Claims
- 1. A railless refrigerator display door comprising:
- an outside glass panel and an inside glass panel;
- a hollow spacer disposed between said glass panels, said spacer extending peripherally adjacent peripheral edges of said panels;
- elongated structures disposed between said glass panels, said elongated structures extending peripherally adjacent said peripheral edges of said panels and peripherally about an outer periphery of said spacer;
- a door frame extending peripherally about said elongated structures; and
- sealant disposed between said panels, said sealant holding together said panels, said spacer, said elongated structures, and said door frame, said door frame having elongated extensions extending inwardly into said sealant adjacent said elongate structures.
- 2. The display door of claim 1 wherein said structures have bumper means attached thereto for reducing heat cold transfer between said panels.
- 3. The display door of claim 1 wherein said door frame engages said peripheral edges of said panels and covers a peripheral inside surface of said inside panel.
- 4. The display door of claim 1 wherein said hollow spacer is filled with a desiccant.
- 5. The display door of claim 1 further comprising rubber insulators disposed between said spacer and said panels.
- 6. The display door of claim 1 wherein said sealant is a thermal setting sealant.
- 7. The display door of claim 1 wherein said bumper means are made out of rubber.
- 8. A refrigerator display door comprising:
- an outside glass panel, a middle glass panel and an inside glass panel;
- a spacer disposed between said outside and middle glass panels;
- a spacer disposed between said middle and inside glass panels;
- elongated structures disposed between said inside and outside panels and extending peripherally adjacent peripheral edges of said inside and outside panels and peripherally about outside peripheries of said spacers;
- a door frame extending peripherally about said elongated structures; and
- sealant disposed between said inside and outside panels, said sealant holding together said spacers, said elongated structures, said inside, middle and outside panels, and said door frame, said door frame having elongated extensions extending inwardly into said sealant adjacent said elongated structures.
- 9. The display door of claim 8 wherein said door frame engages said peripheral edges of said inside and outside panels and covers a peripheral inside surface of said inside panel.
- 10. The display door of claim 8 wherein said hollow spacers are filled with a desiccant.
- 11. The display door of claim 8 further comprising rubber insulators disposed between said spacers and said panels.
- 12. The display door of claim 8 wherein said sealant is a thermal setting sealant.
- 13. The display door of claim 8 further comprising bumper means attached to said structures for reducing cold transfer between said inside and outside panels.
- 14. A refrigerator display door comprising:
- an outside glass panel and an inside glass panel;
- a spacer disposed between said glass panels, said spacer extending peripherally adjacent peripheral edges of said panels;
- elongated structures disposed between said glass panels;
- bumpers attached to each of said structures in order to reduce heat transfer between said inside and outside panels;
- a door frame extending peripherally about said elongated structures; and
- sealant disposed between said panels, said sealant holding together said panels, spacer, elongated structures, and door frame, said door frame having elongated extensions extending inwardly into said sealant adjacent said elongated structures.
- 15. The display door of claim 14 wherein said door frame engages said peripheral edges of said panels and covers a peripheral inside surface of said inside panel.
- 16. The display door of claim 14 wherein said hollow spacer is filled with a desiccant.
- 17. The display door of claim 14 further comprising rubber insulators disposed between said spacer and said panels.
- 18. The display door of claim 14 wherein said sealant is a thermal setting sealant.
- 19. The display door of claim 14 further comprising flexible extension means for cushioning said door frame against said panels.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application, Ser. No. 07/585,602, filed Sep. 20, 1990, and entitled "Glass Refrigerator Door Structure."
The present invention relates generally to refrigerator doors, and more particularly to a railless refrigerator display door constructed with two or more glass panels and having a peripheral door frame extending around the sides of the door and at the inside of the door without covering the outside glass surface of the door.
Present commercial glass refrigerator doors typically have door frames which extend peripherally around the glass panels of the doors. Such door frames are used to hold the glass panels in place and extend peripherally around both the inside and outside glass surfaces of the doors. As a result, the door frames can be seen from the outside of the doors, distracting from the appearance of the glass doors. Such door frames are disclosed, for example, in U.S. Pat. Nos. 4,696,078, issued to Stromquist on Sep. 29, 1987; 4,671,582, issued to Stromquist, et al. on Jun. 9, 1987; 4,223,482, issued to Barroero, et al. on Sep. 23, 1980; 3,339,225, issued to Booth on Sep. 5 1967; and 3,331,159, issued to Cooke, et al. on Jul. 18, 1967.
