Movable or removable closures – Removable closure – Releasable means on closure
Reexamination Certificate
2000-01-06
2001-05-22
Redman, Jerry (Department: 3634)
Movable or removable closures
Removable closure
Releasable means on closure
C049S055000
Reexamination Certificate
active
06233874
ABSTRACT:
The invention is defined as a juvenile safety gate for portable installation between fixed extremes. It is characterized by its free-standing, swingable relationship to fixed passageway uprights, defining the passageway construction. Examples of its utility include positioning as a walk-through pressure gate, located inside hallways, doorways between rooms or opposed fence posts. The gate is universally extendible and retractable irrespective of even or uneven opposite extremes of the passageway, with latch control to delimit the extremes of pressure extension, relative to the lineal width of elements defining the passageway against which it presses.
SUMMARY OF INVENTION
The primary objective in the design of this gate is to eliminate the hazardous “trip bar” that is common to all other walk-through pressure gates. This is accomplished by creating a freestanding gate that supports itself in an upright position throughout an open and closing 180° arc. The gate frames, being lightweight aluminum, are stabilized by a steel platform on the hinge frame and a caster, which supports the latch frame during operation.
Pressure to secure the gate to the wall surfaces is applied by utilizing a scissors type over center latch system that exerts pressure to two vertical levers to which a pressure bar is attached allowing the pressure bar to pivot, thus compensating for any unevenness in the wall surface.
Gate width is maintained by two cup point set screws that engage the main gate frame when tightened. The width of the gate thus determines the amount of pressure applied to the pressure bar of the latch frame. A turnbuckle is incorporated in extension of a connector of the latch system that permits micro adjustment of the final pressure setting. Once the adjustments are made the gate can be removed from the passageway opening, set aside or stored, when not in use and further adjustment is not necessary when relocated.
In summary, a primary advantage of this gate over other pressure gates is the elimination of the hazardous trip bar. Secondary is the ease of relocating the gate without having to loosen any pressure pads. One simply releases the pressure by use of the latch, then moves the gate to any location desired, i.e., no trip bar, free standing.
REFERENCES:
patent: 2851746 (1958-09-01), McPhaden
patent: 5117585 (1992-06-01), Andrisin
patent: 5396732 (1995-03-01), Andersen
patent: 5809694 (1998-09-01), Postans
patent: 2234281 (1991-01-01), None
patent: 2235945 (1991-03-01), None
Redman Jerry
Semmes, Esq. J. Gibson
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