Danfoss A/s

Leif Borge Tandrup

Holger Nicolaisen

Finn Schnoor Andersen

Jens Peter Jensen

The invention relates to a timing pulse generating switch assembly, particularly for the monitoring circuit of an oil or gas furnace, having at least one snap switch provided with a contact arm which carries the movable contact. The movable contact arm is fixed with respect to the housing at one end and there is provided a snap system which adjusts the contact arm. The snap system possesses a snap arm which is fixed with respect to the housing at one end and is preferably formed by the contact arm. The snap system includes a snap spring which is articulated to the snap arm and, at its other end, is articulated to a slide that is reciprocatable by a bimetallic member. The switch assembly includes and is influenced by a locking element that is actuated by separate means such as the armature of a relay. The locking element functions to block the movable contact in its rest position as well as in its operating position by using a blocking member which is carried along by the slide.

Timing pulse generating switch

The invention relates to an omega type spring assembly and particularly the pivotal connection between the omega spring element and a bearing element. In a broad sense the invention involves replacing the conventional knife edge pivotal with a ball and socket connection in which the 'socket' has the form of an elongated aperture with arcuately shaped edges. The 'ball' has a tapered portion which engages the edges and the tapered portion may be spherical, conical or elliptical in shape. There are two contact points between the bearing element and the arcuately shaped edges of the aperture in the omega spring element.

Pivotal bearing for an omega spring

The invention relates to an electrical junction box for use with snap-in type printed circuit board modules. The junction box is connected to some form of electrical apparatus such as an electrical motor. The junction box has terminals to which conductors from the electrical apparatus such as a motor can be clamped. The junction box has a slot with the terminals in alignment on one wall thereof. The slot receives a circuit board module which has contacts which are arranged to respectively engage the terminals in the slot.

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Sonderborg, Denmark

Leif Borge Tandrup