US2218632A - Refrigerated drawer unit - Google Patents

Refrigerated drawer unit Download PDF

Info

Publication number
US2218632A
US2218632A US305815A US30581539A US2218632A US 2218632 A US2218632 A US 2218632A US 305815 A US305815 A US 305815A US 30581539 A US30581539 A US 30581539A US 2218632 A US2218632 A US 2218632A
Authority
US
United States
Prior art keywords
freezing section
ducts
shell
drawers
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US305815A
Inventor
Baird William Mckinley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US305815A priority Critical patent/US2218632A/en
Application granted granted Critical
Publication of US2218632A publication Critical patent/US2218632A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
    • A47F3/0404—Cases or cabinets of the closed type
    • A47F3/0408—Cases or cabinets of the closed type with forced air circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/12—Removing frost by hot-fluid circulating system separate from the refrigerant system
    • F25D21/125—Removing frost by hot-fluid circulating system separate from the refrigerant system the hot fluid being ambient air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0683—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans not of the axial type

Definitions

  • Fig. 1 is a front elevation of the outer face of my refrigerated drawer unit
  • Fig. 2 is an enlarged front view of a tier 20 of the drawers
  • Fig. 3 is a side elevation of the tier shown in Fig. 2
  • Fig. 4 is drawn on line iiof Fig. l and shows an elevational view of an end of the unit with the inlet and outlet ducts and .the circulating ducts in dotted lines
  • Fig. 5 is line 5--5 of Fig. 1 and shows an inside view from the end of the freezing section with the panel removed
  • FIG. 11 is an enlarged sectional view of the duct with 35 closure block and operating crank
  • Fig. 12 is a detailed view of the double window shown in Fig. 9.
  • the embodiment selected to illu trate my invention comprises a unit 40 metal and wood, or any other suitable materials, having suitable insulation I2, and tracks i3 attached to the shell H upon which side drawers It.
  • a freezing section IS At one end of the unit I!) and attached thereto by vertically extending strips I5 suitably crimped together is a freezing section IS.
  • the freezing section l6 has therein a compressor ill with a coil is, motor l9, fins and circulating fans 2
  • air comes into freezing section 5 i6 through duct 23 and passes upwardly.into chamber 24, through fins 20 into blowers 2i, whence it is expelled through ducts 25 into unit [0 by way of duct 26 into circulating ducts 21 to outlet duct28. The air then circulates through 55 and around the open portions of the drawers i i in having shell n of.
  • a display shelf 36 is positioned behind window to hold vegetables, fruits, biologicals or the like so that the same may be viewed from the exterior 15 of the unit for display and demonstration purposes.
  • Figs. 6 and 8 the window 35 is shown as in the 'end panel 38 of the freezing section it. It is within the contemplation of my invention to have 26 the window 35 on either theyfront or back faces of myfreezing section It. v
  • Fig. l I have shown a unit it formed of four tiers of drawers in combination with a freezing section it, each tier having four drawers as illus- 25 trated in Fig. 2. It is of course within the spirit of my invention that my unit it may be smaller or larger and that it may be formed of one or any plurality oftiers of drawers together with a freezing section. course not limited to four drawers but may be of any desirable number of lockers.
  • the tiers may be joinedtogether to form the unit it) by a connecting strip 3'l'as shown in Fig. 1.
  • a refrigerated drawer unit comprising an insulated shell, a plurality of tracks attached to the inner walls of said shell, a plurality of drawers of substantial length, breadth and'height slidable on said tracks, said drawers having lmperforate front walls,said'shel1 having a plurality of spaced openings to receive said front walls, said front' walls have handles to permit any oi'said drawers to be withdrawn from the shell to allow access thereto, said drawers having open air receiving portions, a freezing section having an outer casing attached to one end of said shell and forming a part of the unit, said freezing section having chamber, a compressor, a coil, a plural-
  • the tiers of drawers are of 30" ity of fins, a pair of blowers, a motor for actuating the compressor for refrigerating the air in the chamber, air exit ducts leading from the upper portion of the chamber, and a motor for actuating 5 said blowers for expelling cold air from the chamber
  • hinge block attached to the other encl of said rod adjacent the air inlet duct of the-freezing section, said block adapted upon turning of said rod to swingacross said air inlet duct for closing the same, a second rod having one end extending through the upper portion of the outer casing of the freezing section to the exterior thereof, slid- 5 in one of the walls of the freezing section for access to the interior of the freezing section.
  • a refrigerated drawer unit comprising a shell, a plurality of tracks attached to and within said shell, a plurality of drawers of substantial length, breadth and height slidable on said tracks, each drawer independently withdrawable from the exterior of said shell, said shell having cold air receiving ducts, circulating ducts leading from said cold airreceiving ducts, and a warm air exit duct leading from said'circulating ducts, a freezing section having an outer casing attached at one end to said shell and forming a part of the unit, said freezing section having means for refrig erating and blowing cold air, said freezing section having cold air exit ducts communicating With the cold air receiving ducts of the shell for supplying cold air thereto, said freezing section also having a warm air receiving duct communicating with the warm air exit duct of the shell, a rod having one end extending through the lower portion of the outer casing of the freezing section to the exterior thereof,'a hinge block attached to the other end of said rod adjacent the warm air inlet duct of the freezing section,

