A cover and knob assembly for a coffee percolator; the cover having an opening for the knob. The knob comprises a hollow body closed at one end and open at its other and has its closed end section projecting from and overlying the edges of the cover opening and its open end section extending through the cover opening. The open end section has oppositely laterally facing detent projections at its bottom. A U-shaped spring clip having arcuate sides with the altitude of the arcs greater than the distance between the projections and the underside of the cover, supported on the projections by the convex edges of the arcuate portions of its sides, with the ends of the sides resiliently pressing against the underside of the cover.
A flanged cup-shaped transparent pane member is fitted in a window opening formed in the tank wall and held liquid-tight against the latter by means of a pane retainer plate which is inserted along the wall inside into the pane member through slit means provided therein. The retainer plate fully inserted abuts against a shoulder formation on the wall inside and serves to hold the pane member against inadvertent rotation as well as against falling off the tank wall. That portion of the retainer plate which extends across the follow interior of the cup-shaped pane member serves as a light reflector means for enabling the user to observe the liquid level in the tank with ease and accuracy. A minimum level indicator is formed on the closed end wall of the pane member and a maximum level indicator on the retainer plate at its top for convenience in replenishing the liquid tank.
A coffee-maker is disclosed. It comprises a lid (30) which closes an upper part (10) with an upper chamber. A rising pipe (14) extends into the upper chamber. This pipe has at least one lateral opening (15) in an upper end region. In order to avoid splashing of liquid coming out of the rising pipe (14), a downwardly extending splash guard (34) is present on the lid (30), which guard covers the at least one opening (15) of the rising pipe (14) laterally when the lid (30) is closed.