It is an object of this invention to provide a railless refrigerator display door having a peripheral door frame that does not cover the outside glass surface of the door, presenting a more attractive and desirable refrigerator door.
It is another object of this invention to provide a railless refrigerator display door that is simple in design and inexpensive to manufacture.
It is still another object of this invention to provide a railless refrigerator display door which may be constructed with two or more glass panels.
It is still another object of this invention to provide a railless refrigerator display door which does not require mechanical fasteners such as nuts, bolts or screws to hold the structure together.
These and other objects and advantages are attained by a railless refrigerator display door constructed with two or more glass panels. The refrigerator door has a peripheral door frame extending around the sides of the door and at the inside of the door without covering the outside glass surface of the door. Sealant is used to bond the glass panels to peripheral spacers separating the panels and to C-section structures which extend peripherally around the sides of the door. The door frame is also bonded to the C-section structures and glass panels by the sealant. Rubber bumpers attached to the C-section structures reduce heat transfer from the inside glass panel to the outside glass panel. As such, mechanical fasteners such as nuts, bolts or screws are not needed for the purpose of holding the refrigerator door together.
The various features of the present invention will be best understood together with further objects and advantages by reference to the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
US Referenced Citations (97)
Foreign Referenced Citations (46)
Number |
Date |
Country |
0018468 |
Nov 1980 |
EPX |
0019020 |
Nov 1980 |
EPX |
0041840 |
Dec 1981 |
EPX |
0082164 |
Jun 1983 |
EPX |
0108677 |
May 1984 |
EPX |
0124397 |
Nov 1984 |
EPX |
0124749 |
Nov 1984 |
EPX |
0162344 |
Nov 1984 |
EPX |
0138782 |
Apr 1985 |
EPX |
0163166 |
Dec 1985 |
EPX |
0168672 |
Jan 1986 |
EPX |
0176091 |
Apr 1986 |
EPX |
0213970 |
Mar 1987 |
EPX |
0231676 |
Aug 1987 |
EPX |
0249299 |
Dec 1987 |
EPX |
0264002 |
Apr 1988 |
EPX |
0264052 |
Apr 1988 |
EPX |
0269470 |
Jun 1988 |
EPX |
0288060 |
Oct 1988 |
EPX |
0303330 |
Feb 1989 |
EPX |
0313892 |
May 1989 |
EPX |
0319695 |
Jun 1989 |
EPX |
0351573 |
Jan 1990 |
EPX |
0387204 |
Sep 1990 |
EPX |
0388550 |
Sep 1990 |
EPX |
0418461 |
Mar 1991 |
EPX |
0432872 |
Jul 1991 |
EPX |
2840656 |
Mar 1980 |
DEX |
3543524 |
Jun 1987 |
DEX |
1032616 |
Jun 1979 |
ITX |
1084120 |
May 1985 |
ITX |
1091235 |
Jul 1985 |
ITX |
1165175 |
Apr 1987 |
ITX |
1208888 |
Jul 1989 |
ITX |
1216012 |
Feb 1990 |
ITX |
WO8400191 |
Jan 1984 |
WOX |
WO8807617 |
Oct 1988 |
WOX |
7604769 |
Mar 1977 |
SEX |
0503878 |
Feb 1971 |
CHX |
1301651 |
Jan 1973 |
GBX |
1398434 |
Jun 1975 |
GBX |
1482372 |
Aug 1977 |
GBX |
2023209 |
Dec 1979 |
GBX |
1579838 |
Nov 1980 |
GBX |
2075435 |
Nov 1981 |
GBX |
1581946 |
Dec 1990 |
GBX |
Non-Patent Literature Citations (1)
Entry |
"Structural Spacer Glazing", by C. Gregory Carney, Glass Magazine, Mar. 1988, pp. 173-175. |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
585602 |
Sep 1990 |
|