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Description

Oct. 22, 1940. w. McK. BAl RD REFRIGERATED DRAWER UNI [T 4 Sheets-Sheet Filed NOV. 24, 1939 Oct. 22, 1940. w. m 2,218,632
' gsmmmnsn DRAWER mm FiledNov. 24, 1939 4 Sheets-Sheet 3 H iii $072 9 Get. 22, 1940. w, McK, BMRD 2,218,632
REFRIGERATED DRAWER UNIT Filed NOV. 24, 1959 4 Sheets-Sheet 4 "9 v 7 f 12 v gag.
.25 drawn on Patented @et. 22 1%0 sraras a ate v 2,218,632 REFRIGERATED DRAWER UNET William McKinley Baird, Chicago, Ill.
2 Claims.
it understood-that the same is susceptible of.
15 modification and change without departing from the spirit of my invention. I Referring to the drawings, Fig. 1 is a front elevation of the outer face of my refrigerated drawer unit; Fig. 2 is an enlarged front view of a tier 20 of the drawers; Fig. 3 is a side elevation of the tier shown in Fig. 2; Fig. 4 is drawn on line iiof Fig. l and shows an elevational view of an end of the unit with the inlet and outlet ducts and .the circulating ducts in dotted lines; Fig. 5 is line 5--5 of Fig. 1 and shows an inside view from the end of the freezing section with the panel removed; Fig. 6 and Fig. 6a are detail views of the panel; Fig; '7 is a detail view of the panel on line l---? of Fig. 6; Fig.8 is an enlarged view 30 of the freezing section withparts broken away to show details; Fig'. 9 is a vertical sectional view of the freezing section on lines-9 of Fig. 8; Fig. 10 is a detailed view on line I --!D of'Fig. Q; Fig.
11 is an enlarged sectional view of the duct with 35 closure block and operating crank, and Fig. 12 is a detailed view of the double window shown in Fig. 9. I
The embodiment selected to illu trate my invention comprises a unit 40 metal and wood, or any other suitable materials, having suitable insulation I2, and tracks i3 attached to the shell H upon which side drawers It. At one end of the unit I!) and attached thereto by vertically extending strips I5 suitably crimped together is a freezing section IS.' The freezing section l6 has therein a compressor ill with a coil is, motor l9, fins and circulating fans 2| driven by a motor 22. I
In operation air comes into freezing section 5 i6 through duct 23 and passes upwardly.into chamber 24, through fins 20 into blowers 2i, whence it is expelled through ducts 25 into unit [0 by way of duct 26 into circulating ducts 21 to outlet duct28. The air then circulates through 55 and around the open portions of the drawers i i in having shell n of.
' therein a Application November 24, 1939, Serial No. 305,815
and finally passes into duct 23 to complete the cycle of circulation. 1
When ice has been built up around the freezing sections l6 and it is desirable to defrost the same, this may be done by turning off motors I9 and 22 5 to stop the freezing action. I then turn operating rod 29 of hingeblock 30 to swing hinge block- 30 across duct 23 to thereby close the same. By operating rod 3| linkage 32 is moved to slide sliding panels 33 to close ducts 25. Chamber 24 is 10 opened to the atmosphere by the removal of screws to permit the opening of double window 35.
A display shelf 36 is positioned behind window to hold vegetables, fruits, biologicals or the like so that the same may be viewed from the exterior 15 of the unit for display and demonstration purposes.
In Figs. 6 and 8 the window 35 is shown as in the 'end panel 38 of the freezing section it. It is within the contemplation of my invention to have 26 the window 35 on either theyfront or back faces of myfreezing section It. v
In Fig. l I have shown a unit it formed of four tiers of drawers in combination with a freezing section it, each tier having four drawers as illus- 25 trated in Fig. 2. It is of course within the spirit of my invention that my unit it may be smaller or larger and that it may be formed of one or any plurality oftiers of drawers together with a freezing section. course not limited to four drawers but may be of any desirable number of lockers. The tiers may be joinedtogether to form the unit it) by a connecting strip 3'l'as shown in Fig. 1. I may provide that the end of my freezing 85 section 66 have a pair of hinged doors fill between a double window 35. This will afford convenient access to the interior for defrosting or attention to the parts of the freezing section, as, shown in Fig. 6a.
