US4090604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover construction
Assignee: VARIED INVESTMENTS Inc
•
Filing: 1976-09-13
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Granted: 1978-05-23
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Expires: 1996-09-13
Abstract
Abstract A cover for material handling equipment including a lower and upper cover plate disposed in overlapping relationship and having means thereon adapted to engage a flange element on the material handling equipment so as to form a seal.
Inventors
- 👤 Charles W. Reifert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:45
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/54
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
100 words
A cover for material handling equipment having flange elements thereon, said cover means including a lower cover plate of sufficient size to extend at least to said flange elements and having on one side only downwardly and inwardly projecting means for positioning under a flange element on material handling equipment, an upper cover plate overlapping at least a portion of said lower cover plate in superimposed position and having on one side thereof a downwardly and inwardly projecting means for positioning under a flange element on material handling equipment and on the distal side thereof a downwardly extending flange portion.
Claim 2
Dependent Claim
100 words
A cover for material handling equipment having flange elements thereon, said cover means including a lower cover plate of sufficient size to extend at least to said flange elements and having on one side only downwardly and inwardly projecting means for positioning under a flange element on material handling equipment, an upper cover plate overlapping at least a portion of said lower cover plate in superimposed position and having on one side thereof a downwardly and inwardly projecting means for positioning under a flange element on material handling equipment and on the distal side thereof a downwardly extending flange portion.
Claim 3
Dependent Claim
28 words
A cover for material handling equipment in accordance with claim 1 including means attached to said upper cover plate for locking said plate to the material handling equipment.
Claim 4
Dependent Claim
16 words
A cover in accordance with claim 2 wherein said locking means is a rotatable locking member.
References Cited (Backward Citations)
US2656036A
Cited
US3878936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |