Window cleaning device
AssigneeMallory Hardware Products Limited
InventorGeorge Raeburn Mallory
Life of this patent
Estimating the term…
Abstract
A window cleaning device consisting of a sponge, a head for supporting the sponge and a stiffener web for stiffening the sponge and securing the sponge with respect to the head. The stiffener has a pair of ridges which are located within a channel formed in the head in a face-to-face relationship with respect to flanges at the outer edge of the channel formed in the head so as to compress the sponge between the ridges and the flanges of the head to firmly secure the sponge within the head.
Claims2
In a window cleaning device of the type consisting of a handle, a head mounted on the handle, the head having a longitudinally elongated channel formed therein, the channel having an inner wall and oppositely disposed side walls, a flange on each of its oppositely disposed side walls projecting inwardly therefrom to form a narrow passage therebetween, a longitudinally elongated sponge having a longitudinally extending mounting portion and a longitudinally extending wiping portion, the mounting portion being mounted within said channel to secure the sponge with respect to the head, the sponge having a slit formed in the mounting portion and extending into the wiping portion thereof to receive a stiffener, the improvement of a stiffener member formed from an elongated body of stiff material comprising
- a. a pair of shoulders extending longitudinally of the body and projecting outwardly from the opposite sides of the body to divide the body into a spacer web on one side of the shoulders and a stiffener web on the other side thereof,
- b. the shoulders having a combined width which is greater than the width of said narrow passage,
- c. said stiffener member being located within said slit of said sponge with said shoulder portions thereof disposed within said channel in a face-to-face relationship with said flanges,
- d. said spacer web projecting from said shoulders into engagement with the inner wall of said channel to prevent movement of the shoulders inwardly with respect to the channel such that the sponge is tightly clamped between the shoulders and the flanges, said stiffener web projecting outwardly from said channel to stiffen the wiping portions of the sponge, the stiffener being movable in a direction outwardly of the channel upon distortion of the sponge during use.
In a window cleaning device of the type consisting of a handle, a head mounted on the handle, the head having a longitudinally elongated channel formed therein, the channel having an inner wall and oppositely disposed side walls, a flange on each of its oppositely disposed side walls projecting inwardly therefrom to form a narrow passage therebetween, a longitudinally elongated sponge having a longitudinally extending mounting portion and a longitudinally extending wiping portion, the mounting portion being mounted within said channel to secure the sponge with respect to the head, a net-like cover extending over the wiping surface of the wiping portion of the sponge and having opposite ends thereof interposed between the side walls of the channel and the mounting portion of the sponge, the sponge having a slit formed in the mounting portion and extending into the wiping portion thereof to receive a stiffener, the improvement of an elongated stiffener member formed from a body of stiff material comprising
- a. a pair of shoulders extending longitudinally of the body and projecting outwardly from the opposite sides of the body to divide the body into a spacer web on one side of the shoulders and a stiffener web on the other side thereof,
- b. the shoulders having a combined width which is greater than the width of said narrow passage,
- c. said stiffener member being located within said slit of said sponge with said shoulder portions thereof disposed within said channel in a face-to-face relationship with said flanges,
- d. said spacer web projecting from said shoulders into engagement with the inner wall of said channel to prevent movement of the shoulders inwardly with respect to the channel such that the sponge and cover are tightly clamped between the shoulders and the flanges, said stiffener web projecting outwardly from said channel to stiffen the wiping portions of the sponge, the stiffener being movable in a direction outwardly of the channel upon distortion of the sponge during use.
Dependencies are inferred from the claim text.