Floor-mountable retractable roller device
OwnerBrian W. Anderson, David A. Pushinventors
Life of this patent
Estimating the term…
Abstract
Environmentally employable in combination with a slidable-door type open-wall and for maintaining an angular-dog type slidable-door in tight opening-obstructed temperature-protective contact adjacently about the wall-opening of a said upright open-wall, a floor-mountable retractable roller device including a floor-mountable horizontal base-plate and including a pivotably mounted elongate rear-arm having a rotatable horizontal-roller springably urged toward the slidable-door underlying angular-dog to temperaturely-protectively urge the slidable-door in closure-condition about the wall-opening. The springably urged force between the slidable-door lower angular-dog and the device horizontal-roller can be empirically adjusted with an adjusting screw disclosed herein.
Claims4
In environmental combination with a floor adjacent an open wall having a slidable-door therein, wherein said slidable-door has a frontal-plane, said frontal-plane of said slidable-door extending upwardly above said floor and being provided with a forwardly extending angular dog whose longitudinal direction is transverse and adjacent said floor and including a mountable retractable roller device mounted upon said floor and including a horizontal-roller extending toward said angular dog to maintain said slidable-door against said open-wall, and comprising:
- (A) a base-plate having a horizontal lower-plane mounted on said floor and having a horizontal rear-side confronting said slidable-door frontal-plane, a horizontal front-side located forward of said base-plate rear-side, and extending parallel said base-plate rear-side;
- (B) a horizontally elongate rear-arm having a trail-end portion pivotably attached in overlying relationship to said base-plate at an upright pivotal rear-station wherein said rear-arm extends forward from said trail-end toward a rear-arm lead-end there at provided with a horizontal-roller confrontably impinging against a said slidable-door angular dog;
- (C) a spring-support means which extends from said base-plate;
- (D) a helical spring horizontally overlying the base-plate upper-plane and extending horizontally from said spring-support means to a rearward-leg of a horizontal front-arm that overlies said base-plate;
- (E) said horizontal front-arm extending horizontally along a front arm-axis thereof between a frontal-leg portion pivotably attached to said rear-arm and the rearward leg portion being slidable and adjustable where it is attached to said helical spring;
- and
- (F) extending upright from said base-plate upper-plane and transversely extending between said rear-arm and the base-plate rear-side, a stop-means abutting said rear-arm, whereby said horizontal helical spring through said pivotably associated front-arm tends to maintain said horizontal-roller transversely impingeable toward the angular dog portion of said slidable-door.
Dependencies are inferred from the claim text.