Abstract: A commercial refrigerator for energy savings and a method to operate thereof. The refrigerator comprises a cabinet, the cabinet with a first cavity with an inner part, an access to said inner part and an air chamber set in the inner part, the air chamber comprising a fan which makes the air pass through an evaporator, a thawing resistance which thaws the evaporator, a cover with first slits which allow an air flow emanating from the first cavity towards the inner part of said air chamber and second slits that allow air flow cooled by the evaporator emanating from the inner part of said air chamber to the first cavity; temperature sensors set within the inner part of the air chamber, a first temperature sensor set between the first slit and the fan and a second temperature sensor set between the evaporator and the second slits, said sensors connected to an electronic control.

Abstract: It is depicted a rotating therapeutic bed which comprises: a structural base including in turn wheels located on its lower portion to allow moving the bed from one place to another; a first removable stretcher with a first mattress to support the patient laying on his back; a second removable stretcher with a second mattress being placed in a reversed fashion and over the first stretcher and the patient, who is supported between the mattresses of both stretchers; the second stretcher supporting the patient laying face down when stretchers are rotated by 180° on a rotation axis crossing along the patient; front and rear stretcher mounting and rotation members rotationally mounted on the structural base; the first and second stretchers being longitudinally mounted with a vertical spacing between them in such stretcher mounting and rotation means, which allow also their rotation; and side barriers coupled to the longitudinal sides of the first stretcher, as well as of the second stretcher, such barriers covering

Abstract: A method and apparatus for the recovery of by product gases used in a vacuum metal treatment process or other gas treatments processes are disclosed. The present invention is normally carried out in a process chamber in the last stage of the process, after vacuum processing. The chamber is filled with an inert gas for cooling down the processed metal or other materials load at a certain predetermined pressure. The chamber is connected to a receiver having a pressure control device and a mechanism capable of changing its volume in order to keep constant pressure during the passage of gas from the chamber into the receiver. In addition, there is a cooling or heat transfer device to reduce the recovering gas temperature between the chamber and the receiver. The gas flow is driven by the excess pressure in the chamber during a first transfer period, or by the vacuum pumping system during the last gas transfer period.