Having thus described my invention, I claim:
1. A refrigerated drawer unit. comprising an insulated shell, a plurality of tracks attached to the inner walls of said shell, a plurality of drawers of substantial length, breadth and'height slidable on said tracks, said drawers having lmperforate front walls,said'shel1 having a plurality of spaced openings to receive said front walls, said front' walls have handles to permit any oi'said drawers to be withdrawn from the shell to allow access thereto, said drawers having open air receiving portions, a freezing section having an outer casing attached to one end of said shell and forming a part of the unit, said freezing section having chamber, a compressor, a coil, a plural- The tiers of drawers are of 30" ity of fins, a pair of blowers, a motor for actuating the compressor for refrigerating the air in the chamber, air exit ducts leading from the upper portion of the chamber, and a motor for actuating 5 said blowers for expelling cold air from the chamber outsaid exit ducts, said shell having air -inlet ducts at its" upper portion communicating with the air exit ducts of the freezing section to receive cold air blown therefrom, said shell having a plurality of circulating ducts communicating with said inlet ducts for passing the cold air in and around the open portions of the drawers for refrigerating the contents thereof, said shell having an air exit duct at its lower portion communicating with said circulating ducts for receiving the air therefrom, said freezing section having an air inlet duct at its lower portion communicating with the exit duct of the shell for receiving air therefrom and completing the cycle of air circulation, a rod having one end extending through the lower portion of the outer casing of the freezing section to the exterior thereof, a
hinge block attached to the other encl of said rod adjacent the air inlet duct of the-freezing section, said block adapted upon turning of said rod to swingacross said air inlet duct for closing the same, a second rod having one end extending through the upper portion of the outer casing of the freezing section to the exterior thereof, slid- 5 in one of the walls of the freezing section for access to the interior of the freezing section.
2. A refrigerated drawer unit comprising a shell, a plurality of tracks attached to and within said shell, a plurality of drawers of substantial length, breadth and height slidable on said tracks, each drawer independently withdrawable from the exterior of said shell, said shell having cold air receiving ducts, circulating ducts leading from said cold airreceiving ducts, and a warm air exit duct leading from said'circulating ducts, a freezing section having an outer casing attached at one end to said shell and forming a part of the unit, said freezing section having means for refrig erating and blowing cold air, said freezing section having cold air exit ducts communicating With the cold air receiving ducts of the shell for supplying cold air thereto, said freezing section also having a warm air receiving duct communicating with the warm air exit duct of the shell, a rod having one end extending through the lower portion of the outer casing of the freezing section to the exterior thereof,'a hinge block attached to the other end of said rod adjacent the warm air inlet duct of the freezing section, said block adapted upon turning of said rod to swing across said wanrn air inlet duct for closing the same, a second rod having one end extending through the upper portion of the outer casing of the freezing section to the exterior thereof, sliding panels attached through linkage to the otherend of said second rod adjacent the cold air exit ducts of the freezing section, said panels adapted upon turning of said second rod to slide across said air exit ducts for closing the same, and a window in one of the Walls of the freezing section for access to the interior of the freezing section.
WILLIAM McKINLEY BAIRD.
US305815A 1939-11-24 1939-11-24 Refrigerated drawer unit Expired - Lifetime US2218632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US305815A US2218632A (en) 1939-11-24 1939-11-24 Refrigerated drawer unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US305815A US2218632A (en) 1939-11-24 1939-11-24 Refrigerated drawer unit

