Container for a refrigerant system filter

Details Container for a refrigerant system filter Container for a refrigerant system filter

1994-10-31

1997-12-16

Pollard, Steven M.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220293, F16L 5500

Patent

active

056976020

ABSTRACT:
A container (10) for a filter (12) has a cylindrical housing (16) receiving the filter (12) and permitting replacement of the filter (12) from an open end. An enlarged diameter fitting (22) is secured about the open end of the cylindrical housing (16) and has retaining lugs (30) for retaining a removable end cap assembly. The removable end cap assembly has an anchor plate (40) with projections (46) that are received within arcuate slots (32) of the end fitting (22). The anchor plate (40) is coupled to an end cap (42) for rotation to position the projections (46) beneath the lugs (30) to restrain outward movement of the anchor plate (40). A single bolt (44) through the end cap (42) is threaded to the anchor plate (40). Rotation of the bolt draws the anchor plate (40) tightly against the lugs (30). The end cap (42) is simultaneously forced against an O-ring (36) disposed on the outer end (50) of fitting (22) for sealing the end cap to the container. An embodiment of FIG. 5 has an adaptor (25A) removably connected to a flange (22A) on the cylindrical housing (16A) to provide a retrofit. An embodiment of FIGS. 6-9 provides visible external indicia on the cap assembly to indicate when the cap (42B) is in fully engaged position with the housing (16B).

REFERENCES:
patent: 1324981 (1919-12-01), Roesch
patent: 1700503 (1929-01-01), Lyon et al.
patent: 1907747 (1933-05-01), Daman
patent: 2578021 (1951-12-01), Sandberg
patent: 3006499 (1961-10-01), Corbett
patent: 3278071 (1966-10-01), Pangburn
patent: 5329971 (1994-07-01), Conon

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