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US3815404A Expired / Lapsed US ⏱️ 0.0 years remaining

Vehicle suspension checking apparatus

Assignee: Muller et Cie SA
•
Filing: 1972-10-20
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Granted: 1974-06-11
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Expires: 1992-10-20
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Abstract

Abstract Apparatus for checking the suspension systems of vehicles, which comprises a vibrating plate adapted to receive one wheel of the vehicle, as well as mechanical means adapted to impart to said plate vertical oscillations and detector means for controlling the wheel oscillations. Said vibrating plate is pivoted at one end about a horizontal hinged shaft and bears on the floor or a fixed base plate through at least one relatively stiff spring, means adapted to impart oscillations to said vibrating plate acting on said plate through the medium of one or a plurality of separate springs. The means for controlling said wheel oscillations consists of a device capable of detecting and measuring either the amplitude of the oscillatory movements of said plate or the value of its accelerations, or alternatively the variations in the force developing between said vibrating plate and one of the springs associated therewith, or between said vibrating plate and the tyre of the wheel being checked.

Inventors

  • 👤 G Brisard

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 06:39
CPC Classifications
G; G01; G01M; G01M17/00; G01M17/007; G01M17/04

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 91 words
An apparatus for checking the suspension systems of vehicles, comprising a base, a horizontal pivot shaft provided on said base, a vibrating platform pivoted at one end about said shaft, at least one first spring between the other end of said platform and said base, means adapted to impart to said platform vertical oscillations, at least one second spring between said means and said platform, whereby said spring transmits oscillations from said means to effect the oscillations of said platform, detector means adapted to measure the oscillations of said vibrating platform.
Claim 2
Independent Claim 91 words
An apparatus for checking the suspension systems of vehicles, comprising a base, a horizontal pivot shaft provided on said base, a vibrating platform pivoted at one end about said shaft, at least one first spring between the other end of said platform and said base, means adapted to impart to said platform vertical oscillations, at least one second spring between said means and said platform, whereby said spring transmits oscillations from said means to effect the oscillations of said platform, detector means adapted to measure the oscillations of said vibrating platform.
Claim 3
Dependent Claim 29 words
An apparatus according to claim 1 in which said detector means consist of a device capable of detecting and measuring the amplitude of the oscillatory movements of said platform.
Claim 4
Dependent Claim 37 words
An apparatus according to claim 1 in which said detector means consist of a device capable of detecting and measuring the variations in the force developing between said vibrating platform and one of the springs associated therewith.
Claim 5
Dependent Claim 38 words
An apparatus according to claim 1 in which said detector means consist of a device capable of detecting and measuring the variations in the force developing between said vibrating platform and the tyre of the wheel being checked.
Claim 6
Dependent Claim 60 words
An apparatus according to claim 1, in which the means adapted to impart oscillations to said vibrating platform comprise an eccentric mechanism rotatably driven from a suitable motor and having its shaft provided with an inertia flywheel, said eccentric being disposed under said vibrating platform, whereby the latter can bear thereagainst through the second spring acting as oscillation transmission member.

References Cited (Backward Citations)

US2934940A Cited
US3720091A Cited
US3690145A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-10 1977-12-10 1978-06-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-10 1981-12-10 1982-06-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-10 1985-12-10 1986-06-11 $7700.00 Window Closed / Lapsed

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