Patent US4420027A successfully refreshed from Google Patents.
US4420027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent access curtain for coolers and the like
Assignee: BSL CORP
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Filing: 1983-05-18
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Granted: 1983-12-13
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Expires: 2003-05-18
Abstract
Abstract A transparent, flexible curtain with spaced access slits is provided for installation across the opening of display type, open front and open top coolers, freezers and the like of the sort used in retail food stores. The curtain is comprised of a rectangular sheet of flexible, transparent material detachably secured at one end to the top or rear edge of the cooler cabinet and extending across the cabinet opening. The upper and lower margins are reinforced by a flexible laminated scrim for improved wear at the stress points. The curtain is formed with plurality of spaced parallel slits, all extending in the same direction and all originating and terminating within the margins of the sheet with the exception of a slit along a fold line extending through the lower edge of the curtain. The curtain retains cold air within the refrigerator and allows the food products to be clearly visible to the customer. Goods are removed by the customer reaching through any slit near the product selected. The forward or lower edge of the curtain is weighted in sections to keep the curtain taut across the opening and to allow it to be folded back for loading food into the cooler.
Inventors
- 👤 Kenneth N. Gidge
- 👤 Henry J. Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:53
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/04; A47F3/0439; A47F3/0469
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
208 words
An access curtain for use over the opening in an open display type refrigerator, or the like, comprising (a) a sheet of flexible, transparent material of generally rectangular outline, (b) a pair of strips of flexible, tear-resistant reinforcing material, one strip being joined to an upper portion of said sheet and the other strip being joined to a lower portion of said sheet, (c) means carried by at least a portion of the upper of said strips and/or by at least a portion of the refrigerator for connecting the upper of said strips to said refrigerator proximate to the upper edge of said opening, said sheet together with said strips defining a curtain of a length sufficient to span said opening and overhang the lower edge of said opening, (d) said curtain being formed with a plurality of spaced parallel vertical slits disposed entirely within the outer edges of said curtain, said slits extending through said sheet and terminating at respective ends within said upper and lower strips, (e) said slits forming a plurality of substantially coplanar, parallel and integral strip sections arranged in substantially abutting edge to edge relation, and, (f) means carried by the curtain at the lower edge thereof for applying tension to said curtain.
Claim 2
Dependent Claim
208 words
An access curtain for use over the opening in an open display type refrigerator, or the like, comprising (a) a sheet of flexible, transparent material of generally rectangular outline, (b) a pair of strips of flexible, tear-resistant reinforcing material, one strip being joined to an upper portion of said sheet and the other strip being joined to a lower portion of said sheet, (c) means carried by at least a portion of the upper of said strips and/or by at least a portion of the refrigerator for connecting the upper of said strips to said refrigerator proximate to the upper edge of said opening, said sheet together with said strips defining a curtain of a length sufficient to span said opening and overhang the lower edge of said opening, (d) said curtain being formed with a plurality of spaced parallel vertical slits disposed entirely within the outer edges of said curtain, said slits extending through said sheet and terminating at respective ends within said upper and lower strips, (e) said slits forming a plurality of substantially coplanar, parallel and integral strip sections arranged in substantially abutting edge to edge relation, and, (f) means carried by the curtain at the lower edge thereof for applying tension to said curtain.
Claim 3
Dependent Claim
15 words
An access curtain according to claim 1 wherein said slits are all of equal length.
Claim 4
Dependent Claim
22 words
An access curtain according to claim 1 wherein said strips are formed with a circular opening at the ends of said slits.
Claim 5
Dependent Claim
15 words
An access curtain according to claim 1 wherein said means for applying tension include weights.
Claim 6
Dependent Claim
61 words
An access curtain according to claim 1 and further including cooperating detachable fastening means disposed at both upper adjacent corners on the outer face of said curtain whereby said curtain may be partially separated from said refrigerator at either upper corner and folded back against itself from either upper corner and the upper adjacent corners held together by said fastening means.
Claim 7
Dependent Claim
23 words
An access curtain according to claim 5 wherein said tension-applying means includes a plurality of separated weight elements permitting folding of said curtain.
Claim 8
Dependent Claim
32 words
An access curtain according to claim 5 wherein said curtain is formed with a slit extending from within said upper strip through said lower strip along a fold line of said curtain.
Claim 9
Dependent Claim
22 words
An access curtain according to claim 1 wherein the connecting means comprise detachable fastening means connecting said upper strip to said refrigerator.
Claim 10
Dependent Claim
68 words
An access curtain according to claim 8 wherein said connecting means include a strip of felt material carried on any one of the curtain or the refrigerator and a strip of flexible hooked material carried on the other of the curtain or the refrigerator, the strip of felt material and the strip of hooked material being mutually attachable and detachable to detachably connect the curtain to the refrigerator.
Claim 11
Dependent Claim
38 words
An access curtain according to claim 4 wherein said weights include at least one elongated metal member, said lower strip being formed with a sleeve along the lower margin thereof, said metal member being mounted in said sleeve.
Claim 12
Dependent Claim
24 words
An access curtain according to claim 1 wherein said sheet and said strip are thermoplastic and are heat-sealed together into a unitary integral structure.
Claim 13
Dependent Claim
34 words
An access curtain according to claim 1 wherein said strips are comprised of a lamination of a woven scrim and at least one ply of transparent thermoplastic sheet material forming a unitary integral structure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-12 | 1987-06-13 | 1987-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-12 | 1991-06-13 | 1991-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-12 | 1995-06-13 | 1995-12-13 | $7700.00 | Window Closed / Lapsed |