Patent ID: 6334459
Filing Date: 2002-01-01
Classification: B60T,F16D,Y10T

Abstract:
A demountable brake bleeding tool adapted to the direct locking engagement with a brake bleeder valve, said brake bleeder valve having a elongated body, an externally threaded center portion, the distal end portion having an unthreaded reduced diameter terminating in a sealing configuration, the proximal end extends outside a wheel cylinder body and having a hexagonal portion as a wrenching area, in succession toward said proximal end a nipple area and a frustum configuration, a longitudinal bore extending from said proximal end therethrough to engage a transverse smaller bore in said unthreaded section;a. said demountable brake bleeding tool having an upstream end and a downstream end, where said upstream end portion is a metal tube, said metal tube having one of a first configuration and a second configuration, wherein in the first configuration the upstream end is formed to accept said wrenching area and having parallel slots placed rearward and adjacent to said formed upstream end, said parallel slots sized to slidingly accept a shuttle member, said shuttle member having a keyhole configuration therethrough, said keyhole configuration having an annular portion sized to pass over said frustum, the rectangular portion of said keyhole sized to fit over said nipple and behind said frustum thereby locking said demountable brake bleeding tool to said brake bleeder valve, a cylinder of suitable material having a precision sliding fit within said metal tube and having a cross section sporting a bore therethrough, said cylinder having a configuration at the distal end of said bore to sealingly engage said frustum, said cylinder being urged to a sealing position to said frustum by a predetermined bias, a discriminator pin having a first diameter sized to fit slidingly within said cylinder, said discriminator pin having a second diameter at the proximal end to retain said discriminator pin within said cylinder, said discriminator pin configured to engage the proximal end of said longitudinal bore of said bleeder valve being urged into place by an adjustable or fixed bias, b. said demountable brake bleeding tool having a tool body, said tool body consisting of any suitable material having a predetermined length, said tool body having an outer diameter sized and configured to provide a gripping area, a bore therethrough, the distal end sized to receive said metal tube, the proximal end having a first internal thread, a threaded bushing having an external thread and a second internal thread, said bushing when screwed into said first internal thread activates said cylinder bias, an adjusting screw configured to mate with said second internal thread and having sufficient length to provide an adjustment range, said adjusting screw having an axial bore therthrough and a knurled knob at the proximal end, said axial bore, the distal end portion having a diameter to receive the biasing agent of said discriminator pin, the proximal end having a smaller diameter, said adjusting screw the proximal end having a means to allow hydraulic fluid to pass through a pressure fitting, said pressure fitting being installed into the proximal end of said adjusting screw, said adjusting screw when shortened to a predetermined length will produced a fixed bias for said discriminator pin, c. said metal tube, in the event that the downstream end has a second configuration when said brake bleeder valve is confined within said wheel cylinder body, said metal tube having a second configuration whereby the downstream end is formed to accept said wrenching area of said brake bleeder valve thereby producing a six sided configuration, said six sided configuration having a j form pressed into each side, therefore said shuttle member is not used while all other attributes remain the same.