Black Decker Inc.

Oase Gmbh

Andreas Hanke

Achim Buchholz

Ralf Bernhart

Dominik Brune

Reinhard Hembrock

Juri Bugajew

Michael G Kunz

Stefan D Gensmann

Martin Soika

Uwe Nemetz

Heinz-Werner Faatz

Reimund Becht

Reinhard Plietsch

Christoph Bülter

Herbert Lambers

Rainer Schwinden

Martin HÖTTECKE

Jani Bugajew

Markus Dreyer

Christopher Bülter

The invention relates to an underwater switch unit for voltage supply of electrical devices (), particularly in the low voltage range, having a housing () which is preferably designed to be water-tight, in which an electronics unit () is arranged, by means of which an input voltage, which can be connected via an input connection of the underwater switch unit (), can be distributed in parallel to a plurality of output connections () of the underwater switch unit (), wherein at least two of the output connections () can be supplied with voltage separate from each other via at least one switch element () of the underwater switch unit (), and wherein the uncontrolled underwater switch unit () comprises a data bus connection having a related data bus interface, via which an informational signal concerning the voltage connection of an output connection () can be detected.

Underwater switch unit

The invention relates to a lighting system comprising at least one light module (), preferably a plurality of light modules (), which can be installed in e.g. pool walls of swimming baths or footpaths and have at least one LED (), wherein the light modules are each connected by means of at least one system cable () to a common central and bus-capable controller () and can be controlled thereby, wherein the system cable () is provided for power supply to the light modules () and for control of the respective light modules () from the controller (), and wherein in each case a light module () which can be positioned by means of an associated system cable () remote from the controller () has a housing, which is in particular watertight, in which driver means are disposed for supplying power to the LED ().

Lighting system

In a plug connection assembly for a moisture-protected electrical plug connection having at least one plug which has a main body () having a fastening flange () on the front side and a resilient sealing element () arranged on said flange and an electric line cable () emerging rearward from the main body (), a contact carrier () which receives electric contacts () is inserted into the main body () in a form-fitting manner. The fastening flange () can have a rigid contact area () for contact with a socket (), and the sealing element () can have a surface seal () and a raised molded seal () on a partial surface thereof.

Plug connection assembly for a moisture-protected electrical plug connection

A plug for a moisture-protected electrical plug connection has a plug housing having an interior and contact elements secured in the plug housing. Electrical lines extend through the plug housing and are each conductively connected by an electrical connection to one of the contact elements. The electrical lines each have an enveloping insulation. A potting compound fills out the interior of the plug housing. The electrical lines each have a first area without insulation adjoining the electrical connection. An electrically non-conductive spacer is arranged between the first area and the electrical connection. The first area, on a side of the spacer facing away from the electrical connection, is embedded in the potting compound.

Plug for moisture-protected electrical plug connection

A water pump with a housing that has a pump housing part provided with an intake opening and an outlet opening and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric motor is received in the motor housing part. The electric motor is an electronically commutated motor with a rotor and coils. In the housing, control and governing electronics for the electric motor are arranged that have a speed detection, a processor, and a data storage device. The electronics are arranged in the motor housing part and potted therein in a water-tight way. An integrated BUS control module is provided. The control electronics and the governing electronics can be arranged separate from one another on different circuit boards.

Water pump and fountain with pump

A gear wheel is rotatably mounted on a drive shaft. The drive shaft has a plurality of longitudinal splines formed thereon. A drive sleeve surrounds the drive shaft and has a plurality of the inner splines formed on its interior surface. The inner splines slidably intermesh with outer splines of the drive shaft such that the drive sleeve can slide up and down on but cannot rotate relative to the drive shaft. A coil spring biases the drive sleeve downwardly. Drive sleeve teeth are formed around the bottom edge of the drive sleeve. Corresponding gear plate teeth are formed on the upper surface of the gear wheel and are adapted to engage the drive sleeve teeth when the drive sleeve is in its downward most position under the influence of the coil spring. In this position, the gear wheel is operatively coupled to the drive shaft.

Mode change switch for power tool

An electrically powered hammer comprising a hollow spindle within which spindle is reciprocatingly mounted a piston, a ram, a beatpiece having an increased external diameter mid-portion and located within the spindle between the ram and the tool or bit, a two part sleeve arrangement located within the spindle and including an increased internal diameter mid-portion for receiving the increased external diameter portion of the beatpiece and a reduced internal diameter forward and rearward portion for guiding the forward and rearward ends respectively of the beatpiece and where the sleeve arrangement includes a forward sleeve and a rearward sleeve which are both guided with tight radial tolerances and with a slight axial play within and by the spindle and the forward axial movement of the forward sleeve is limited by a reduced diameter portion of the spindle and the forward axial movement of the rearward sleeve is limited by the forward sleeve.

Hammer

A hammer is provided which enables the orientation of a tool or bit mounted within a spindle of the hammer to be rotated to the required orientation. The hammer comprises a housing part having an aperture therein in which a spindle that is mounted so that the spindle extends out of the housing through the aperture. The spindle is capable of being rotated about its axis to any of a plurality of orientations, so as to alter the orientation of a tool or bit mounted therein. A locking ring is located around the spindle which locking ring can be moved axially along the spindle into and out of engagement with the housing part, so that when the locking ring engages the housing, it prevents the spindle from rotating with respect to the housing. A grip ring is located around the spindle and can be rotated about the axis of the spindle from a first position in which it prevents disengagement of the locking ring from the housing. When the grip ring is rotated about the axis of the spindle to a second position, the locking ring is disengaged from the housing, thereby to allow the spindle to rotate with respect to the housing to a different orientation.

A hand held electrically powered hammer comprises a housing, a motor, and a hollow spindle. A piston and a ram are located for reciprocation within the spindle. A casing encloses at least part of the spindle so as to define a chamber between the spindle and the casing. A damping mass is slideably supported by a spacer and is located within the chamber and is connected to the hammer housing via a spring so as to oscillate back and forth along the spindle to minimize the vibration of the hammer housing and also so as to generate air flows within the chamber for facilitating heat transfer from the spindle to the metal casing.

A tool holder for a rotary hammer or chisel hammer, comprising at least one locking element, a supporting ring axially movable between a position supporting the locking element in the locked position and a second position defining a first release position of the locking element and wherein the locking element comprising a shaped element which, on its radially outer side, has a single projection lying between a first recess formed at a front edge of the locking element and a second recess formed at a rear edge of the locking element and the supporting ring has on a radially inner side a single projection lying between a first recess formed at a front edge of the supporting ring and a second recess formed at a rear edge of the supporting ring.

Growing community of inventors

Bad Camberg, Germany

Andreas Hanke