Patent US3696952A successfully refreshed from Google Patents.
US3696952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulk cargo handling system and method
Assignee: POWERTEX Inc A CORP OF VT
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Filing: 1970-10-26
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Granted: 1972-10-10
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Expires: 1990-10-26
Abstract
Abstract A system for transporting bulk cargo within conventional freight containers which includes a disposable container liner adapted to be positioned within a container or truck. The liner includes a flexible bag member having the open end or ends closed by bulkheads. Openings, which are normally sealed during transport of the container, are provided in the rear bulkheads for facilitating loading and unloading of the liner.
Inventors
- 👤 Bert A Bodenheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:27
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/02; B65D90/04; B65D90/046; B65D90/047; B65D2590/00; B65D2590/02; B65D2590/04; B65D2590/043; B65D2590/046
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
116 words
Apparatus for transporting bulk cargo comprising a container having wall means defining a door opening and door means secured to said wall means, liner means positioned within said container for receiving the bulk cargo, including a flexible, hollow bag having at least one open end and means for closing said open end, means for releasably positioning said liner between said container wall means for maintaining said liner in an opened condition therein during loading and unloading of said liner means, and displaceable means for supporting said container and said liner means during unloading of the bulk cargo therefrom, said closure means comprising a flexible, lightweight, bulkhead for transmitting the cargo load directly to said supporting means.
Claim 2
Dependent Claim
116 words
Apparatus for transporting bulk cargo comprising a container having wall means defining a door opening and door means secured to said wall means, liner means positioned within said container for receiving the bulk cargo, including a flexible, hollow bag having at least one open end and means for closing said open end, means for releasably positioning said liner between said container wall means for maintaining said liner in an opened condition therein during loading and unloading of said liner means, and displaceable means for supporting said container and said liner means during unloading of the bulk cargo therefrom, said closure means comprising a flexible, lightweight, bulkhead for transmitting the cargo load directly to said supporting means.
Claim 3
Dependent Claim
38 words
Apparatus for transporting bulk cargo as defined in claim 1, wherein said supporting means includes a tiltable loading platform having a structure for abutting said flexible bulkhead for receiving forces applied to said bulkhead by said bulk cargo.
Claim 4
Independent Claim
162 words
The method of transporting bulk cargo within a container having side walls, an end wall, a bottom, and a rear opening normally closed by at least one door comprising the steps of; simultaneously placing a disposable, lightweight, cargo liner including a flexible bag member having at least one flexible bulkhead secured thereto, within a container, placing the bag member in the container in a generally opened condition while positioning the flexible bulkhead adjacent the door opening such that forces applied by the bulk cargo within the liner will be transmitted to the bulkhead which yields and engages the rear door to apply the forces directly to the container door, loading the liner with a predetermined amount of bulk cargo by forcing the bulk cargo through an opening in the flexible bulkhead, transporting the container, liner and bulk material to a designated location, and evacuating the bulk cargo from within the liner while maintaining the positioning of the bag member within the container.
Claim 5
Independent Claim
162 words
The method of transporting bulk cargo within a container having side walls, an end wall, a bottom, and a rear opening normally closed by at least one door comprising the steps of; simultaneously placing a disposable, lightweight, cargo liner including a flexible bag member having at least one flexible bulkhead secured thereto, within a container, placing the bag member in the container in a generally opened condition while positioning the flexible bulkhead adjacent the door opening such that forces applied by the bulk cargo within the liner will be transmitted to the bulkhead which yields and engages the rear door to apply the forces directly to the container door, loading the liner with a predetermined amount of bulk cargo by forcing the bulk cargo through an opening in the flexible bulkhead, transporting the container, liner and bulk material to a designated location, and evacuating the bulk cargo from within the liner while maintaining the positioning of the bag member within the container.
Claim 6
Dependent Claim
64 words
The method of transporting bulk cargo within a container as recited in claim 3, wherein the flexible bag member has a flexible bulkhead secured to each end thereof and the bulkheads are wedged between the container side walls in an upright condition adjacent the end wall of the container and adjacent the door opening to maintain the bag member in a generally open condition.
Claim 7
Dependent Claim
62 words
The method of transporting bulk cargo within a container as recited in claim 3, wherein the bulkhead is positioned within the container in an upright condition such that the bulkhead end portions frictionally engage the container side walls and permit displacement of the bulkhead longitudinally of the container due to shifting of the bulk cargo during loading or transport of the container.
Claim 8
Dependent Claim
27 words
The method of transporting bulk cargo within a container as recited in claim 3, wherein the bulk cargo is evacuated from the liner bag member by vacuuming.
Claim 9
Dependent Claim
38 words
The method of transporting bulk cargo as recited in claim 3, wherein the bulk cargo is evacuated from the liner bag member by opening the container door, breaking a sealed opening in the bulkhead and tilting the container.
Claim 10
Dependent Claim
40 words
The method of transporting bulk cargo as recited in claim 7, and further including the step of positioning a support adjacent the bulkhead for supporting the flexible bulkhead and the load transmitted to the bulkhead during tilting of the container.
Claim 11
Dependent Claim
24 words
The method of transporting bulk cargo as defined in claim 3, wherein the liner bag member is secured to the container walls by adhesive.
Claim 12
Dependent Claim
27 words
The method of transporting bulk cArgo as defined in claim 3, and further including evacuating air from within the bag member after loading of the bulk cargo.
Claim 13
Dependent Claim
25 words
The method of transporting bulk cargo as defined in claim 3, and further including the step of sealing the bulkhead opening before transporting the container.
Claim 14
Independent Claim
141 words
The method of transporting bulk cargo within a container having side walls, an end wall, a bottom, and a rear opening normally closed by at least one door comprising the steps of; placing a disposable, lightweight, cargo liner including a flexible bag member having at least one flexible bulkhead secured thereto, within a container, placing the bag member in the container while positioning the flexible bulkhead adjacent the door opening such that the forces applied by the bulk cargo within the liner will be transmitted to the bulkhead which yields and engages the rear door to apply the forces directly to the container door, loading the liner with a predetermined amount of bulk cargo by forcing the bulk cargo through an opening in the flexible bulkhead transporting the container and contents to a location, and unloading the container at said location.
Claim 15
Independent Claim
141 words
The method of transporting bulk cargo within a container having side walls, an end wall, a bottom, and a rear opening normally closed by at least one door comprising the steps of; placing a disposable, lightweight, cargo liner including a flexible bag member having at least one flexible bulkhead secured thereto, within a container, placing the bag member in the container while positioning the flexible bulkhead adjacent the door opening such that the forces applied by the bulk cargo within the liner will be transmitted to the bulkhead which yields and engages the rear door to apply the forces directly to the container door, loading the liner with a predetermined amount of bulk cargo by forcing the bulk cargo through an opening in the flexible bulkhead transporting the container and contents to a location, and unloading the container at said location.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |