US4996760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of installing a flexible liner within the shell of a bulk material container
Assignee: Fabricated Metals Inc
•
Filing: 1990-02-08
•
Granted: 1991-03-05
•
Expires: 2010-02-08
Abstract
Abstract A bulk material container comprising a flexible liner with a bottom outlet fitting. The bottom outlet fitting of the flexible liner is inserted by means of an installing tool into a bottom opening of the shell of the container. The bottom outlet fitting has a substantially square internal pocket shape that is adapted for receiving fingers of the insertion tool for installation in the shell.
Inventors
- 👤 Clarence B. Coleman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:02
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/02; B67D7/0277; B65; B65D; B65D77/00; B65D77/04; B65D77/06; B65D77/061; B65D77/062; B65D77/068; B31; B31B; B31B2105/00; B31B2120/00; B31B2120/40; B31B2120/402; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49877; Y10T29/49947; Y10T29/49963; Y10T29/49964
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A method of installing a flexible liner with a bottom outlet fitting, an open upper end and an open lower end in a shell of a bulk material container having a discharge outlet fitting at the bottom thereof, said method comprising the steps of: (a) disposing the flexible liner on an installing tool; (b) moving the installing tool, with the flexible liner disposed thereon, into the discharge outlet fitting at the bottom of said shell; (c) securing the bottom outlet fitting of said flexible liner to the discharge outlet fitting at the bottom of said shell; and (d) removing the installing tool from said shell while said flexible liner and said bottom outlet fitting remain in the installed positions.
Claim 2
Independent Claim
119 words
A method of installing a flexible liner with a bottom outlet fitting, an open upper end and an open lower end in a shell of a bulk material container having a discharge outlet fitting at the bottom thereof, said method comprising the steps of: (a) disposing the flexible liner on an installing tool; (b) moving the installing tool, with the flexible liner disposed thereon, into the discharge outlet fitting at the bottom of said shell; (c) securing the bottom outlet fitting of said flexible liner to the discharge outlet fitting at the bottom of said shell; and (d) removing the installing tool from said shell while said flexible liner and said bottom outlet fitting remain in the installed positions.
Claim 3
Dependent Claim
72 words
A method of installing a flexible liner into a shell of a bulk material container as claimed in claim 1 wherein the step of disposing the flexible liner on the installing tool includes inserting the installing tool into the open upper end of the flexible liner, and moving the installing tool into the flexible liner until the installing tool engages the outlet fitting at the open lower end of the flexible liner.
Claim 4
Dependent Claim
89 words
A method of installing a flexible liner into a shell of a bulk material container as claimed in claim 1 wherein the tool has fingers at the distal end thereof and wherein the step of disposing the flexible liner on the installing tool includes inserting the fingers of the installing tool into the open upper end of the flexible liner, and moving the installing tool into the flexible liner until the fingers of the installing tool engage the outlet fitting at the open lower end of the flexible liner.
References Cited (Backward Citations)
US2074959A
Cited
US2924434A
Cited
CH365965A
Cited
CH406758A
Cited
FR1324104A
Cited
US3235138A
Cited
GB1135772A
Cited
US3372725A
Cited
US3590888A
Cited
US3531142A
Cited
US4008621A
Cited
US4167235A
Cited
US4165024A
Cited
US4256150A
Cited
US4375864A
Cited
US4428507A
Cited
GB2135287A
Cited
EP0117619A1
Cited
US4586628A
Cited
US4537329A
Cited
US4658989A
Cited
US4785974A
Cited
US4706850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-03-04 | 1994-09-03 | 1995-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-03-04 | 1998-09-03 | 1999-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-03-04 | 2002-09-03 | 2003-03-05 | $7700.00 | Window Closed / Lapsed |