping or skipping of the tool off of the target. Still further, dynamic braking of the tool bit is achieved, both upon release of an operator actuated control switch and due to a selected conductive layer being reached. For the latter effect, a probe is provided by which a low voltage can be delivered to a component or conductor on the board, and circuitry detects grounding of this voltage by contact with the grounded bit of the machining tool.

REFERENCES:
patent: 3711997 (1973-01-01), Kushigian
patent: 3824891 (1974-07-01), Carroll
patent: 4292571 (1981-09-01), Cuneo
patent: 4487270 (1984-12-01), Huber
patent: 4491295 (1985-01-01), Thornton et al.
patent: 4650375 (1987-03-01), Millsap
patent: 4745557 (1988-05-01), Pekar et al.
patent: 4790065 (1988-12-01), Cooper, Jr. et al.

Affiliated with

Also associated with

Rating

Handheld low voltage machining tool does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Handheld low voltage machining tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Handheld low voltage machining tool will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2375073