Fluid supply, filter pack used therein and method of assembly

Details Fluid supply, filter pack used therein and method of assembly Fluid supply, filter pack used therein and method of assembly

1975-01-08

1977-04-12

Peters, Jr., Joseph F.

Land vehicles

Wheeled

Attachment

23281, 55487, 102 39, B60R 2108

Patent

active

040171000

ABSTRACT:
A fluid supply is provided for inflating a vehicle occupant restraint system of the type activated in response to a vehicle collision signal. The fluid supply includes a housing defining a fluid discharge port, combustible gas generating means disposed within the housing and means operable to activate the gas generating means to produce gaseous combustion products. A filter pack is disposed between the gas generating means and a discharge port means and includes a plurality of layers of filter material, such as fiberglass or steel wool, with each of the layers being at least as porous as the next adjacent downstream layer to cause filtration of progressively finer particles as the gaseous combustion products move downstream. This progressive filtering minimizes clogging of the filter pack. During assembly, a layer of support screen is pressed into the housing adjacent the fluid discharge port, then the layers of filter material are pressed into the housing and a relatively thin perforated plate is positioned adjacent the layers of filter material. Preferably, the filter material is pressed into the housing with a force in the range of about 4-6 tons.

REFERENCES:
patent: 3733180 (1973-05-01), Heineck et al.
patent: 3797854 (1974-03-01), Poole
patent: 3827715 (1974-08-01), Lynch
patent: 3877882 (1975-04-01), Lette et al.
patent: 3880447 (1975-04-01), Thorn et al.
patent: 3898048 (1975-08-01), Barber
patent: 3904221 (1975-09-01), Shiki

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