Patent US4474159A successfully refreshed from Google Patents.
US4474159A
Expired / Lapsed
US
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Line for fluids
Assignee: Robert Bosch GmbH
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Filing: 1982-09-28
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Granted: 1984-10-02
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Expires: 2002-09-28
Abstract
Abstract An improved fluid-carrying line, such as a fuel line for distributing a liquid to several connections. The fuel line is formed by extrusion with a passage therethrough and, extending parallel to it, a bulged portion, preferably of rectangular cross-section, in which are provided two oppositely-disposed grooves. The grooves are formed so as to cooperate with spring clamps to retain fuel injection nozzles in bores disposed in the bulged portion of the fuel line.
Inventors
- 👤 John M. Katnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:58
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/005; F02; F02D; F02D41/00; F02D41/30; F02D41/3005; F02M; F02M69/00; F02M69/46; F02M69/462; F02M69/465; F16L41/02; F16L41/03; F16L41/08; F02D2400/00; F02D2400/21
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
92 words
In an improved linear fuel line provided with a passage along its entire length, the improvement comprising an integral, off-standing bulged portion extending along the entire length of said passage in said line and parallel to the passage, said bulged portion is provided with at least two oppositely-disposed grooves extending parallel to the passage, and has a rectangular cross section with a flat bottom surface, and said passage is provided in a portion of said fuel line having a semi-circular cross section which adjoins said bulged portion to form a cylindrical passage.
Claim 2
Dependent Claim
92 words
In an improved linear fuel line provided with a passage along its entire length, the improvement comprising an integral, off-standing bulged portion extending along the entire length of said passage in said line and parallel to the passage, said bulged portion is provided with at least two oppositely-disposed grooves extending parallel to the passage, and has a rectangular cross section with a flat bottom surface, and said passage is provided in a portion of said fuel line having a semi-circular cross section which adjoins said bulged portion to form a cylindrical passage.
Claim 3
Dependent Claim
188 words
In an improved linear fuel line provided with a passage along its entire length, the improvement comprising an integral, off-standing bulged portion extending along the entire length of said passage in said line and parallel to the passage, said bulged portion is provided with at least two oppositely-disposed grooves extending parallel to the passage, and has a rectangular cross section with a flat bottom surface, said bulged portion is selectively provided with receiving bores perpendicular to the bottom surface and in communication with the passage, each of said receiving bores being so constructed to receive a pipe connector of a fuel injection valve therein, whereby said fuel line serves as a fuel distributing line for a fuel injection system, and each of said injection valves are sealed in the receiving bore of the fuel distribution line via a gasket and retained in position by means of a spring clamp, such said spring clamp having flanges on one extremity adapted to be seated in the oppositely disposed grooves on said bulged portion and further having means on an opposite extremity to engage the pipe connector of one injection valve.
Claim 4
Dependent Claim
188 words
In an improved linear fuel line provided with a passage along its entire length, the improvement comprising an integral, off-standing bulged portion extending along the entire length of said passage in said line and parallel to the passage, said bulged portion is provided with at least two oppositely-disposed grooves extending parallel to the passage, and has a rectangular cross section with a flat bottom surface, said bulged portion is selectively provided with receiving bores perpendicular to the bottom surface and in communication with the passage, each of said receiving bores being so constructed to receive a pipe connector of a fuel injection valve therein, whereby said fuel line serves as a fuel distributing line for a fuel injection system, and each of said injection valves are sealed in the receiving bore of the fuel distribution line via a gasket and retained in position by means of a spring clamp, such said spring clamp having flanges on one extremity adapted to be seated in the oppositely disposed grooves on said bulged portion and further having means on an opposite extremity to engage the pipe connector of one injection valve.
Claim 5
Dependent Claim
19 words
In an improved linear fuel line in accordance with claim 1, wherein said fuel line is formed of aluminum.
Claim 6
Dependent Claim
19 words
In an improved linear fuel line in accordance with claim 1, wherein said fuel line is formed of plastic.
Claim 7
Dependent Claim
66 words
In an improved linear fuel line in accordance with claim 1, wherein said bulged portion is selectively provided with receiving bores perpendicular to the bottom surface and in communication with the passage, each of said receiving bores being so constructed to receive a pipe connector of a fuel injection valve therein, whereby said fuel line serves as a fuel distributing line for a fuel injection system.
Claim 8
Dependent Claim
52 words
In an improved linear fuel line in accordance with claim 2, wherein said bulged portion is provided with at least one support bore extending transversely to said passage, which bore is arranged to receive bolt means associated with brackets connected to an internal combustion engine on which said fuel line is used.
Claim 9
Independent Claim
44 words
A method of forming an improved fuel line which comprises extruding a linear piece of material including a semicircular portion and a rectangular cross section portion with said semicircular portion forming a cylindrical passage along the length of said extruded linear piece of material.
Claim 10
Independent Claim
44 words
A method of forming an improved fuel line which comprises extruding a linear piece of material including a semicircular portion and a rectangular cross section portion with said semicircular portion forming a cylindrical passage along the length of said extruded linear piece of material.
References Cited (Backward Citations)
US3929109A
Cited
US4327690A
Cited
GB2024937A
Cited
DE2833659A1
Cited
US4294215A
Cited
US4307693A
Cited
DE3014066A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-02 | 1988-04-02 | 1988-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-02 | 1992-04-02 | 1992-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-02 | 1996-04-02 | 1996-10-02 | $7700.00 | Window Closed / Lapsed |