Browse Prior Art Database

Compound Hydraulic Line

IP.com Disclosure Number: IPCOM000078274D
Original Publication Date: 1972-Dec-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Stroms, KF: AUTHOR

Abstract

In Fig. 1, one or several pressure lines 4 are contained in a larger safety line 5 with the space between lines used as a return line. Line 5 prevents a rupture of line 4 from producing spilling. In Fig. 2, an ink jet printer includes ink tank 6, pump 7, line 4, line 5 open to tank 6, and nozzle 8 for producing ink jet 9.

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Compound Hydraulic Line

In Fig. 1, one or several pressure lines 4 are contained in a larger safety line 5 with the space between lines used as a return line. Line 5 prevents a rupture of line 4 from producing spilling. In Fig. 2, an ink jet printer includes ink tank 6, pump 7, line 4, line 5 open to tank 6, and nozzle 8 for producing ink jet 9.

In Fig. 3 the ink jet printer of Fig. 2 includes a recirculating ink system, with an ink drop catcher 10 held by return line 11 connected to line 5. A charge electrode 12 and deflection plates 13 control ink jet deflection along paths 16 or 17 in a conventional manner. Baffle 15 protects air intake 14 from droplets of ink falling or splashing near line 5. Air exchanges at line 18.

Ink jet printers operating with ink pressures between 50 to 200 psi could have catastrophic ruptures, ejecting ink in all directions.

This system eliminates such possibilities so long as line 5 is in place. This is applicable to any system employing hydraulic pressure where leakage is not permissible, such as an office environment.

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