US4772051A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular manifold brake hose end fitting
Assignee: MICHIGAN BRAKE Manufacturing Inc
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Filing: 1986-05-23
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Granted: 1988-09-20
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Expires: 2006-05-23
Abstract
Abstract A high pressure manifold brake hose end fitting used in a brake system to reduce the number of wet fittings required in the brake system. The manifold brake hose end fitting has a crimped sleeve connection to a reinforced rubber brake hose on one end, a first receptacle for a hydraulic fitting on the opposite end and a second receptacle formed in the side of the fitting between the one end and the opposite end. A conduit is provided for hydraulic fluid flow through the fitting and in one embodiment, the conduit is preferably eccentrically located away from the side of the fitting including said second receptacle. An end fitting providing three or more receptacles in a single fitting that may be part of one or more fluid systems is disclosed. A brake system and a method of installing brake fluid conduits are also disclosed which use the end fitting to reduce the number of wet fittings in a brake system and reduce the number of steps required to install a brake fluid conduit on a vehicle.
Inventors
- 👤 Robert W. Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:50
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/02; B; B60; B60T; B60T17/00; B60T17/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
418 words
A brake hose assembly for high pressure vehicle brake systems comprising: a solid one piece elongated polygonal body portion having a first end, a second end and a plurality of exterior lateral sides with an internal conduit formed within the body portion between the first end and the second end, each of said lateral sides forming a wrench flat on the exterior of said body portion, and said body portion having an integral tubular cylindrical sleeve extending from said first end of the body portion; a tubular extension located concentrically within said sleeve and defining a fluid conduit port formed in said extension in fluid communication with said internal conduit formed in said body portion; a reinforced elastomeric hose being received between said sleeve and said tubular extension, and said reinforced elastomeric hose being retained within said sleeve by a crimped portion of said sleeve wherein said sleeve is mechanically deformed radially inwardly at an intermediate portion thereon; a first female connector formed in said body portion on said second end, said female connector being a cylindrical bore having internal threads formed on the cylindrical sides thereof and having an end face at the inner end of the cylindrical bore, said end face having a convex conical nipple centrally located in the inner end and extending into the cylindrical bore and disposed about and in fluid communication with said internal conduit; at least one female connector formed in one of said lateral sides of said body portion, said second female connector being substantially confined to the lateral side and being a cylindrical bore having internal threads formed on the cylindrical sides thereof and having an end face at the inner end of the cylindrical bore, said end face having a convex conical nipple centrally located in the inner end and extending into the cylindrical bore and disposed about and in fluid communication with said internal conduit between said first and second ends of said body; at least one annular groove formed on an exterior surface of said body portion in said first end so that anchoring devices may secure the body portion to the frame of a motor vehicle; wherein a male connector including a rigid chassis braking tube line may be received within one of the female connectors to form a seal when connected together, whereby the reinforced elastomeric hose may be connected to a caliper of a brake of one wheel and connected at the body portion with a plurality of rigid chassis braking tube lines.
Claim 2
Dependent Claim
418 words
A brake hose assembly for high pressure vehicle brake systems comprising: a solid one piece elongated polygonal body portion having a first end, a second end and a plurality of exterior lateral sides with an internal conduit formed within the body portion between the first end and the second end, each of said lateral sides forming a wrench flat on the exterior of said body portion, and said body portion having an integral tubular cylindrical sleeve extending from said first end of the body portion; a tubular extension located concentrically within said sleeve and defining a fluid conduit port formed in said extension in fluid communication with said internal conduit formed in said body portion; a reinforced elastomeric hose being received between said sleeve and said tubular extension, and said reinforced elastomeric hose being retained within said sleeve by a crimped portion of said sleeve wherein said sleeve is mechanically deformed radially inwardly at an intermediate portion thereon; a first female connector formed in said body portion on said second end, said female connector being a cylindrical bore having internal threads formed on the cylindrical sides thereof and having an end face at the inner end of the cylindrical bore, said end face having a convex conical nipple centrally located in the inner end and extending into the cylindrical bore and disposed about and in fluid communication with said internal conduit; at least one female connector formed in one of said lateral sides of said body portion, said second female connector being substantially confined to the lateral side and being a cylindrical bore having internal threads formed on the cylindrical sides thereof and having an end face at the inner end of the cylindrical bore, said end face having a convex conical nipple centrally located in the inner end and extending into the cylindrical bore and disposed about and in fluid communication with said internal conduit between said first and second ends of said body; at least one annular groove formed on an exterior surface of said body portion in said first end so that anchoring devices may secure the body portion to the frame of a motor vehicle; wherein a male connector including a rigid chassis braking tube line may be received within one of the female connectors to form a seal when connected together, whereby the reinforced elastomeric hose may be connected to a caliper of a brake of one wheel and connected at the body portion with a plurality of rigid chassis braking tube lines.
Claim 3
Dependent Claim
21 words
The brake hose assembly of claim 1 wherein said second female connector being substantially confined to one of said wrench flats.
Claim 4
Dependent Claim
46 words
The brake hose assembly of claim 1 wherein said end face of said first and second female connectors include a base face extending from said conical nipple to the cylindrical sides of the cylindrical opening, said base face being sealed from fluid communication with said conduit.
Claim 5
Dependent Claim
91 words
The brake hose assembly of claim 1 further comprising third and fourth female connectors formed in the body portion, said third and fourth female connectors being cylindrical bores having internally threaded cylindrical sides and end faces formed at the inner ends of said cylindrical bores, said end faces having convex conical nipples centrally located in said end faces, said third and fourth female connectors being in fluid communication with a second internal conduit which is not in fluid communication with the internal conduit opening into said first and second female connectors.
Claim 6
Dependent Claim
95 words
The brake hose assembly of claim 1 further comprising a plurality of female connectors formed in the flat sides of said body portion and being cylindrical bores having internally threaded cylindrical sides and end faces formed at the inner ends of said cylindrical bores, said end faces having convex conical nipples centrally located in said end faces, each of said female connectors being in fluid communication with ports of a second conduit internally formed in said body portion for permitting more than one fluid circuit to be routed through the body portion simultaneously and independently.
Claim 7
Dependent Claim
24 words
The brake hose assembly of claim 1 wherein said first end and said second end of said body portion are opposed to one another.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-20 | 1992-03-21 | 1992-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-20 | 1996-03-21 | 1996-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-20 | 2000-03-21 | 2000-09-20 | $7700.00 | Window Closed / Lapsed |