← Back to Patent Explorer
US3742725A Expired / Lapsed US ⏱️ 0.0 years remaining

Air conditioning unit

Assignee: Carrier Corp
•
Filing: 1971-12-06
•
Granted: 1973-07-03
•
Expires: 1991-12-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A relatively thin air conditioning unit for modular buildings is provided with a housing having a lower partition and an upper partition which divides the housing into a lower compartment containing a condenser and a condenser fan; a middle compartment containing an evaporator, an evaporator fan and a compressor; and an upper compartment containing a gas or an electric furnace. The lower compartment, including the lower part of the housing, lower partition, the condenser, the condenser fan motor, the evaporator and the compressor are formed as an integral subassembly and mounted to the remainder of the housing by means of interfitting channel shaped side tracks which facilitate disassembly and servicing of the refrigeration section of the unit from the exterior of the building to which the unit is attached.

Inventors

  • 👤 I Berger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 01:10
CPC Classifications
F; F24; F24F; F24F1/00; F24F1/02; F24F1/032; F24F1/0323; F24F1/0328; F24F1/035; F24F1/0373; F24F1/0375

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 306 words
An air conditioning unit comprising: A. a housing, said housing having upper and lower spaced, horizontally extending partitions dividing said housing into a lower compartment, a middle compartment and an upper compartment; B. said lower compartment having a refrigerant condenser disposed therein, a condenser air inlet opening to said lower compartment formed in one side of said lower compartment, a condenser air outlet opening from said lower compartment also formed in said one side of said lower compartment, a condenser fan mounted in said lower compartment for drawing air in said inlet opening, passing the air over the refrigerant condenser and discharging it from the outlet opening to condense refrigerant in said refrigerant condenser; C. said middle compartment having a refrigerant evaporator, a refrigerant compressor and a conditioned air fan mounted therein, said refrigerant evaporator and said refrigerant compressor being mounted adjacent the upper side of said lower partition separating said lower and middle compartments and said conditioned air fan being detachably mounted adjacent the lower side of said upper partition separating said middle and upper compartments, an evaporator air inlet opening to said middle compartment formed in the side of said middle compartment opposite the side of the housing having the condenser air inlet and outlet openings therein, an evaporator air outlet opening formed in the upper partition, said conditioned air fan being disposed to draw air to be conditionEd in said evaporator air inlet opening and pass the air across said refrigerant evaporator and to discharge the air into said upper compartment through said evaporator outlet opening in the upper partition; and D. said upper compartment comprising a furnace section having air heating means therein for heating air discharged into the upper compartment by said conditioned air fan, an air outlet opening formed in a wall of the upper compartment to a desired location.
Claim 2
Dependent Claim 306 words
An air conditioning unit comprising: A. a housing, said housing having upper and lower spaced, horizontally extending partitions dividing said housing into a lower compartment, a middle compartment and an upper compartment; B. said lower compartment having a refrigerant condenser disposed therein, a condenser air inlet opening to said lower compartment formed in one side of said lower compartment, a condenser air outlet opening from said lower compartment also formed in said one side of said lower compartment, a condenser fan mounted in said lower compartment for drawing air in said inlet opening, passing the air over the refrigerant condenser and discharging it from the outlet opening to condense refrigerant in said refrigerant condenser; C. said middle compartment having a refrigerant evaporator, a refrigerant compressor and a conditioned air fan mounted therein, said refrigerant evaporator and said refrigerant compressor being mounted adjacent the upper side of said lower partition separating said lower and middle compartments and said conditioned air fan being detachably mounted adjacent the lower side of said upper partition separating said middle and upper compartments, an evaporator air inlet opening to said middle compartment formed in the side of said middle compartment opposite the side of the housing having the condenser air inlet and outlet openings therein, an evaporator air outlet opening formed in the upper partition, said conditioned air fan being disposed to draw air to be conditionEd in said evaporator air inlet opening and pass the air across said refrigerant evaporator and to discharge the air into said upper compartment through said evaporator outlet opening in the upper partition; and D. said upper compartment comprising a furnace section having air heating means therein for heating air discharged into the upper compartment by said conditioned air fan, an air outlet opening formed in a wall of the upper compartment to a desired location.
Claim 3
Dependent Claim 65 words
An air conditioning unit as defined in claim 1 wherein the lower portion of the housing, the lower partition, the refrigerant condenser, the condenser fan, the refrigerant evaporator and the refrigerant compressor are secured together as a subassembly and the subassembly is secured to the remainder of the unit by relatively slidable means to facilitate installation and removal thereof from the remainder of the unit.
Claim 4
Dependent Claim 352 words
An air conditioning unit comprising: A. a housing, said housing having upper and lower spaced, horizontally extending partitions dividing said housing into a lower compartment, a middle compartment and an upper compartment; B. said lower compartment having a refrigerant condenser disposed therein, a condenser air inlet opening to said lower compartment formed in a side of said lower compartment, a condenser air outlet opening from said lower compartment formed in a side of said lower compartment, a condenser fan mounted in said lower compartment for drawing air in said inlet opening, passing the air over the refrigerant condenser and discharging it from the outlet opening to condense refrigerant in said refrigerant condenser; C. said middle compartment having a refrigerant evaporator, a refrigerant compressor and a conditioned air fan mounted therein, said refrigerant evaporator and said refrigerant compressor being mounted on the upper side of said lower partition separating said lower and middle compartments and said conditioned air fan being detachably mounted on the lower side of said upper partition separating said middle and upper compartments, an evaporator air inlet opening to said middle compartment formed in a side of said middle compartment, an evaporator air outlet opening formed in said upper partition, said conditioned air fan being disposed to draw air to be conditioned in said evaporator air inlet opening and pass the air across said refrigerant evaporator and to discharge the air into said upper compartment through said evaporator outlet opening in the upper partition; D. said upper compartment comprising a furnace section having air heating means therein for heating air discharged into the upper compartment by said conditioned air fan, an air outlet opening formed in a wall of the upper compartment for discharging conditioned air from the upper compartment to a desired location; and E. the lower portion of the housing, lower partition, the refrigerant condenser, the condenser fan, the refrigerant evaporator and the refrigerant compressor being secured together as a subassembly and the subassembly being secured with the remainder of the unit by relatively slidable means to facilitate removal of the subassembly from the remainder of the unit.
Claim 5
Dependent Claim 352 words
An air conditioning unit comprising: A. a housing, said housing having upper and lower spaced, horizontally extending partitions dividing said housing into a lower compartment, a middle compartment and an upper compartment; B. said lower compartment having a refrigerant condenser disposed therein, a condenser air inlet opening to said lower compartment formed in a side of said lower compartment, a condenser air outlet opening from said lower compartment formed in a side of said lower compartment, a condenser fan mounted in said lower compartment for drawing air in said inlet opening, passing the air over the refrigerant condenser and discharging it from the outlet opening to condense refrigerant in said refrigerant condenser; C. said middle compartment having a refrigerant evaporator, a refrigerant compressor and a conditioned air fan mounted therein, said refrigerant evaporator and said refrigerant compressor being mounted on the upper side of said lower partition separating said lower and middle compartments and said conditioned air fan being detachably mounted on the lower side of said upper partition separating said middle and upper compartments, an evaporator air inlet opening to said middle compartment formed in a side of said middle compartment, an evaporator air outlet opening formed in said upper partition, said conditioned air fan being disposed to draw air to be conditioned in said evaporator air inlet opening and pass the air across said refrigerant evaporator and to discharge the air into said upper compartment through said evaporator outlet opening in the upper partition; D. said upper compartment comprising a furnace section having air heating means therein for heating air discharged into the upper compartment by said conditioned air fan, an air outlet opening formed in a wall of the upper compartment for discharging conditioned air from the upper compartment to a desired location; and E. the lower portion of the housing, lower partition, the refrigerant condenser, the condenser fan, the refrigerant evaporator and the refrigerant compressor being secured together as a subassembly and the subassembly being secured with the remainder of the unit by relatively slidable means to facilitate removal of the subassembly from the remainder of the unit.

References Cited (Backward Citations)

US2286491A Cited
US3012762A Cited
US3018642A Cited
US3230733A Cited
US3228459A Cited
US3323625A Cited
US3411569A Cited
US3650122A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-07-02 1977-01-01 1977-07-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-07-02 1981-01-01 1981-07-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-07-02 1985-01-01 1985-07-03 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag