Automatic temperature and humidity regulation – Mixing fluid of dissimilar temperature – Having oscillating or reciprocating valve
Patent
1997-10-17
1999-11-09
Tapolcai, William E.
Automatic temperature and humidity regulation
Mixing fluid of dissimilar temperature
Having oscillating or reciprocating valve
236 42, 236100, G05D 2313
Patent
active
059797770
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a sanitary mixing faucet with a thermostat device, with a thermostat cartridge which has an overtravel unit, the latter having a sleeve body, at least one compression spring element and at least one thrust piece against which the compression spring element acts, the sleeve body in the area of its two ends having one stop each, and one stop being used at least indirectly as an abutment for the thrust piece, and the other stop being used at least indirectly as an abutment for the compression spring element.
Sanitary mixing faucets with thermostat device and thermostat cartridges for these mixing faucets with an overtravel unit of the indicated type have been known for a long time. The known overtravel unit with sleeve body, compression spring element, and thrust piece was produced in the past such that first a metal sleeve was edged on one side. Then the thrust piece and the compression spring element were inserted, i.e., pushed into the tubular opening of the sleeve. Then the sleeve was sealed to the top by the other end being edged. Overall the required cost of producing the overtravel unit is relatively large, last but not least due to the edging.
The invention takes a new approach and avoids the aforementioned defects by the sleeve body in the unmounted state of the overtravel unit being hinged and by there being two stops even before insertion of the compression spring element and thrust piece. For the sake of clarity it should be mentioned that the expression "hinged" in this connection means that the sleeve body is made such that the compression spring element and thrust piece can be inserted transversely to the longitudinal axis which passes through the sleeve body into the latter, while in the prior art the two aforementioned components must be pushed into the sleeve body parallel to the longitudinal axis. Because the sleeve body is hinged and due to the stops which are used as abutments for the thrust piece and compression spring element and which are already present in the unmounted state, it is ensured that the double edging of the sleeve body after insertion of the thrust piece and compression spring element is no longer necessary. Without loss of function, but much more cost favorably can the thrust piece and compression spring element now be inserted into the opened sleeve body which is then folded shut or closed.
With regard to simple assembly and also for reasons of production technology, it is advantageous if the sleeve body has at least two preferably identical shells which are made as separate components or which can be joined to one another via a hinge. Insertion of the thrust piece and the compression spring element into the sleeve body then takes place such that the two aforementioned components are first inserted into the shell. Then the other shell is attached; the sleeve body is so-to-speak hinged on. The thrust piece and/or the shells can be produced especially cost-favorably and easily, if they are made of plastic, especially POM.
The invention furthermore relates to a mixing faucet with thermostat device with a thermostat cartridge with a control body located in the cartridge housing, and with a seal located in the groove of the control body, especially a membrane seal.
The disadvantage in the known mixing faucets of the above described type is that the control body can easily fall out of the cartridge housing when not installed. This can make mounting and dismounting difficult. In addition, the control body can be damaged when it falls out of the cartridge housing. This applies especially to the control edges of the control sleeve which belongs to the control body or a flexible element connected to the control sleeve.
The invention takes a new approach and avoids the aforementioned defects by there being a snap ring which can be locked to the cartridge housing for holding the control body in the latter. By means of this measure which appears simple in retrospect, the cartridge housing and the control body form a unit which can be handled jointly and whic
REFERENCES:
patent: 3685728 (1972-08-01), Chapou
patent: 3765604 (1973-10-01), Trubert et al.
patent: 3955759 (1976-05-01), Knapp
patent: 4607788 (1986-08-01), Vendall et al.
patent: 5205483 (1993-04-01), Kostorz
patent: 5230465 (1993-07-01), Kostorz et al.
patent: 5242108 (1993-09-01), Heimann et al.
patent: 5344067 (1994-09-01), Axelsson et al.
Ideal-Standard GmbH
Safran David S.
Tapolcai William E.
LandOfFree
Sanitary mixer tap with a thermostatic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sanitary mixer tap with a thermostatic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sanitary mixer tap with a thermostatic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1445294