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 numberUS460439 A
Publication typeGrant
Publication dateSep 29, 1891
Filing dateJun 23, 1891
Publication numberUS 460439 A, US 460439A, US-A-460439, US460439 A, US460439A
InventorsGeorge H. Hildreth
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ventilator for mattresses
US 460439 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

NMde1- e. H. HILDRETH.

VENTILATOR FOB. MATTRESSES. No. 460,439. Patented Sept. 29, 1891.

A a l *2.... .uvv .v, n A B fue uws nuns cu., mmmnuo., mwN-mon, u. c.





SPECIFICATION forming part of Letters Patent No. 460,439, dated September 29, 1891.

Application filed June 23, 1891. Serial No. 397,187. (No model.)

To all whom it may concern:

Be it. known that I, GEORGE H. HILDRETH, of Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and Im proved Ventilator for Mattresses, of which the following is a specification, reference being had to the annexed drawings, forming apart thereof, in Which- Figure l is a perspective View of a portion of a mattress to which my invention has been applied. Fig. 2 is aplan view. Fig. 3 is aperspective View of one of the ventilators, and Fig. 4 is a plan view of the same.

Similar letters of reference indicate corresponding parts in' all the views.

The object of my invention is to provide a simple and efficient ventilator for application to mattresses to cause a change of air within the mattress.

My invention consists in a perforated rubber tube furnished with a metallic top and provided with a perforated cover, the said tube being designed for insertion in the body of the mattress from opposite sides at the points Where the mattresses are usually tufted, the ventilators being held in place by the twine used in tufting the mattress.

The ventilator A is formed of a rubber tube a, closed at one end and open atthe otherand provided with perforations b in its sides. The upper end of the tube ct is furnished with a collar c, provided with a transverse slotd, and to the end of the tube is fitted a perforated cover e, of metal or other suitable material, for excludingvermin. AWasherB,of leather or analogous material, is placed under the collar c, and the tubes are inserted in the mattress from opposite sides, as shown in Fig. 1, and are held in place by the twine f, which passes through the mattress over the end of one of the ventilators in the slot d, and thence back through the mattress and over the end of the opposite ventilator in the same Way, being` afterward fastened. The tube a is of suicient length to reach through the layer of cotton which is commonly placed over the curledhair filling of the mattress. The tubes a, being flexible, do not interfere in any way with the efficiency of the mattress.

In case Vthe ventilators are not placed at every point of the tufting the mattress is stitched or tufted With twine in the usual way' at the points Where the ventilators are omitted.

Having thus described my invention, I claim as new and desire to secure by Letters Patentf l. A mattress-ventilator formed'of a flexible perforated tube closed at one end` provided Ywith a transversely-slotted collar at the opposite end, and aperforated cover, substantially as specified.

2. A mattress-ventilator formed of a Iiexible perforated tube closed at one end, provided With a'transversely-slotted collar at the opposite end, a perforated cover, and a washer fitted to the tube, substantially as specified.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6546576 *Nov 5, 2001Apr 15, 2003Ku-Shen LinStructure of a ventilated mattress with cooling and warming effect
US8530681May 30, 2012Sep 10, 2013Alliant Techsystems Inc.Pharmaceutical compositions of O-nitro compounds
US8869329 *Jun 12, 2007Oct 28, 2014Mtj American LlcEncapsulated and filtered mattress
US8931128Mar 2, 2011Jan 13, 2015Mtj American LlcEncapsulated and filtered mattress
US20070283498 *Jun 12, 2007Dec 13, 2007Shelby Timothy WEncapsulated and filtered mattress
US20110154575 *Mar 2, 2011Jun 30, 2011MTJ AmericanEncapsulated and filtered mattress