Gas separation – Combined or convertible – In motor vehicle
Reexamination Certificate
2000-09-19
2002-06-11
Chiesa, Richard L. (Department: 1724)
Gas separation
Combined or convertible
In motor vehicle
C055S498000, C055S502000, C055S503000, C055S504000, C220S004130, C220S293000, C220S297000, C220S300000
Reexamination Certificate
active
06402798
ABSTRACT:
BACKGROUND AND SUMMARY
The invention relates to filter housings, and more particularly to twist and lock filter housings, including plastic air cleaners.
Twist and lock filter housings are known in the prior art, including twist and lock plastic air cleaner housings. Such housings typically use nuts and bolts, overcenter latches, hinges, sliding lock components for anti-rotation, or a combination of these, to fasten the cover to the base.
The present invention provides a simple, cost effective system for locking the cover to the base in a twist and lock filter housing arrangement. In a desirable aspect, the invention enables a reduced number of components, and offers a cost advantage as well as simplicity over prior twist and lock systems using separate locking mechanisms.
In a further aspect, the invention provides in combination twist and lock structure providing an axial retention force and releasable anti-rotation lock structure providing a rotational retention force releasably holding the twist and lock structure in locked axially assembled condition. In one particularly desirable aspect, the invention enables both of such structures to be integral with their respective base or cover of a plastic air cleaner housing. This eliminates the expense of additional fasteners or components otherwise required to be attached to the base and/or cover.
In a further aspect, the invention provides anti-rotation lock structure having an arm stationarily mounted to the respective housing section and flexibly bendable about a bend line extending parallel to the housing axis.
REFERENCES:
patent: 4215790 (1980-08-01), Ribble et al.
patent: 4261718 (1981-04-01), Garner
patent: 4331247 (1982-05-01), Mumford
patent: 4333580 (1982-06-01), Sweigart, Jr.
patent: 4501376 (1985-02-01), Bushby
patent: 4719012 (1988-01-01), Groezinger et al.
patent: 4759783 (1988-07-01), Machado
patent: 5049170 (1991-09-01), Parnoff
patent: 5106397 (1992-04-01), Jaroszczyk et al.
patent: 5114572 (1992-05-01), Hunter et al.
patent: 5137557 (1992-08-01), Behrendt et al.
patent: 5547480 (1996-08-01), Coulonvaux et al.
patent: 5676273 (1997-10-01), Jonkers et al.
patent: 5730769 (1998-03-01), Dungs et al.
patent: 5755842 (1998-05-01), Patel et al.
patent: 5800581 (1998-09-01), Gielink et al.
patent: 5803939 (1998-09-01), Huning
patent: D407475 (1999-03-01), Coulonvaux et al.
patent: 5876600 (1999-03-01), Matsubara et al.
patent: D412567 (1999-08-01), Ward et al.
patent: 5948246 (1999-09-01), Zuk, Jr.
patent: 6039778 (2000-03-01), Coulonvaux
patent: 6051042 (2000-04-01), Coulonvaux
patent: 1093839 (2000-10-01), None
patent: 2712506 (1993-11-01), None
patent: 2138411 (1984-10-01), None
patent: 09173717 (1997-07-01), None
patent: WO 98/40147 (1998-09-01), None
Anderson-Brown Thomas M.
Holzmann Mark V.
Kallsen Kent J.
Morgan Jeffrey S.
Nordstrom Nels A.
Andrus Sceales Starke & Sawall LLP
Chiesa Richard L.
Nelson Industries Inc.
Pham Minh-Chau T.
LandOfFree
Twist and lock filter housing with nontorsional... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Twist and lock filter housing with nontorsional..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Twist and lock filter housing with nontorsional... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2967866