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US3724712A Expired / Lapsed US ⏱️ 0.0 years remaining

Container for bulk shipment of corrosive liquids or the like

Assignee: Container Corp
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Filing: 1971-02-19
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Granted: 1973-04-03
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Expires: 1991-02-19
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Abstract

Abstract A container for bulk shipment is comprised of an outer rigid shell with an inner flexible hollow container liner resistant to most corrosive liquids. The liner is composed of a plastomer such as low density polyethylene or other thermoplastic having the property of cold flow when loaded, as well as compressibility under loads. The liner is provided with a filler neck and closure, and when empty it somewhat loosely fills the shell. As the liner is loaded it conforms to the inside of the shell both by elastic and plastic deformation. The top of the shell is provided with a plurality of apertures having a plurality of fastening elements extending therethrough in fastening engagement with a locking member disposed atop a shell closure resting on the loaded elastomer liner. The locking member has apertures aligned with the apertures in the shell, and the fastening members extend through both sets of apertures. One set of such apertures is elongated to provide for movement of the shell closure with the liner before the fastening means is secured. The shell closure is provided with structure for securing the same to the filler neck of the container liner, so that the liner and the shell closure may move together within the outer shell as the container liner is filled. After filling, the shell closure is secured to the locking member by the fastening elements to make a rigid structure with the filled liner secured in place.

Inventors

  • 👤 A Starr
  • 👤 G Spence

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 10:37
CPC Classifications
B; B65; B65D; B65D77/00; B65D77/04; B65D77/06; Y; Y10; Y10S; Y10S220/00; Y10S220/917

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 256 words
A container for the bulk shipment of liquIds comprising: a. a rigid shell; b. means closing one end of said shell; c. hollow liner made of plastomeric material capable of simultaneous plastic and elastic deformation having side walls and upper and lower closure members of like material and conforming generally in dimension to the inner dimension of said rigid shell; d. a filler neck in the upper closure member of said liner; e. an upper closure for said rigid shell and a locking member in sliding engagement with the upper interior portions of said metallic shell; i. said upper closure resting upon said upper closure member of said liner; ii. said upper closure having an opening therein for the extension therethrough of said filler neck including means for securing said upper closure to said filler neck at said opening; f means adjustably securing said upper closure to said shell responsible to plastic and elastic deformation of said liner in conforming to the inner dimensions of said metallic shell when said liner is filled while in said shell comprising: i. a group of spaced apertures disposed at the upper end of said shell and cooperating with a group of aligned apertures in said locking member; ii. one of said group of apertures being elongated to accommodate movement of said upper closure in the filling of said hollow liner while disposed within said shell; iii. fastening means extending through said apertures and holding said upper closure in position to said shell following the filling of said hollow liner.
Claim 2
Dependent Claim 256 words
A container for the bulk shipment of liquIds comprising: a. a rigid shell; b. means closing one end of said shell; c. hollow liner made of plastomeric material capable of simultaneous plastic and elastic deformation having side walls and upper and lower closure members of like material and conforming generally in dimension to the inner dimension of said rigid shell; d. a filler neck in the upper closure member of said liner; e. an upper closure for said rigid shell and a locking member in sliding engagement with the upper interior portions of said metallic shell; i. said upper closure resting upon said upper closure member of said liner; ii. said upper closure having an opening therein for the extension therethrough of said filler neck including means for securing said upper closure to said filler neck at said opening; f means adjustably securing said upper closure to said shell responsible to plastic and elastic deformation of said liner in conforming to the inner dimensions of said metallic shell when said liner is filled while in said shell comprising: i. a group of spaced apertures disposed at the upper end of said shell and cooperating with a group of aligned apertures in said locking member; ii. one of said group of apertures being elongated to accommodate movement of said upper closure in the filling of said hollow liner while disposed within said shell; iii. fastening means extending through said apertures and holding said upper closure in position to said shell following the filling of said hollow liner.
Claim 3
Dependent Claim 19 words
A container according to claim 1 wherein said locking member is integral with said upper closure for said shell.
Claim 4
Dependent Claim 22 words
A container according to claim 1 with said locking member is in the form of a flange integral with said upper closure.

References Cited (Backward Citations)

US698755A Cited
US2721674A Cited
US3262628A Cited
US3348728A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-02 1976-10-02 1977-04-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-02 1980-10-02 1981-04-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-02 1984-10-02 1985-04-03 $7700.00 Window Closed / Lapsed

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