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

Claim 0:
1. An air plenum comprising:
a housing;
a fan centrally 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 continuously 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;
a fan chamber surrounding the fan, the fan chamber shaped in a square, the fan chamber comprising corner baffles, wherein each corner baffle blocks off a corresponding corner of the fan chamber to concentrate air in the fan chamber, wherein the fan chamber further comprises an inner fan wall surrounding the fan, wherein the inner fan wall directs air upwardly over the inner fan wall in operation of the air plenum, wherein the fan chamber further comprises an outer fan wall surrounding the inner fan wall, wherein the outer fan wall is spaced apart outwardly from the inner fan wall, and wherein the outer fan wall is configured to direct air downwardly under the outer fan wall in operation of the air plenum.