Patent ID: 11859864
Assignee: WUNDERLICH-MALEC ENGINEERING, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 14:
15. An air plenum comprising:
a housing;
a fan located within the housing, the fan configured to emit low-velocity air downwardly through a perforated screen disposed on a lower side of the housing onto a user located beneath the housing;
a slot diffuser extending around a lower periphery of the housing, the slot diffuser configured to emit high-velocity air downwardly from the lower side of the housing to form an air curtain around the user; and
a fan chamber surrounding the fan, wherein the fan chamber comprises four corners and four corner baffles, wherein each of the four corner baffles blocks off a corresponding corner of the four corners to concentrate air in the fan chamber, wherein the fan chamber further comprises an inner fan wall surrounding the fan and an outer fan wall surrounding the inner fan wall, the outer fan wall spaced apart outwardly from the inner fan wall, wherein the inner fan wall is configured to direct air upwardly over the inner fan wall in operation of the air plenum and the outer fan wall is configured to direct air downwardly in operation of the air plenum.