US4182475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum closure assembly
Assignee: ROCK-TENN COMPANY A CORP OF
•
Filing: 1979-01-19
•
Granted: 1980-01-08
•
Expires: 1999-01-19
Abstract
Abstract A drum closure assembly which includes a ring member and a cover member, the cover member being cooperatively sized for insertion into the ring member. The ring member comprises outer and inner ring portions which are angularly displaced from parallel to one another. The cover member includes a top cover member and an annular wall member designed to abut the inner ring portion of the ring member and to seal the assembly when in use.
Inventors
- 👤 Donald F. Freund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:48
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/0209; B65D21/0217; B65D21/0222; B65D15/00; B65D15/02; B65D15/04; B65D15/08; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/021; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/00074; B65D2543/00092; B65D2543/00259; B65D2543/00296; B65D2543/00435; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00518; B65D2543/00537; B65D2543/00546; B65D2543/00574; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00629; B65D2543/00675; B65D2543/00685; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00796
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
173 words
A drum closure assembly comprising: (A) a ring member, said ring member including: (i) an outer ring portion; (ii) an inner ring portion laterally displaced from said outer ring portion, said inner ring portion being angularly displaced from parallel to said outer ring portion; (iii) a connecting portion fixedly joining said inner ring portion to said outer ring portion; (iv) an elongated groove being defined by said inner ring portion, said outer ring portion and said connecting portion, said groove being receptive to the uppermost edge of a drum, and (B) a cover member, said cover member being cooperatively sized for insertion into said ring member, said cover member including: (i) a top cover member; (ii) a continuous annular wall member projecting downwardly from said top cover member, the circumference of the bottommost edge of said annular wall member being smaller than the circumference of said top cover member, the outer surface of said annular wall member being angularly displaced from a line perpendicular to a plane defined by said top cover member.
Claim 2
Dependent Claim
173 words
A drum closure assembly comprising: (A) a ring member, said ring member including: (i) an outer ring portion; (ii) an inner ring portion laterally displaced from said outer ring portion, said inner ring portion being angularly displaced from parallel to said outer ring portion; (iii) a connecting portion fixedly joining said inner ring portion to said outer ring portion; (iv) an elongated groove being defined by said inner ring portion, said outer ring portion and said connecting portion, said groove being receptive to the uppermost edge of a drum, and (B) a cover member, said cover member being cooperatively sized for insertion into said ring member, said cover member including: (i) a top cover member; (ii) a continuous annular wall member projecting downwardly from said top cover member, the circumference of the bottommost edge of said annular wall member being smaller than the circumference of said top cover member, the outer surface of said annular wall member being angularly displaced from a line perpendicular to a plane defined by said top cover member.
Claim 3
Dependent Claim
56 words
The drum closure assembly of claim 1 wherein said annular wall member is continuous and wherein from about 2 to about 10 locking tabs extend peripherally from said annular wall member, said locking tabs being fixedly engageable by the bottommost edge of said inner ring portion wherein said cover member is inserted into said ring member.
Claim 4
Dependent Claim
18 words
The drum closure assembly of claim 1 wherein a protective lip extends peripherally from said top cover member.
Claim 5
Dependent Claim
23 words
The drum closure assembly of claim 1 wherein said ring member and said cover member are formed from a resiliently, flexible plastic material.
Claim 6
Dependent Claim
15 words
The drum closure assembly of claim 1 wherein said ring member further includes nesting means.
Claim 7
Dependent Claim
38 words
The drum closure assembly of claim 5 wherein said nesting means comprises a groove in the uppermost surface of said connecting portion, said groove being receptive to cooperating nesting means found at the bottom of an assembled drum.
Claim 8
Dependent Claim
39 words
The drum closure assembly of claim 1 wherein said annular wall and said inner ring member are equally angularly displaced from said line perpendicular to a plane defined by said top cover member and said outer ring portion, respectively.
Claim 9
Dependent Claim
20 words
The drum closure assembly of claim 7 wherein said angular displacement is from about 2 degrees to about 25 degrees.
Claim 10
Dependent Claim
256 words
A drum closure assembly comprising: (A) a ring member made from resiliently, flexible plastic material, said ring member including: (i) an outer ring portion; (ii) an inner ring portion laterally displaced from said inner ring, said inner ring portion being from about 5 degrees to about 25 degrees angularly displaced from parallel to said outer ring portion; (iii) a connecting portion fixedly joining said inner ring portion to said outer ring portion; (iv) an elongated groove being defined by said inner ring portion, said outer ring portion and said convecting portion, said groove being receptive to the uppermost edge of a drum, and (v) nesting means located in the uppermost surface of said connecting portion; and (B) a cover member, said cover member being cooperatively sized for lockable insertion into said ring member, said cover member including: (i) a top cover member having an annular protective lip extending therefrom, (ii) an annular wall member projecting downwardly from said top cover member, the circumference of the bottommost edge of said annular wall member being smaller than the circumference of said top cover member, the outer surface of said annular wall member being from about 2 degrees to about 25 degrees angularly displaced from a line perpendicular to a plane defined by said top cover member, and (iii) from about 2 to about 10 locking tabs extending peripherally from said annular wall member, said locking tabs being fixedly engageable by the bottommost edge of said inner ring portion when said cover member is inserted into said ring member.
Claim 11
Dependent Claim
256 words
A drum closure assembly comprising: (A) a ring member made from resiliently, flexible plastic material, said ring member including: (i) an outer ring portion; (ii) an inner ring portion laterally displaced from said inner ring, said inner ring portion being from about 5 degrees to about 25 degrees angularly displaced from parallel to said outer ring portion; (iii) a connecting portion fixedly joining said inner ring portion to said outer ring portion; (iv) an elongated groove being defined by said inner ring portion, said outer ring portion and said convecting portion, said groove being receptive to the uppermost edge of a drum, and (v) nesting means located in the uppermost surface of said connecting portion; and (B) a cover member, said cover member being cooperatively sized for lockable insertion into said ring member, said cover member including: (i) a top cover member having an annular protective lip extending therefrom, (ii) an annular wall member projecting downwardly from said top cover member, the circumference of the bottommost edge of said annular wall member being smaller than the circumference of said top cover member, the outer surface of said annular wall member being from about 2 degrees to about 25 degrees angularly displaced from a line perpendicular to a plane defined by said top cover member, and (iii) from about 2 to about 10 locking tabs extending peripherally from said annular wall member, said locking tabs being fixedly engageable by the bottommost edge of said inner ring portion when said cover member is inserted into said ring member.
Claim 12
Dependent Claim
38 words
The drum closure assembly of claim 9 wherein said nesting means comprises a groove in the uppermost surface of said connecting portion, said groove being receptive to cooperating nesting means found at the bottom of an assembled drum.
Claim 13
Dependent Claim
39 words
The drum closure assembly of claim 9 wherein said annular wall and said inner ring member are equally angularly displaced from said line perpendicular to a plane defined by said top cover member and said outer ring portion, respectively.
References Cited (Backward Citations)
US801382A
Cited
US1160611A
Cited
US1454846A
Cited
US1456424A
Cited
US2706065A
Cited
US3039371A
Cited
US3332572A
Cited
US3297193A
Cited
CA858334A
Cited
US3912110A
Cited
US3945529A
Cited
US4008820A
Cited
US4037748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |