| Patent Number |
Title Of Patent |
Date Issued |
| 4806490 |
Procedure for the detection of allergen-containing house dust |
February 21, 1989 |
| The invention relates to a procedure to establish the presence of allergen-containing housedust, as results when or after housedust mites occur, in which samples of dust present in buildings are thoroughly suspended in a aqueous-alcoholic alkali metal hydroxide solution and, with the |
| 4666940 |
Acaricidal cleaning composition for controlling house dust mites and process of using |
May 19, 1987 |
| The invention relates to a cleansing composition for treating textile surfaces of interior furnishings, said composition including a liquid, foam-type or pulverulent cleanser and including benzyl benzoate as an acaricidal component as well as a solid which causes a pulverulent residue |
| 4615439 |
Container having a removable sealing cover |
October 7, 1986 |
| In a container having a removable sealing cover and, attached thereto, an application device for the contents of the container, in particular shoe polish, the seal is improved by providing, along the entire periphery of the container and in addition along the periphery of each compartmen |
| 4227316 |
Discharge duct for apparatuses for extracting water from carpets |
October 14, 1980 |
| A liquid-pickup apparatus for carpetry, e.g. for the removal of liquid from the shampooing of a carpet, comprises a slot-shaped compressed air outlet adjacent a discharge duct with an entry slot. The flattened cross-section duct rises at an angle to the horizontal and is subdivided inter |
| 4159555 |
Soil-releasing roller for wet or dry carpet-cleaning apparatus |
July 3, 1979 |
| A rapid-rotation beater or soil-loosening roller for wet or dry carpet-cleaning apparatus which has a circular axial profile and a plurality of inclined angular projections defining between them annular grooves having widths of several millimeters. The roller is formed unitarily or a |
| 4012805 |
Carpet shampooer |
March 22, 1977 |
| A carpet shampooer with prefoaming means for the shampooing agent. The prefoaming means comprises a fixed member on the machine housing having projections which cooperate with formations on the rotating brush or brushes to subject the foaming agent which is introduced between the int |