Publications (1)

Publication Number Publication Date
US2218632A true US2218632A (en) 1940-10-22

Family

ID=23182468

Family Applications (1)

Application Number Title Priority Date Filing Date
US305815A Expired - Lifetime US2218632A (en) 1939-11-24 1939-11-24 Refrigerated drawer unit

Country Status (1)

Country Link
US (1) US2218632A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433100A (en) * 1944-01-27 1947-12-23 Derman Harry Tripanelled collapsible wardrobe
US2437451A (en) * 1944-04-27 1948-03-09 Baird William Mckinley Locker refrigerating system
US2448949A (en) * 1944-03-22 1948-09-07 Baird William Mckinley Drawer for refrigerated lockers
US2485509A (en) * 1943-07-06 1949-10-18 Gen Foods Corp Refrigerating apparatus
US2491145A (en) * 1946-12-09 1949-12-13 Fred P Yoars Refrigerator
US2502480A (en) * 1940-05-11 1950-04-04 Int Standard Electric Corp Refrigerator for testing instruments under conditions of cold and low pressure
US2511876A (en) * 1950-06-20 Refrigerating means with air pump
US2570250A (en) * 1948-10-20 1951-10-09 Dole Refrigerating Co Tunnel freezer
US2701746A (en) * 1950-07-21 1955-02-08 Morley W Piggott Self-service cold storage locker
FR2560365A1 (en) * 1984-02-24 1985-08-30 Chaudronnerie Froid Indl Sa Defrosting method and refrigeration enclosure enabling the implementation of the method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2511876A (en) * 1950-06-20 Refrigerating means with air pump
US2502480A (en) * 1940-05-11 1950-04-04 Int Standard Electric Corp Refrigerator for testing instruments under conditions of cold and low pressure
US2485509A (en) * 1943-07-06 1949-10-18 Gen Foods Corp Refrigerating apparatus
US2433100A (en) * 1944-01-27 1947-12-23 Derman Harry Tripanelled collapsible wardrobe
US2448949A (en) * 1944-03-22 1948-09-07 Baird William Mckinley Drawer for refrigerated lockers
US2437451A (en) * 1944-04-27 1948-03-09 Baird William Mckinley Locker refrigerating system
US2491145A (en) * 1946-12-09 1949-12-13 Fred P Yoars Refrigerator
US2570250A (en) * 1948-10-20 1951-10-09 Dole Refrigerating Co Tunnel freezer
US2701746A (en) * 1950-07-21 1955-02-08 Morley W Piggott Self-service cold storage locker
FR2560365A1 (en) * 1984-02-24 1985-08-30 Chaudronnerie Froid Indl Sa Defrosting method and refrigeration enclosure enabling the implementation of the method

Similar Documents

Publication Publication Date Title
US2382084A (en) Quick freezing apparatus
US2130617A (en) Refrigerator
US3364694A (en) Refrigerator apparatus
US4165620A (en) Self-service cooling cabinet
US2893805A (en) Drawer-type refrigerator device
US4840040A (en) Island type refrigeration display cabinet
US2381598A (en) Refrigerator cabinet construction
US2218632A (en) Refrigerated drawer unit
US3307373A (en) Transparent refrigerator door control
US3079770A (en) Air flow through refrigerator cabinet machine compartment
US1922456A (en) Refrigerator
US2145892A (en) Refrigerator
SE7709006L (en) FROM ACCESSIBLE FREEZER WITH AIR DEFROST
US2907186A (en) Air circulation means for upright refrigerated cabinets
US3204421A (en) Cooler for perishable material
US3243972A (en) Refrigerator cabinet
US2739455A (en) Apparatus for chilling and dispensing beer glasses
US2181636A (en) Refrigeration apparatus
US2570250A (en) Tunnel freezer
US2581618A (en) Refrigerator cabinet
US1589064A (en) Refrigerating cabinet
US1723460A (en) Refrigeration
US3139737A (en) Refrigerated display and storage fixture
US2593370A (en) Combination dairy, vegetable, and storage refrigerator
US2708349A (en) Frozen food cabinet