Removable glide rings for pneumatic tube carriers

Details Removable glide rings for pneumatic tube carriers Removable glide rings for pneumatic tube carriers

1996-04-15

1999-05-11

Knight, Anthony

Seal for a joint or juncture

Seal between relatively movable parts

Circumferential contact seal for other than piston

406190, F16J15/16

Patent

active

059019662

ABSTRACT:
The present invention relates to glide rings for use with a carrier for transporting articles through pneumatic tube systems, and more particularly, glide rings comprising Velcro.RTM. secured plastic or rubber strips to allow efficient replacement of said glide rings. The glide rings have an outer cross-sectional dimension which allow them to engage the inner surface of the passageway of the pneumatic tube system. This provides stability to the carrier and allows the carrier to be moved in response to the controlled air pressure within the passageway. Each of the glide rings has a small width in relationship to the overall length of the closed elongated compartment, and each is located in proximity to the ends of the carrier.

REFERENCES:
patent: 3401902 (1968-09-01), Gouyou-Beauchamps et al.
patent: 3593948 (1971-07-01), McClellan
patent: 3825210 (1974-07-01), Weaver
patent: 4149685 (1979-04-01), Leavelle
patent: 4324511 (1982-04-01), Irish
patent: 5368417 (1994-11-01), Benjamin et al.
patent: 5538366 (1996-07-01), Piland et al.
patent: 5586371 (1996-12-01), Thomas

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