Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1357869 A
Publication typeGrant
Publication dateNov 2, 1920
Filing dateJun 5, 1920
Priority dateJun 5, 1920
Publication numberUS 1357869 A, US 1357869A, US-A-1357869, US1357869 A, US1357869A
InventorsHoward Sr John A
Original AssigneeCamward Engineering Co Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1357869 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)




Patented Nov. 2, 1920.




Specification of Letters Patent.

Patented Nov. 2, 1920.

To all whom, it may concern:

Be it known that I, JOHN A. HOWARD, Sn, a citizen of the United States, residing at West New Brighton, S. I., in the county of Richmond and State of New York, have invented new and useful Improvements in WVindow-Cleaners, of which the following is a specification.

This invention relates to improvements in Window cleaners and one of the principal objects is to provide a device of this nature in which by cleaning one side of the window a device will be automatically operated to clean the opposite side thereof.

Another object is to provide magnetically operated means for this purpose.

Other objects will appear from the following description and claims.

All of these objects are accomplished by means shown in the accompanying drawing comprising one sheet, in which Figure 1 is a fragmentary elevational view of a portion of a window with my attachment in place.

Fig. 2 is a vertical sectional view of the same.

Fig. 3 is a detail View of one of the cleaning elements. I

Like characters of reference refer to like parts throughout.

This invention contemplates the providing of a window cleaning element mounted on lazy-arms and adapted to be clamped to one side of a Window or the like and operable by a second cleaning element comprising an electromagnet.

Referring more particularly to the drawings, 1 represents a window glass and 2 the supporting sash therefor.

A clamp or bracket 3 may be attached to the sash or other convenient portion of the window or the frame by means of a thumb nut or like device 4:-

Pivotally mounted on'the member 3 is a pair of lazy-arms 5 sufliciently extensible to reach all parts of the glass 1. Secured to the free end of the lazy-arms 5 is a cleaning element 6 which comprises a body portion 7 of steel or iron to which is secured by spring clips 8 or similar securing means, a sponge, cloth or other cleaning material 9.

A cleaning element 10 is provided with an electromagnet to which may be secured wires 11 from an ordinary socket. Member 10 is proyided with a hand hold 12 and it carries on its underside a sponge or other cleaner similar to the member 6.

The operation of the device is as follows Clamp 3 is secured to the sash of a window with the element 9 ressed against the outside of the glass. The operator then turns the electric current through the magnet in the element 10 and grasping handle 12, proceeds to clean the inner surface of the glass with said element 10. The magnet will draw the member 7 along and will press it into intimate relation with the outer surface of the glass so that both inside and outside of the window are cleaned simultaneously.

A transformer or booster for the current may be inserted in the circuit as at 13.

While I have described what I consider to be the most desirable embodiment of my invention, it is obvious that many of the details may be varied without in any way departing from the spirit of my invention; and I therefore do not limit myself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claims.

What I claim as new and desire to secure by Letters-Patent is 1. In a device of the class described, the combination of window-cleaning elements, one of which comprises an electromagnet and the other of which comprises material adapted to be attracted by said magnet, and means for movably supporting the second element for operation a ainst one side of a pane by the first said e ement on the other side of said pane.

2. In a device of the class described, the combination of a window-cleaning element comprising a magnet, a second windowcleaning element comprising material adapted to be attracted b said magnet, said elements ada ted to c ean opposite sides of a window g ass, extensible means secured to and supporting said second window-cleaning element, and means for removably securing handle secured to one of said elements for said extensible means to a Window. moving it over one side of a window glass 3. In a device of the class described, the to simultaneously clean both sides of said 10 combination of a window-cleaning element window glass. 5 comprising a magnet, a second window- In testimony whereof I have aflixed my cleaning element comprisin material ada tsignature.

ed to be attracted by sai magnet, an a JOHN A. HOWARD, SR.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2507559 *May 6, 1949May 16, 1950D Andrea RoccoMagnetic window-cleaning device
US2634444 *Aug 6, 1947Apr 14, 1953Coleman GregoryWindow cleaner having companion magnets
US2805438 *Feb 29, 1952Sep 10, 1957Hogensen Emory NMagnetic window washing apparatus
US3058141 *Aug 25, 1958Oct 16, 1962Gen Motors CorpWindshield cleaning system and wiper blades therefor
US6634052Jun 19, 2001Oct 21, 2003Bakker Holding Son B.V.Apparatus for remotely cleaning interior walls of tanks from the tank exterior
US6865771Aug 8, 2003Mar 15, 2005Bakker Holding Son B.V.Apparatus for remotely cleaning interior walls of tanks from the tank exterior
US7313840 *Jul 25, 2003Jan 1, 2008Charles E. WatkinsInduction liquid pump and magnetic tank scrubber
DE102010054609A1 *Dec 15, 2010Jun 21, 2012Deutsches Elektronen-Synchrotron DesyLow or high pressure chamber i.e. vacuum chamber, for use in e.g. synchrotron radiation applications, has inner and outer positioning parts supported along respective movement axes, where axis of outer part is parallel to axis of inner part
DE102010054609B4 *Dec 15, 2010Nov 15, 2012Deutsches Elektronen-Synchrotron DesyDruckkammer für Überdruck oder Unterdruck
WO2006078921A1 *Jan 18, 2006Jul 27, 2006Oceanetics IncAquarium cleaner
U.S. Classification15/250.11, 15/244.1, 15/220.2, 73/324
International ClassificationA47L1/00, A47L1/12
Cooperative ClassificationA47L1/12
European ClassificationA47L1/12