§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US4050471A Expired / Lapsed US ⏱️ 0.0 years remaining

Closing apparatus for ventilation lines of fuel tanks in motor vehicles

Assignee: Dr Ing HCF Porsche AG
•
Filing: 1976-01-21
•
Granted: 1977-09-27
•
Expires: 1996-01-21
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A valving mechanism or closing apparatus for ventilation lines of fuel tanks in motor vehicles is provided which comprises a housing and closing elements contained in the housing, which closing elements are movable in accordance with the vehicle position. The closing elements are formed as movable members, one above the other, with the lower member being a mass body lying against a guide wall of the housing and being freely movable to a certain extent, while the upper element acts to close an exit opening of the housing, thereby closing the ventilation line. The lower mass body element may be conically configured to match the conically configured guide wall of the housing, or the mass body may be a ball shaped body which moves along the guide wall of the housing. The upper element may also be a floating body such that an overflow of gasoline into the housing causes the floating body to close the exit opening, thereby preventing discharge of fuel out of the ventilation line.

Inventors

  • 👤 Sigmund Anhegger
  • 👤 Hans Colell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 21:36
CPC Classifications
F; F02; F02M; F02M37/00; F02M37/0011; F02M37/0023; B; B60; B60K; B60K15/00; B60K15/03; B60K15/035; B60K15/03519; F02M37/0076; F02M37/20; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0777; Y10T137/0874

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 130 words
In a closing apparatus for ventilating lines of fuel tanks in vehicles, said closing apparatus comprising a housing in a ventilating line and movable closing means within said housing for closing said ventilating line in accordance with the position of a vehicle, the improvement comprising said closing means including a first ball-shaped movable member and a second movable member, said first member being disposed in a depression of a horizontal top surface of said second member above said second member, said second member being a conically configured mass body resting matingly on a conically configured guide wall of said housing, said mass body being guided in slidable movement along said guide wall, and said first member being movable to close said ventilating line at an exit opening of said housing.
Claim 2
Dependent Claim 130 words
In a closing apparatus for ventilating lines of fuel tanks in vehicles, said closing apparatus comprising a housing in a ventilating line and movable closing means within said housing for closing said ventilating line in accordance with the position of a vehicle, the improvement comprising said closing means including a first ball-shaped movable member and a second movable member, said first member being disposed in a depression of a horizontal top surface of said second member above said second member, said second member being a conically configured mass body resting matingly on a conically configured guide wall of said housing, said mass body being guided in slidable movement along said guide wall, and said first member being movable to close said ventilating line at an exit opening of said housing.
Claim 3
Dependent Claim 14 words
A closing apparatus according to claim 1, wherein said first member is a float-body.
Claim 4
Dependent Claim 19 words
A closing apparatus according to claim 1, wherein said first member protrudes into a chamfer of said exit opening.
Claim 5
Dependent Claim 34 words
A closing apparatus according to claim 1, wherein said housing includes two plates secured together one above the other, and wherein said guide wall is provided at the lower plate of said two plates.
Claim 6
Dependent Claim 26 words
A closing apparatus according to claim 1, wherein a channel means is disposed in a conical wall of said mass body for accommodating passage of fluid.

References Cited (Backward Citations)

US1683338A Cited
US2074329A Cited
US2919707A Cited
US3011503A Cited
US3768498A Cited
US3765435A Cited
US3916928A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-09-26 1981-03-28 1981-09-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-09-26 1985-03-28 1985-09-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-09-26 1989-03-28 1989-09-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag