Assignee: Ardco, Inc.

Location: Chicago, IL
No. of patents: 32

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Number	Title	Issue Date
6481231	Hot gas defrost refrigeration system A hot gas defrost system for a refrigeration cycle, including at least a compressor, reversing valve, condenser and evaporator. During defrost, the reversing valve directs the superheated refrigerant from the compressor to the evaporator. The hot gas trav...	11/19/2002
6125652	Apparatus for minimizing refrigerant usage A refrigeration system is provided with a receiver and a plate attached to the mouth of the outlet tube of the receiver to prevent the formation of a liquid refrigerant vortex. The mouth of the receiver outlet tube has an enlarged cross-sectional area to ...	10/03/2000
5715889	Heat exchanger and the method for producing same An improvement in a fin and tube heat exchanger of the type used in condensers, evaporators, and fluid coolers in refrigeration systems and the like. The fin and tube heat exchanger comprises at least one coil including fins, tubes and a support. The impr...	02/10/1998
5622414	Refrigerator display cabinet with thermally insulated pivotable all glass front window panel A refrigerator display case having a plurality of insulated glass window panels mounted in side-by-side relation for pivotal movement about an upper horizontal pivot axis. Each of the window panels has a substantially all glass front appearance, unencumbe...	04/22/1997
5471372	Lighting system for commercial refrigerator doors A commercial refrigerator cabinet is illuminated by fluorescent lamps which are located closely behind insulated glass doors for closing the cabinet. Each lamp is located behind a reflector and is at least partially enclosed by a clear plastic lens having...	11/28/1995
5255473	Refrigerator door assembly with stylized substantially all glass front A multi-pane insulated glass door assembly in which the forward pane of the glass unit extends outwardly a greater distance than the panes rearwardly thereof and is supported by an outer metal frame having a relatively narrow forwardly extending perimeter...	10/26/1993
5244273	Door hold-open device A device for automatically holding a refrigerator door releasably in a fully open position relative to a refrigerated display cabinet. The device includes an elongated spring arm connected pivotally to a frame member of the cabinet and formed with an elon...	09/14/1993
5214877	Refrigerator door assembly with venting system A vent plate is attached to the bottom frame member of a door mounting frame of the insulated door assembly of a refrigerator unit. The vent plate includes passages which enable ambient air to be drawn into the cabinet of the refrigerator unit at a contro...	06/01/1993
5207490	Safety latch for the lid of a lift-top cabinet A gas spring is connected between a cabinet and a lift-top lid and releasably holds the lid upwardly in a fully open position with respect to the cabinet. Gravity automatically pivots a safety latch into latching relation with the cylinder of the gas spri...	05/04/1993
5161289	Header machine A header machine for drilling specified hole patterns in pipe and for cutting the pipe to a specified length to form headers for use in heat transfer products. The header machine includes hold clamps for selectively holding the pipe during the processing ...	11/10/1992
5129246	Tubing expander A mechanical expander for tubing for heat transfer products. The tubing expander includes one or more elongated rods, each having an enlargement on the forward end thereof for insertion into tubing to be expanded. The rods are supported on a carriage whic...	07/14/1992
5116274	Refrigerator display cabinet with thermally insulated pivotable window pane A refrigerator display cabinet having a front opening and a thermally insulated multiple-glass pane window panel mounted for pivotal movement about a horizontal axis adjacent the upper marginal end of the window panel. The window panel has an internal sol...	05/26/1992
5111618	Refrigerator door assembly with stylized substantially all glass front A multi-pane insulated glass door assembly in which the forward pane of the glass unit extends outwardly a greater distance than the panes rearwardly thereof and is supported by an outer metal frame having a relatively narrow forwardly extending perimeter...	05/12/1992
5035085	Refrigerator door assembly with thermal insulated door mounting frame A refrigerator door assembly having a door mounting cabinet frame which has a thermally efficient composite design comprising a non-metallic pultrusion-formed structural frame member and an outer metallic trim panel mountable on the structural frame membe...	07/30/1991
5024023	Insulated refrigerator door assembly with substantially all glass front doors A multi-pane insulated glass door assembly in which the forward pane of the glass unit extends outwardly a greater distance than the panes rearwardly thereof and is supported by an outer metal frame having a relatively narrow forwardly extending perimeter...	06/18/1991
5016146	Refrigerator light assembly with bulb insulating and protective sleeve A refrigerator cabinet light fixture assembly comprising an elongated base with an electrical socket at each end thereof, an elongated bulb supported between the sockets, and a clear plastic tubular sleeve concentrically supported about the bulb for defin...	05/14/1991
