US3971493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination transportable container and dispensing receiver
Assignee: Individual
•
Filing: 1974-08-26
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Granted: 1976-07-27
•
Expires: 1994-08-26
Abstract
Abstract A transportable container for handling powdered, granulated or other particulated solid materials, having a tapering lower wall portion of hopper form and a discharge opening at its base, the opening being normally closed by a valve member which is movable upwardly into the interior of the container to define an annular opening between its periphery and the internal surface of the container wall, retaining springs being provided within the container and arranged to hold the valve member in its closed position until lifted by, for example, a probe fixed relative to a material receiving member onto which the transportable container may be lowered. This invention THIS INVENTION concerns the handling of powdered, granulated or other particulate solid materials. Such materials will hereinafter be termed materials of the kind referred to. Materials of the kind referred to are widely used by the process industries and are normally dispensed for use from bins or hoppers. The materials may be delivered to the position where they are to be used in many different ways, but will normally be stored in bulk before being passed to such bins or hoppers. The use of transportable containers which are adapted to be returned to a source of supply for re-filling when emptied has been proposed with a view to reducing the extent to which the materials need to be handled. An object of the present invention is to provide a transportable container suitably arranged and adapted to deliver materials of the kind referred to to the position where they are to be used, and from which said materials may be dispensed. According to the present invention there is provided a transportable container for materials of the kind referred to having a tapering wall portion of hopper form, and a discharge opening at its base, said opening being normally closed by a valve member which is movable upwardly into the interior of the container to define an annular opening between its periphery and the internal surface of the container wall, resilient retaining means being provided within said container and arranged normally to hold said valve member in its closed position.
Inventors
- 👤 David Michael Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:38
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/18; B65G69/181; B65G69/183; B65D; B65D90/00; B65D90/54; B65D90/62; B65D90/626; B65G65/00; B65G65/30; B65G65/34; B65G65/40; B65G65/44; B65D2590/00; B65D2590/54; B65D2590/542
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
275 words
In combination, a transportable container for particulate materials, comprising a tapering wall portion of hopper form, means defining a discharge opening at its base, a movable valve member adjacent said discharge opening, resilient means urging said valve member downwardly such that the periphery of said valve member is normally held in sealing contact with the inner surface of said tapering wall portion to close said discharge opening, said resilient means comprising a plurality of tension spring means arranged in spaced relationship with each spring means having one end connected to said valve member and the other end anchored on said container, said resilient means and said valve member being wholly disposed within said container above said discharge opening, and said valve member being movable upwardly against the action of said resilient means to define an annular opening between its periphery and the internal surface of said container wall for discharging material from the container; and receiving equipment permanently located at a position where the materials are to be dispensed from the container and which is formed to removably mount said container, said receiving equipment including means operative as the container is lowered onto said equipment to engage the underside of said valve member to effect said upwards opening movement thereof, and said receiving equipment comprising a material receiving member of generally dish-like form and frame means for supporting said receiving member in an elevated position with respect to the ground and said transportable container in position above the receiving member, resilient isolator means disposed between said material receiving member and the frame, and means for vibrating said material receiving member with respect to said frame.
Claim 2
Dependent Claim
275 words
In combination, a transportable container for particulate materials, comprising a tapering wall portion of hopper form, means defining a discharge opening at its base, a movable valve member adjacent said discharge opening, resilient means urging said valve member downwardly such that the periphery of said valve member is normally held in sealing contact with the inner surface of said tapering wall portion to close said discharge opening, said resilient means comprising a plurality of tension spring means arranged in spaced relationship with each spring means having one end connected to said valve member and the other end anchored on said container, said resilient means and said valve member being wholly disposed within said container above said discharge opening, and said valve member being movable upwardly against the action of said resilient means to define an annular opening between its periphery and the internal surface of said container wall for discharging material from the container; and receiving equipment permanently located at a position where the materials are to be dispensed from the container and which is formed to removably mount said container, said receiving equipment including means operative as the container is lowered onto said equipment to engage the underside of said valve member to effect said upwards opening movement thereof, and said receiving equipment comprising a material receiving member of generally dish-like form and frame means for supporting said receiving member in an elevated position with respect to the ground and said transportable container in position above the receiving member, resilient isolator means disposed between said material receiving member and the frame, and means for vibrating said material receiving member with respect to said frame.
Claim 3
Dependent Claim
20 words
A transportable container according to claim 1, wherein said valve member is in the form of an upright conical shell.
Claim 4
Dependent Claim
55 words
A transportable container according to claim 1, wherein said container wall portion is a lower portion of inverted truncated conical form defining the central circular discharge opening at its base, and an upper portion of the container wall is defined by a cylindrical shell extending upwardly from the upper peripheral edge of said lower portion.
Claim 5
Dependent Claim
50 words
A transportable container according to claim 1, having legs whereby it may be stood upon the ground in a vertical position with the discharge aperture spaced above the ground surface, said legs having means for operatively engaging said equipment whereby said container may be correctly positioned on said receiving equipment.
Claim 6
Dependent Claim
16 words
A transportable container according to claim 4, wherein said legs are provided with vertically adjustable feet.
Claim 7
Dependent Claim
28 words
A transportable container according to claim 1, wherein said vibrating means is connected also to cause vibration of said means for effecting upward movement of said valve member.
Claim 8
Dependent Claim
60 words
A transportable container according to claim 1 wherein means are provided on said frame means which are adjustable in height and formed to mount said container on said equipment whereby the vertical position of the container on the receiving equipment can be varied relative to the frame, and thus adjust the height through which the valve member may be raised.
Claim 9
Dependent Claim
48 words
A transportable container according to claim 1, wherein said container and equipment have respective lower and upper peripheral edges and a resilient sleeve is attached to the upper peripheral edge of said receiving equipment and extends upwardly therefrom to engage with the lower peripheral edge of said container.
Claim 10
Dependent Claim
40 words
A transportable container according to claim 1, wherein said means on the equipment for effecting upwards movement of said valve member comprises a probe in the form of a vertical spindle fixed relative to and extending above said receiving equipment.
Claim 11
Dependent Claim
246 words
In combination, a transportable container for particulate materials, comprising a tapering wall portion of hopper form, means defining a discharge opening at its base, a movable valve member adjacent said discharge opening, resilient means urging said valve member downwardly such that the periphery of said valve member is normally held in sealing contact with the inner surface of said tapering wall portion to close said discharge opening, said resilient means comprising a plurality of tension spring means arranged in spaced relationship with each tension spring means having one end connected to said valve member and the other end anchored on said container, said resilient means and said valve member being wholly disposed within said container above said discharge opening, and said valve member being movable upwardly against the action of said resilient means to define an annular opening between its periphery and the internal surface of said container wall for discharging material from the container; and receiving equipment permanently located at a position where the materials are to be dispensed from the container and which is formed to removably mount said container, said equipment including means operative as the container is lowered onto the equipment to engage the underside of said valve member to effect said upwards opening movement thereof, and said means for effecting upward movement of said valve member being vertically adjustable whereby the height through which the valve member is raised when the container is positioned on the receiving equipment may be adjusted.
Claim 12
Dependent Claim
246 words
In combination, a transportable container for particulate materials, comprising a tapering wall portion of hopper form, means defining a discharge opening at its base, a movable valve member adjacent said discharge opening, resilient means urging said valve member downwardly such that the periphery of said valve member is normally held in sealing contact with the inner surface of said tapering wall portion to close said discharge opening, said resilient means comprising a plurality of tension spring means arranged in spaced relationship with each tension spring means having one end connected to said valve member and the other end anchored on said container, said resilient means and said valve member being wholly disposed within said container above said discharge opening, and said valve member being movable upwardly against the action of said resilient means to define an annular opening between its periphery and the internal surface of said container wall for discharging material from the container; and receiving equipment permanently located at a position where the materials are to be dispensed from the container and which is formed to removably mount said container, said equipment including means operative as the container is lowered onto the equipment to engage the underside of said valve member to effect said upwards opening movement thereof, and said means for effecting upward movement of said valve member being vertically adjustable whereby the height through which the valve member is raised when the container is positioned on the receiving equipment may be adjusted.
Claim 13
Dependent Claim
188 words
A transportable container for particulate materials, comprising a tapering wall portion of hopper form, means defining a discharge opening at its base, a movable valve member adjacent said discharge opening, and resilient means urging said valve member downwardly such that the periphery of said valve member is normally held in sealing contact with the inner surface of said tapering wall portion to close said discharge opening, said resilient means comprising a plurality of tension spring means arranged in spaced relationship with each spring means having one end connected to said valve member and the other end anchored on said container, said resilient means and said valve member being wholly disposed within said container above said discharge opening, and said valve member being movable upwardly against the action of said resilient means to define an annular opening between its periphery and the internal surface of said container wall for discharging material from the container, said container being provided with an internal annular collar spaced inwardly of said discharge opening, and said spring means being distributed around and within said collar and having their other ends anchored upon said collar.
Claim 14
Dependent Claim
188 words
A transportable container for particulate materials, comprising a tapering wall portion of hopper form, means defining a discharge opening at its base, a movable valve member adjacent said discharge opening, and resilient means urging said valve member downwardly such that the periphery of said valve member is normally held in sealing contact with the inner surface of said tapering wall portion to close said discharge opening, said resilient means comprising a plurality of tension spring means arranged in spaced relationship with each spring means having one end connected to said valve member and the other end anchored on said container, said resilient means and said valve member being wholly disposed within said container above said discharge opening, and said valve member being movable upwardly against the action of said resilient means to define an annular opening between its periphery and the internal surface of said container wall for discharging material from the container, said container being provided with an internal annular collar spaced inwardly of said discharge opening, and said spring means being distributed around and within said collar and having their other ends anchored upon said collar.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |