Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Bushing – Providing a restricted or insulated environment for internal...
Patent
1998-09-30
2000-07-18
Mah, Chuck Y.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Bushing
Providing a restricted or insulated environment for internal...
174153G, F16L 502, H01B 1726
Patent
active
060888768
ABSTRACT:
A grommet for sealing the interface between two vertically stacked building entrance protector and for protecting wires and/or cables traversing through openings of one building entrance protector to another. The grommet comprises a tubular body defining an axial passageway therebetween wherein cables and/or wires traverse. The tubular body has a diameter the same or smaller than the openings on the sidewall of the upper building entrance protector such that the tubular body fits within the opening. At one end of tubular body is an integral annular base having a diameter larger than the opening on the sidewall of the lower building entrance protector. Radially extending from the mid section of the tubular body towards annular base is an integral flange having a diameter larger than the annular base and having at least one circular ridge. The opening of the lower building entrance protector fits between the circular ridge and the annular base, where the distance between the ridge and the annular base is narrower than the thickness of the sidewall of the lower building entrance protector which causes the ridge to deflect and resilient engage and exert pressure against the sidewall to seal the opening of the lower building entrance protector.
REFERENCES:
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patent: 3288407 (1966-11-01), Downer et al.
patent: 4945193 (1990-07-01), Oikawa et al.
patent: 5701634 (1997-12-01), Uemura et al.
patent: 5732440 (1998-03-01), Wright
patent: 5739475 (1998-04-01), Fujisawa et al.
Lucent Technologies - Inc.
Mah Chuck Y.
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