Filler plug

Details Filler plug Filler plug

1976-03-01

1977-10-11

Lowrance, George E.

Receptacles

Closures

Closure penetrated through intersecting slits

137849, 220268, 220284, 220307, 220DIG19, B65D 4902, F16K 2104

Patent

active

040530841

ABSTRACT:
A closure plug is disclosed which is especially adapted for use in retaining insulation inside the cavities of refrigerators and like appliances. The plug includes a number of petal-like flaps which are conically arrayed and originally point relatively outwardly. When an insulation nozzle is pushed against the petal flaps, the flaps are forced inwardly, and splay apart to permit nozzle insertion through the plug. After the nozzle is withdrawn, the petal flaps return to form an inverted cone pointing relatively inwardly. Beveled petal flap sides provide planar inter-petal contact and structural conical strength to resist the outward flow of insulation. The plug is fastened to a cavity-defining wall by a base having a polygonal cross-sectional shape substantially coextensive with a polygonal wall aperture, and a head of polygonal cross-sectional shape at least congruent with the wall aperture but angularly offset with respect to and depending from the base to engage the wall and retain the plug on the wall.

REFERENCES:
patent: 2586858 (1952-02-01), Parsons
patent: 2822819 (1958-02-01), Geeraert
patent: 3168961 (1965-02-01), Yates
patent: 3245428 (1966-04-01), Klimak et al.
patent: 3262599 (1966-07-01), Muller
patent: 3370659 (1968-02-01), Gatien
patent: 3622034 (1971-11-01), Lutzker et al.
patent: 3739936 (1973-06-01), Jones, Jr.

Affiliated with

Also associated with

Rating

Filler plug does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filler plug, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filler plug will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-735554