Dispenser for liquid disinfectants, surfactants, and the like

• US 5,842,608 A
• Filed: 02/20/1996
• Issued: 12/01/1998
• Est. Priority Date: 08/19/1993
• Status: Expired due to Fees

• Current Assignee: Rainer Buchler
• Original Assignee: Rainer Buchler
• Inventors: Buchler, Rainer
• Primary Examiner(s): KAUFMAN, JOSEPH A
• Application Number:
  US08/602,744
• Time in Patent Office: 1,015 Days
• Field of Search: 222/129, 222/181.2, 222/181.3, 222/185.1, 222/341
• US Class Current: 222/181.3
• CPC Class Codes: A47K 5/12 for liquid or pasty soap
• CPC Class Codes: A47K 5/1204 by means of a rigid dispensing chamber and pistons

Abstract

Usual liquid soap dispenser and the like are surface-mounted on the wall of a sanitary area and have an electrically or mechanically driven liquid pump, for example a swiveling lever. Besides the liquid pump, a sufficiently large liquid container must be arranged in the housing of the liquid soap dispenser, so that the liquid soap dispenser is bulky and more susceptible to soil and aging in the wet area. A liquid dispenser to be mounted in the wall is to be arranged as a unit behind a tile, so that the liquid container may swivel together with the tile. By actuating a bellows at the top side of the tile, pressure is applied on the liquid container, and liquid soap is ejected through an outlet. The liquid container associated to the tile is forcibly small. The distribution of small portions of liquid soap is thus not ensured. According to the invention, the dispenser (1; 133) is constituted of an elongated built-in housing (10; 110) that can be inserted into a cylindrical drilled hole (26), and of an elongated unit that may be slid for the most part into the built-in housing (10, 110). This elongated unit has a first slide in section (11; 130) with a reservoir (2, 3; 102) and a dosing pump (7; 107), and a second outer section with a mechanical pump drive (9; 129) with a push button (37, 74). The second outer section is integrated into an outer panel (5; 105) that cover the built-in housing (10; 110) in the wall.

Claims

1. Dispenser for liquid, comprising one supply container having a liquid outlet opening, a pump unit located between a lower liquid outlet of the one supply container, the lower liquid outlet being provided adjacent a bottom of the one supply container, and the liquid outlet opening, the pump unit extending substantially horizontally from the lower liquid outlet of the one supply container in the vicinity of the bottom of the one supply container, a housing part receiving said supply container, the dispenser being designed as a module that can be inserted into a wall installation opening, wherein the housing part is designed as an elongate wall installation housing in the form of a hollow cylinder, and the supply container, the pump unit and the liquid outlet opening form an elongate module having an outer section formed by an external shield having a dispensing head projecting axially outward therefrom, in which head the liquid outlet opening, an outer actuating element for the pump unit consisting of a metering pump, a mechanical pump drive and an overpressure valve that blocks the liquid outlet opening at normal pressure are provided, said module being so dimensioned that a section up to the outer section defining an installation element can pass through an open end of the wall installation housing and can be inserted into and removed from said wall installation housing, wherein the installation element can be fastened from the outside to the wall installation housing by releasable connecting means.