US2876480A - Window cleaning device - Google Patents

Description

March 10, 1959 P. VIOLA wmnow CLEANING DEVICE Filed May 17, 1954 TOR.

INVEN P/lUL/NE VIOLA.

ATTORNEY.

.r w -an United States Patent 2,876,480 WINDOW CLEANING DEVICE Pauline Viola, Flushing, N. Y., assignor of twenty percent to Matthew J. Viola, twenty percent to Angelo Viola, twenty percent to Rosalie Viola, and twenty percent to Constance Pesklo, New York, N. Y.

Application May 17, 1954, Serial No. 430,073

2 Claims. (Cl. 15-232) This invention relates to improvements in Window 7 cleaning appliances, and more particularly to the type employed for cleaning a window on both sides simultaneously, and distinguishes itself from prior art in its simplicity of construc ion and application.

The fault found with many window cleaning devices resides in their complicated construction and maintenance as well as in their operation.

It is therefore an object of the present invention to provide a window cleaning device of such design as to simplify its construction and application.

It is another object of the present invention to devise means whereby a cleaning cloth used in association with the window cleaning device can be securely applied without effort and easily removed the same way.

It is a still further object of this invention to provide a window cleaning device of sturdy, yet simple and lightweight construction, having no removable parts other than the cleaning cloth.

These and other objects will become apparent upon reading the following specification and referring to the accompanying drawings, which form a material part of this disclosure.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts, which will be exemplified in the construction hereinafter described, and of which the scope will be indicated by the appended claims.

In the drawings:

Fig. 1 illustrates a portion of a window in perspective showing the window cleaning device made according to a nonelected form in operation;

Fig. 2 is a view taken on line 22 in Fig. 1;

Fig. 3 is a side elevational view of a window cleaning device according to a nonelected form, with the cleaning cloth applied thereto; v

Fig. 4 is a front elevational view of the device of Fig. 3;

Fig. 5 is a detailed view of a retainer spring shown in Fig. 3 and Fig. 4;

Fig. 6 is a side view of the device of Fig. 5;

Fig. 7 is a view illustrating the head and spring portions of a window cleaning device in the preferred form (the cleaning cloth being removed for clarity);

Fig. 8 is a side view of the device of Fig. 7;

Fig. 9 is a view of a window cleaning device in a modified form, the cleaning cloth being removed for clarity; and

Fig. 10 is a side view of Fig. 9.

Referring now more particularly to the drawings, which show examples of carrying out the invention, nu-

2,876,480 Patented Mar. 10, 1959 23 and 24 are shown as being integral with the arms 20, t

21, but it is understood however that they may be separately attached. It is evident that in this particular construction the holder for the blocks 23, 24, is substantially U-shaped in construction and lends itself readily to being made of suitable plastic material.

The arms 20, 21, are narrower than the blocks 23, 24, thus providing a surface 25 to which are attached two flat spring members 26 by means of rivets 27. These springs are illustrated in Figs. 5 and 6. Perforations 28 are provided for receiving the rivets 27. The spring members 28 are preferably not made flat, but are made corrugated, providing the bent or depressed portions 29 and the raised portions 30. The portions 30 are loose. that is, they can be sprung upwardly and are preferably provided with the projections 31 made out of the material comprising the fiat spring 26; Projections 31 are intended to provide means to penetrate the cleaning cloth when the latter is applied to the blocks 23, 24, thus securely gripping the same while the window cleaning device is in operation. The cleaning cloth 32 in its operable condition is folded over the blocks 23, 24, as indicated by the numeral 33. In this embodiment, it can be readily seen that the two arms 20, 21, of the window cleaning device are spaced apart to permit passage thereof of the window sash and manipulation of the device from there on is a simple operation.

Figs. 7 and 8 illustrate the invention in its preferred form, particularly in the block and spring construction. The spring construction in these figures facilitates the gripping of the cloth (not shown) on all four sides. Block 41 is shown flush with the outside surface of the arm 42. The spring 43 comprises four substantially T-shaped sections or legs 43a providing cross members 44, the whole substantially presenting in form a Maltese cross. Projections 31 are provided for gripping the cloth (not shown). Rivets or screws 45 secure spring 43 to block 41.

Figs. 9 and 10 illustrate an improvement over the window cleaning device disclosed in U. S. Patent No. 1,471,871, in that the cloth-holding block or cleat 50 is made integral with the arms 51 and 52. Instead of adhesively securing the cloth or pads to the cleats, the present improvement provides for the removable holding of the cloth to the blocks 50 by means of flat springs 53, which may be similar in. construction to that shown in Figs. 5 and 6, but arranged in cross-wise fashion. The bottom construction of the holder which is in lieu of the bridge 22 hereinabove described consists of a block 54 held between the arms 51, 52, by means of bolts or wing nuts 55. A tension adjusting bolt 56 is provided to add to the pressure of the pads of cloth against the window pane 18 when the device is in operation.

It is apparent that in the construction shown in Figs. 9 and 10, the arms 51, 52, together with the block 54, essentially comprise a U-shaped holder for the blocks 50.

From the foregoing, it is seen that the present invention provides a device which fully accomplishes the in tended objects, and which is well adapted to meet practical conditions of use.

Although the invention has been described in some detail by way of illustration and example for purposes of clarity of understanding, it is understood that certain changes and modifications may he made within the spirit of the invention and the scope of the appended claims.

Having thus described the invention, What is claimed as new and desired to be secured by Letters Patent is:

1. In a block for use on a U-shaped window cleaning holder, resilient means secured to said block for holding a cleaning cloth between it and said block, said resilient means comprising a resilient sheet of generally crossshaped configuration and disposed on a face of said block,

I 4 said sheet being fixed centrally thereof to said block with the outer cross portions resiliently abutting a face of said block.

2. In a block according to claim 1, including penetrating means on said outer cross portions adapted to pierce portions of a cleaning cloth interposed between said outer sheet portions and said block.

References Cited in the file of this patent UNITED STATES PATENTS 680,057 Mart Aug. 6, 1901 1,454,373 Bonney May 8, 1923 2,285,412 Caldwell June 9, 1942 Huntsman-t",

Images