Surgery – Truss – Perineal
Patent
1990-09-04
1991-11-26
Hafer, Robert A.
Surgery
Truss
Perineal
128 65, 4538, 4541, 4542, 4543, 4544, A61H 900
Patent
active
050674811
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a control device for an air-bubble massage appliance with a housing in which a blower drivable by means of an electric motor and enclosed by a cover is positioned, in which an external housing consisting of a lower housing part and an upper housing part contains an internal housing with a connecting piece for an air hose, which extends toward the external housing and is connected to a hose connecting opening of the external housing, where the external housing and the internal housing are provided with water discharge openings so that water returning into the internal housing through the connecting piece is isolated from the electric motor when the blower is shut off and can flow out of the internal and external housings, and where the external housing, which is comprised of the lower housing part and the upper housing part, which are connected with each other in an air tight manner, is divided along a horizontal separation plane.
2. Description of Prior Art
A control device of this type is disclosed by German DE-C 37 38 364. In this known control device, the electric motor and the blower are placed horizontally in the housing but positioned outside of the internal housing. The air aspirated by the blower is conducted into the inner chamber of the internal housing through a compressed air connector, which is in contact with the blower, to a fixed place above the hose connecting piece. In this case, part of the internal housing covers the blower. As a result, the electric motor is not adequately cooled and it is not possible to clean and heat the aspirated air in a simple and effective manner.
It is the object of this invention to provide a control device of the previously mentioned type, in which the structure of the external and internal housings results in an improved flow of the aspirated air and also provides an opportunity for the installation of additional devices, if desired, (for example a heating element for heating and a filter for cleaning the aspirated air) without hindering the drainage of the water which may be returning.
This object is attained in accordance with this invention by an internal housing consisting of an aspirating hood and a blower hood divided in a horizontal separating plane and connected airtight at the separating plane, with an electric motor housed in the aspirating hood positioned above the blower hood and on its underside inside the blower hood driving a fan wheel or a plurality of fan wheels on a vertical shaft surrounded by a cover, where the aspirating hood holds the electric motor in the upper area of the aspirating hood by means of a profile packing, creating an aspirating chamber which is in contact with the external housing, where the cover is provided with circumferentially positioned air outlet slits and is sealed on both sides thereof by means of profile packings against the blower hood, where the open underside of the blower hood, positioned at a distance from the floor of the lower housing part and functioning as an aspirating opening, is connected to an aspirating conduit which issues from the inner chamber of the aspirating hood, where the water discharge opening is positioned in the floor of the lower housing part which is provided with at least one air aspirating opening, the connecting piece of the blower hood is aligned horizontally and is connected with the air exhaust slits of the cover of the fan wheel, where the lower housing part of the exterior housing is provided with at least one air aspirating opening, and where the water discharge openings of the exterior housing and the interior housing are positioned so as to overlap each other in the lower area of the aspirating conduit of the aspirating hood.
By means of the upright arrangement of the external and internal housings, two separate chambers are formed, where the aspirated air is aspirated at the floor of the external housing and enters the internal housing at the top of the internal housing and only reaches the ch
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patent: 2793640 (1957-05-01), Schwartz
patent: 3286712 (1966-11-01), Roden
patent: 3481328 (1969-12-01), Powell
patent: 3695781 (1972-10-01), LaBarber
patent: 4004302 (1977-01-01), Hori
patent: 4325149 (1982-04-01), Moreland
patent: 4518325 (1985-05-01), Kingston
patent: 4726917 (1988-02-01), Abe
Hafer Robert A.
Hanlon Brian E.
Metronic Electronic GmbH
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