公开(公告)号：US10682997B2

公开(公告)日：2020-06-16

申请号：US16072688

申请日：2017-01-25

Applicant: LIBERTY VEHICLE TECHNOLOGIES LIMITED

Inventor： Anthony Blackwell ,  Daniel Mutch-Mathieson ,  Anthony Philips ,  Laurie Rippin ,  Benjamin Shepherd ,  Philip Thomas ,  Steven Young

IPC: B60T11/30

Abstract: A bleeding device (1, 100) for bleeding air from a hydraulic system, which includes a bleed screw (2, 102) and a bleeding needle (3, 103) for unseating the bleed screw (2, 102) to enable any air trapped within the system to be bled. The bleed screw (2, 102) is receivable within a threaded bleed port (41) in a component of the system, such as a brake caliper (4). The bleed screw (2, 102) includes a socket (28, 128), a conical sealing face (27) and a radial fluid passage (24) between the sealing face (27) and the socket (28, 128). The bleed needle (3, 103) includes a plug (34, 134) for releasable engaging receipt within the socket (28, 128) of the valve member and a fluid passageway (31) which is in fluid communication with the radial fluid passage (24) of the bleed screw (2) when the plug (34, 134) is received within the socket (28, 128). The bleed screw (2, 102) is movable, in use, between a sealed position in which the sealing face (27) seats against the sealing face (43) of a bleed port (41) and a bleeding position in which the sealing face (27) is unseated to open fluid communication between the bleed port (41) and the fluid passageways (24, 31).

公开(公告)号：US10544843B2

公开(公告)日：2020-01-28

申请号：US15754038

申请日：2016-08-19

Applicant: LIBERTY VEHICLE TECHNOLOGIES LIMITED

Inventor： Philip Thomas ,  Anthony Blackwell ,  Daniel Mutch-Mathieson ,  Anthony Philips ,  Laurie Rippin ,  Benjamin Shepherd

IPC: F16D65/14 ,  F16D55/228 ,  F16D65/095 ,  F16D65/18 ,  F16D55/00 ,  F16D121/04 ,  F16D121/24 ,  F16D125/36 ,  F16D125/40 ,  F16D125/64 ,  F16D125/60

Abstract: A brake caliper (100) with first and second parts (104a, 104b) between which is received a pair of braking members (102a, 102b). The caliper (100) includes a service brake mechanism having at least two piston and cylinder assemblies (108a, 110a and 108b, 110b) forming an opposed piston mechanism for forcing each of the braking members (102a, 102b) towards a brake disc to apply a service braking force thereto. The caliper (100) also includes a park brake mechanism including an actuator mechanism (112) for applying a driving force to a first opposed braking member (102a) towards the brake disc and a force transmitting member (116) for transmitting the driving force to a second opposed braking member (102b). The force transmitting member (116) is supported by a sliding connection between the force transmitting member (116) and an outer surface of a first cylinder (110a) and a slidable connection between the force transmitting member (116) and a connecting member that spans the first and second parts of the brake caliper (100).