4998382	Insulated refrigerator door assembly with substantially all glass front doors A multi-pane insulated glass door assembly in which the forward pane of the glass unit extends outwardly a greater than the panes rearwardly thereof and is supported by an outer metal frame having a relatively narrow forwardly extending perimeter portion ...	03/12/1991
4948206	Refrigerator door assembly with decorative front trim panels A refrigerator door assembly mountable in an opening of a refrigerator cabinet including a door mounting cabinet frame having a front wall positionable against the cabinet adjacent the opening and a plurality of insulated glass doors mounted in the cabine...	08/14/1990
4941289	Refrigerator door frame with insulated mullion A refrigerator door assembly having a door mounting frame with at least one mullion that includes a primary metallic structural frame member, a plastic insulating plate positioned adjacent a rear side of the primary structural frame member, a channel shap...	07/17/1990
4891912	Refrigerator door assembly with multiple gasket sealing arrangement A refrigerator door assembly having a thermally efficient door mounting frame which includes a forward structural frame member mounted within the opening of a refrigerator cabinet for providing an attractive finished appearance for the frame, a separate r...	01/09/1990
4852303	Refrigerator door frame with insulated mullion A refrigerator door assembly having a door mounting frame with at least one mullion that includes a metallic structural frame member and a magnetically attractable sealing plate mounted forwardly on the mullion for defining a stop and sealing surface for ...	08/01/1989
4831780	Refrigerator door assembly with thermal break frame A refrigerator door assembly having a thermally efficient door mounting frame which includes a forward structural frame member mounted within the opening of a refrigerator cabinet for providing an attractive finished appearance for the frame, a separate r...	05/23/1989
4753043	Pivotally mounted insulated glass door assembly with self-contained structural support frame A refrigerator door assembly comprising a plurality of insulated doors each mounted for pivotal swinging movement about a vertical axis. The insulated doors each comprise a plurality of glass panes disposed in side-by-side relation with a structural frame...	06/28/1988
4741127	Refrigerator door with thermal insulated outer frame A refrigerator door assembly comprising a plurality of insulated glass doors mounted in a cabinet frame for relative movement. The glass doors each includes an insulated glass unit having a plurality of glass panes disposed in side-by-side relation, a met...	05/03/1988
4656781	Sliding door assembly A door assembly describing a stationary frame having doors mounted therein for relative translational movement. Each door includes a self-closing mechanism comprising a flexible tubular member affixed at one end to the frame and a follower secured to the ...	04/14/1987
4641461	Sliding door assembly A door assembly describing a stationary frame having doors mounted therein for relative translational movement. Each door includes a self-closing mechanism comprising a flexible tubular member affixed at one end to the frame and a follower secured to the ...	02/10/1987
4578902	Reversible refrigerator door with improved electrical outlet mounting arrangement A refrigerator door construction including a mounting frame having at least one vertical mullion disposed between side members and interconnecting upper and lower members, at least a pair of reversible doors swingably mounted in the frame in selective lef...	04/01/1986
4430770	Door operating mechanism A door-operating mechanism is disclosed which is particularly suited for use with hingedly mounted swinging glass doors of a refrigerated display cabinet. The door operating mechanism includes an extensible gas spring biased toward an extended condition, ...	02/14/1984
4428096	Hold-open mechanism for refrigerated display cabinet having cooperating spring and lobed plate A hold-open mechanism is disclosed which is particularly suitable for use on a self-closing door assembly for a refrigerated display cabinet. The hold-open mechanism includes a stop plate carried by the hinged door, and a hold-open spring mounted on the d...	01/31/1984
4416086	Adjustable door mounting arrangement for refrigerated display cabinets An improved adjustable mounting arrangement for mounting a glass door assembly on a door frame for a refrigerated display cabinet. The mounting arrangement includes upper and lower hinge assemblies for providing swinging movement of the door assembly rela...	11/22/1983
4261179	Input control system An input control system having a sensing circuit, a switching circuit and a source of power isolated from the sensing circuit and the switching circuit. The sensing circuit includes a sensor having a variable electrical characteristic, a detector for dete...	04/14/1981
4145844	Refrigerator door construction A rectangular glass panel refrigerator door is provided with a mitered frame construction. The door frame has two vertical side frame members and two horizontal cross frame members. Each frame member is generally channel-shaped and has a front wall, an in...	03/27/1979

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Assignee: Ardco, Inc.