Patent US4805776A successfully refreshed from Google Patents.
US4805776A
Expired / Lapsed
US
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Air case
Assignee: Quality Cases Ltd
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Filing: 1987-10-21
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Granted: 1989-02-21
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Expires: 2007-10-21
Abstract
Abstract An air case has a plurality of wall portions defining an enclosed internal region of the case in a closed condition thereof, each wall portion having a first layer of a rigid material having surface regions spaced apart by internal webs or ribs and a second layer of a shock absorbing resilient material, the layers being bonded together in a substantially unitary structure.
Inventors
- 👤 Champa Namgyal
- 👤 Robert Weinreb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:31
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/022; A; A45; A45C; A45C13/00; A45C13/36; A45C3/00; A45C5/00; A45C5/02; Y; Y10; Y10S; Y10S220/00; Y10S220/902
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
106 words
An air case for accommodating equipment during shipment of said equipment, which comprises a plurality of rigid, shock-absorbing wall portions defining an enclosed internal region of said air case in a closed condition thereof, each wall portion having a first layer of a rigid material comprising honeycomb or corrugated plastic having surface regions spaced apart by internal webs or ribs and a second layer of shock-absorbing resilient material, said layers being bonded together in a substantially unitary structure and said rigid, shock-absorbing wall portions being operable to protect equipment from damage during shipment of said air case having said equipment stored in said internal region thereof.
Claim 2
Dependent Claim
106 words
An air case for accommodating equipment during shipment of said equipment, which comprises a plurality of rigid, shock-absorbing wall portions defining an enclosed internal region of said air case in a closed condition thereof, each wall portion having a first layer of a rigid material comprising honeycomb or corrugated plastic having surface regions spaced apart by internal webs or ribs and a second layer of shock-absorbing resilient material, said layers being bonded together in a substantially unitary structure and said rigid, shock-absorbing wall portions being operable to protect equipment from damage during shipment of said air case having said equipment stored in said internal region thereof.
Claim 3
Dependent Claim
25 words
The air case according to claim 1, wherein said surface regions of said first layer are substantially parallel and are separated by internal air spaces.
Claim 4
Dependent Claim
14 words
The air case according to claim 2, wherein said first layer is corrugated plastic.
Claim 5
Dependent Claim
14 words
The air case according to claim 3, wherein said first layer is corrugated polyethylene.
Claim 6
Dependent Claim
15 words
The air case according to claim 1, wherein said second layer is dense cross-linked foam.
Claim 7
Dependent Claim
15 words
The air case according to claim 5, wherein said foam is cross-linked polyethylene rubber foam.
Claim 8
Dependent Claim
16 words
The air case according to claim 1, wherein said second layer is an open cell foam.
Claim 9
Dependent Claim
28 words
The air case according to claim 1, wherein said first layer is an outer layer and said second layer is an inner layer of each said wall portion.
Claim 10
Dependent Claim
18 words
The air case according to claim 8, wherein the exterior of said wall portions is covered by cloth.
Claim 11
Dependent Claim
21 words
The air case according to claim 1, wherein a cloth lining is provided on the inner layers of said wall portions.
Claim 12
Dependent Claim
56 words
The air case according to claim 1, having six said wall portions, five of which are connected together to form a bottom wall portion and four side wall portions, thereby defining an open-ended enclosure, and the sixth wall portion is hingedly connected to one of the side wall portions for opening and closing the air case.
Claim 13
Dependent Claim
36 words
The air case according to claim 11, wherein the end faces of the four side walls terminate at the opening of the air case in free ends, and a substantially rigid gasket seals said free ends.
Claim 14
Dependent Claim
46 words
The air case according to claim 12, wherein said gasket is an inverted U-shaped channel section, each limb of said gasket lapping over the faces of said side wall portions and the web of said gasket lying against the free ends of said side wall portions.
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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) | 1992-02-21 | 1992-08-22 | 1993-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-21 | 1996-08-22 | 1997-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-21 | 2000-08-22 | 2001-02-21 | $7700.00 | Window Closed / Lapsed |