Movable or removable closures – Threshold – Adjustable
Patent
1976-10-04
1978-02-21
Kannan, Philip C.
Movable or removable closures
Threshold
Adjustable
49469, E06B 170
Patent
active
040744647
ABSTRACT:
This invention relates to an improvement for adjustable thresholds. The invention includes a threshold base having a channel extending through the length of the base. Sitting in the channel of the base is an elongated bar having an inverted U-shape cross-section. Throughout the length of the bar are several holes extending through the base of the U-shaped section. Several of these holes are threaded and a bolt is screwed into the threaded hole with the head of the bolt sitting on the bottom of the channel in the base. Screwing the bolt into and out of the threaded hole in the bar will raise and lower the bar, and once the height of the bar has been adjusted, it is fixed in the base of the threshold by a screw extending through holes in the bottom of the inverted U-shaped bar and screwed into threaded holes in the bottom of the channel of the base. Longitudinally extending grooves are formed in the base of the inverted U-shaped bar and an elongated rubber cover fits over the threshold with elongated protrusions fitting into the slots of the bar. The end flanges of the elongated cover are biased downward to fit snugly against the sloped edges of the base of the threshold to cause the elongated cover to snugly fit over the threshold and to keep the entire unit clean and prevent persons from tripping over the threshold.
REFERENCES:
patent: 2849763 (1958-09-01), Leigh
patent: 2947043 (1960-08-01), Klemma
patent: 3114180 (1963-12-01), Riedl
patent: 3374579 (1968-03-01), Neff
patent: 3762100 (1973-10-01), Kempel
Kannan Philip C.
Waddey, Jr. I. C.
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