US3845877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inlet insert
Assignee: Ford Motor Co
•
Filing: 1972-04-06
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Granted: 1974-11-05
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Expires: 1992-04-06
Abstract
Abstract An insert to be positioned within the fuel tank filler or inlet pipe of an automotive vehicle to prevent filling the tank with improper fuels. The insert would permit entry of and delivery from a pump nozzle spout of a predetermined diameter or less, to be used with non-leaded fuels and would preclude entry of and delivery from a larger diameter pump nozzle spout, to be used with leaded fuels. The insert includes a pivotal member having an opening which must be aligned with a second, fixed opening to effect insertion of the nozzle.
Inventors
- 👤 L Arnett
- 👤 E Wiggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:00
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
214 words
A tank inlet pipe insert assembly to selectively accept and reject pump nozzle spouts on the basis of outer diameter magnitude, said insert assembly comprising: a first member secured to the inlet pipe and forming a partial closure thereof, said first member including a portion substantially perpendicular to the axis of said inlet pipe and having an opening formed therein a second member including a portion substantially parallel to said portion of said first member, means connecting said second member to said first member to pivot about an axis eccentric to the axis of said inlet pipe, a portion of said second member being positioned at least in part over said first opening, a second opening formed in said second member of a diameter of a magnitude to accept a nozzle spout of a first predetermined diameter and reject a nozzle spout of a second larger predetermined magnitude, spring meanS biasing said second member toward a normal position at least partially obstructing said first opening, said second member being displaceable from said normal position to a position in which said second opening is aligned with said first opening, said second member having dimensions less than the interior diameter of said inlet pipe to permit displacement of said second member relative to said inlet pipe.
Claim 2
Dependent Claim
214 words
A tank inlet pipe insert assembly to selectively accept and reject pump nozzle spouts on the basis of outer diameter magnitude, said insert assembly comprising: a first member secured to the inlet pipe and forming a partial closure thereof, said first member including a portion substantially perpendicular to the axis of said inlet pipe and having an opening formed therein a second member including a portion substantially parallel to said portion of said first member, means connecting said second member to said first member to pivot about an axis eccentric to the axis of said inlet pipe, a portion of said second member being positioned at least in part over said first opening, a second opening formed in said second member of a diameter of a magnitude to accept a nozzle spout of a first predetermined diameter and reject a nozzle spout of a second larger predetermined magnitude, spring meanS biasing said second member toward a normal position at least partially obstructing said first opening, said second member being displaceable from said normal position to a position in which said second opening is aligned with said first opening, said second member having dimensions less than the interior diameter of said inlet pipe to permit displacement of said second member relative to said inlet pipe.
Claim 3
Dependent Claim
43 words
A tank inlet insert assembly according to claim 1, vent means formed in said first member independent of said first opening to continuously vent the portion of the inlet pipe downstream of the insert assembly with the volume upstream of the insert assembly.
Claim 4
Dependent Claim
43 words
A tank inlet pipe insert assembly according to claim 1, pin means connecting said second member to said first member, the axis of said pin means being substantially parallel to and spaced from the axis of said inlet pipe adjacent said first member.
Claim 5
Dependent Claim
39 words
A tank inlet pipe insert assembly according to claim 1, said second member being pivotal relative to said first member about an axis substantially parallel to and spaced from the axis of said inlet pipe adjacent said first member.
Claim 6
Dependent Claim
78 words
A tank inlet pipe insert assembly according to claim 1, vent means formed in said first member independent of said first opening to continuously vent the portion of the inlet pipe downstream of the insert assembly with the volume upstream of the insert assembly and pin means connecting said second member to said first member, the axis of said pin means being substantially parallel to and spaced from the axis of said inlet pipe adjacent said first member.
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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) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |