US3637115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus utilizing sonic vibrations to facilitate the movement of particulate material along a sloping surface
Assignee: Kockums Mekaniska Verkstads AB
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Filing: 1970-02-02
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Granted: 1972-01-25
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Expires: 1990-02-02
Abstract
Abstract An apparatus for initiating and facilitating sliding of material along a sloping bottom comprises upper and lower members secured on opposite sides of the bottom and covering an opening provided therein, the upper member being a gas-permeable member. A sound transmitter carried by the lower member opens into a chamber formed by the two members and is directed towards the gaspermeable upper member. The bottom provides together with the elements thus supported thereby a vibrationable unit and forms a fixedly mounted diaphragm thereof in order to vibrate when material supported by the bottom is activated by sound oscillations produced by the sound transmitter.
Inventors
- 👤 Bengt L Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:00
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/54; B65D88/64; B65D88/66; B65D88/665
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
166 words
Apparatus for initiating and facilitating the sliding of particulate material along an essentially plane sloping surface, comprising a container having a bottom outlet and a resilient sloping member adjoining said outlet and forming said surface, said member having an opening spaced from the defining margins thereof, a lower cap rigidly fixed to the lower side of said member and carried thereby, said lower cap underlying and closing said opening, a gas-permeable member covering said opening on the upper side of said sloping member, said gas-permeable member and said lower cap defining a chamber, and a sound transmitter carried by said lower cap, said sound transmitter opening into said chamber and being directed toward said gas-permeable member to activate said material by loosening and activating the material by means of sound oscillations produced by said sound transmitter, said lower cap and said gas permeable member imparting sonic vibrations to said resilient sloping member which thereby forms a diaphragm further aiding in the movement of said particulate material.
Claim 2
Dependent Claim
166 words
Apparatus for initiating and facilitating the sliding of particulate material along an essentially plane sloping surface, comprising a container having a bottom outlet and a resilient sloping member adjoining said outlet and forming said surface, said member having an opening spaced from the defining margins thereof, a lower cap rigidly fixed to the lower side of said member and carried thereby, said lower cap underlying and closing said opening, a gas-permeable member covering said opening on the upper side of said sloping member, said gas-permeable member and said lower cap defining a chamber, and a sound transmitter carried by said lower cap, said sound transmitter opening into said chamber and being directed toward said gas-permeable member to activate said material by loosening and activating the material by means of sound oscillations produced by said sound transmitter, said lower cap and said gas permeable member imparting sonic vibrations to said resilient sloping member which thereby forms a diaphragm further aiding in the movement of said particulate material.
Claim 3
Dependent Claim
39 words
Apparatus as claimed in claim 1, wherein said gas-permeable member forms a supporting surface for the material on the upper side thereof, the shape of said gas-permeable member essentially coinciding with the wave front produced by said sound transmitter.
Claim 4
Dependent Claim
25 words
Apparatus as claimed in claim 2, wherein said gas-permeable member consists of a frustoconical upper cap projecting from the upper side of the sloping member.
Claim 5
Dependent Claim
34 words
Apparatus as claimed in claim 1, wherein said lower cap provided on the lower side of the sloping member consists of a frustoconical cap projecting from the lower side of the last said member.
Claim 6
Dependent Claim
23 words
Apparatus as claimed in claim 4, wherein said upper and lower caps are rigidly fixed to said sloping member concentrically with said opening.
Claim 7
Dependent Claim
43 words
Apparatus as claimed in claim 1, further comprising a pipe stub extending from said lower cap and said sound transmitter and resonator horn being disposed inside said pipe stub and directed toward the chamber formed by said lower cap and said gas-permeable member.
Claim 8
Dependent Claim
37 words
Apparatus as claimed in claim 1, further comprising a gas line connected to said chamber formed by said lower cap and said gas permeable member for supplying gas to the chamber for discharge through said gas-permeable member.
References Cited (Backward Citations)
US3231025A
Cited
US3305142A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |