US3635262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for bleeding hydraulic lines
Assignee: RAY M STEBBINS
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Filing: 1969-12-15
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Granted: 1972-01-18
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Expires: 1989-12-15
Abstract
Abstract A wrench for bleeding brake systems has a nipple extending from an end thereof to which a flexible tube and a receptacle are connected. Hydraulic fluid in the brake lines is collected through the nipple and the tube into the receptacle. The nipple can be permanently attached to the wrench and the flexible tube can be connected to the nipple so that the wrench, nipple, tube, and receptacle are used as a system and need not be disconnected in order to manipulate the wrench.
Inventors
- 👤 Ray M Stebbins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:18
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/18; B60T17/22; B60T17/221; B60T17/222
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
A wrench for hydraulic line bleed valves having noncircular outer configurations and being opened when turned for exhausting fluid under pressure from the lines, said wrench comprising a handle having two end portions affixed to said handle, each of said end portions having a noncircular opening of a size and shape to cooperate with the noncircular portion of said bleed valves, said end portions being of different sizes to be used with bleed valves of different sizes, one side of each of said end portions having a nipple extending therefrom to receive a flexible tube positioned over and around said nipple, said nipple being spaced from said handle and separate therefrom, said nipple having a passage communicating with the corresponding end opening.
Claim 2
Dependent Claim
122 words
A wrench for hydraulic line bleed valves having noncircular outer configurations and being opened when turned for exhausting fluid under pressure from the lines, said wrench comprising a handle having two end portions affixed to said handle, each of said end portions having a noncircular opening of a size and shape to cooperate with the noncircular portion of said bleed valves, said end portions being of different sizes to be used with bleed valves of different sizes, one side of each of said end portions having a nipple extending therefrom to receive a flexible tube positioned over and around said nipple, said nipple being spaced from said handle and separate therefrom, said nipple having a passage communicating with the corresponding end opening.
Claim 3
Dependent Claim
61 words
A wrench according to claim 1 characterized by a flexible tube having one end attached to one of said nipples by being positioned over and around said nipple, and a receptacle, the other end of said flexible tube communicating with said receptacle, whereby fluid exhausted from the valve will be directed through said nipple and said flexible tube to said receptacle.
Claim 4
Dependent Claim
46 words
A wrench according to claim 2 characterized by said flexible tube having an extension extending to a position close to the bottom of said receptacle whereby the end of the tube extension will be immersed in a small amount of brake fluid exhausted into the receptacle.
Claim 5
Dependent Claim
35 words
A wrench according to claim 1 characterized by said wrench being of the box end type with an offset handle, and with said nipples for the end portions of said wrench extending in opposite directions.
Claim 6
Dependent Claim
40 words
A wrench according to claim 1 characterized by each of said nipples having a flat annular surface of a size and shape to cooperate with and be affixed to the corresponding end portion of said wrench around said noncircular opening.
Claim 7
Dependent Claim
119 words
A wrench for hydraulic line bleed valves having noncircular outer configurations and being opened when turned for exhausting fluid under pressure from the corresponding lines, said wrench comprising a handle having two end portions at opposite ends of said handle, each of said end portions having a noncircular opening of a size and shape to cooperate with the noncircular portion of one of said bleed valves, said end portions being of different sizes to be used with bleed valves of different sizes, one side of each of said end portions having a nipple extending therefrom, each of said nipples having a passage communicating with the corresponding end opening, and a flexible tube removably connected to one of said nipples.
Claim 8
Dependent Claim
119 words
A wrench for hydraulic line bleed valves having noncircular outer configurations and being opened when turned for exhausting fluid under pressure from the corresponding lines, said wrench comprising a handle having two end portions at opposite ends of said handle, each of said end portions having a noncircular opening of a size and shape to cooperate with the noncircular portion of one of said bleed valves, said end portions being of different sizes to be used with bleed valves of different sizes, one side of each of said end portions having a nipple extending therefrom, each of said nipples having a passage communicating with the corresponding end opening, and a flexible tube removably connected to one of said nipples.
Claim 9
Dependent Claim
76 words
A wrench according to claim 6 further comprising each of said nipples having an annular surface of a size and shape to cooperate with and be affixed to a corresponding end portion of the wrench, each of said nipples further having a circular flange extending generally perpendicularly to said annular surface to cooperate with the corresponding end portion of the wrench and to aid in connecting the nipple to the corresponding end portion of the wrench.
Claim 10
Dependent Claim
40 words
A nipple according to claim 7 characterized further by said passage extending substantially perpendicular to said annular surface, said passage being of a sufficient size at the portion adjacent said annular surface to receive an end of a bleed valve.
References Cited (Backward Citations)
US3301282A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |