Abstract: A cooking appliance, such as a gas grill, includes a cooking pit, at least one radiant gas burner on a side wall of the pit, a receptacle for collecting liquid and cooking juices, and a bottom assembly which is heat-retaining and permeable with respect to the liquids flowing toward the collecting receptacle. The cooking appliance further includes a water spray assembly which allows steam cooking.

Abstract: A heating apparatus has a catalytic burner and a thermal receiver which consumes at least one portion of the heat generated by the catalytic burner. The catalytic burner has a member for ejecting a flow of combustible gas, a member for admixing primary air with the flow of combustible gas to obtain a mixture to be burnt, a chamber for distributing the mixture, and a catalytic combustion structure in communication with the distribution chamber. The combustible gas travels into an upstream face of the catalytic combustion structure, and combustion exhaust gases are removed through a downstream face of the catalytic combustion structure. A radiating flameless combustion front is located in the vicinity of the upstream face of the catalytic combustion structure during operation. A thermal receiver extends along virtually the entire surface of the upstream face of the catalytic structure and receives thermal energy.

Abstract: The invention relates to a regeneration-type cryopump which has an annular reservoir for liquid nitrogen situated above an annular reservoir for liquid helium and incorporates, sliding in the central opening in the said reservoir, a valve member which is mounted on a rod. When the valve member is in one position, the cryopump is in normal operation, whereas when the valve member is in another position and rests against a seating, regeneration may take place.Such a pump may be used for generating very high vacua.