US3767351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory granulate compacting apparatus for block manufacture
Assignee: Von Roll AG
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Filing: 1971-10-13
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Granted: 1973-10-23
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Expires: 1991-10-13
Abstract
Abstract An essentially tubular shell has movable tops and bottoms, which are subjected to vibratory impacts in non-cyclically recurring pulses; top or bottom may be subjected to a constant pressure, or both may be subjected to impacts which are synchronized and opposite each other. The impact pulses are controllable both as to frequency (which may be zero), amplitude and wave shape, the impulses being preferably controlled from an electrical programming source which controls application of pressure fluid to the top and bottom.
Inventors
- 👤 H Blaser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:03
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/022; B22; B22C; B22C15/00; B22C15/10; B22C15/28; B22C15/30; B22F; B22F3/00; B22F3/02; B22F3/03; B28; B28B; B28B3/00; B28B3/02; B28B3/022
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
171 words
Vibratory granulate compacting apparatus for the manufacture of blocks comprising a housing; a multi-part container having a bottom part, a top part and a shell part located between the bottom and top part and having a central axis, the granular material being placed within the container for compaction; a piston means connected to at least one of the parts to move the connected part in axial direction for compaction of material located within the container by steady-state pressure and, selectively, vibratory motion; fluid energy means connected to said piston means and moving said piston means to provide compacting pressure and vibratory impacts in axial direction, the energy having parameters including amplitude, frequency, wave shape; a fluid energy source; electrical signal controlled fluid control means controlling application of fluid energy from said source to said energy means; and programmed electrical control means generating signals representative of at least one of said parameters, connected to and controlling said signal-controlled fluid control means to apply said fluid energy controlled by one of said parameters.
Claim 2
Dependent Claim
171 words
Vibratory granulate compacting apparatus for the manufacture of blocks comprising a housing; a multi-part container having a bottom part, a top part and a shell part located between the bottom and top part and having a central axis, the granular material being placed within the container for compaction; a piston means connected to at least one of the parts to move the connected part in axial direction for compaction of material located within the container by steady-state pressure and, selectively, vibratory motion; fluid energy means connected to said piston means and moving said piston means to provide compacting pressure and vibratory impacts in axial direction, the energy having parameters including amplitude, frequency, wave shape; a fluid energy source; electrical signal controlled fluid control means controlling application of fluid energy from said source to said energy means; and programmed electrical control means generating signals representative of at least one of said parameters, connected to and controlling said signal-controlled fluid control means to apply said fluid energy controlled by one of said parameters.
Claim 3
Dependent Claim
27 words
Apparatus according to claim 1, wherein the energy means comprises a cylinder for the piston to form a piston-cylinder combination, the fluid energy being hydraulic pressure fluid.
Claim 4
Dependent Claim
44 words
Apparatus according to claim 1, comprising a pair of energy means, one each connected to the bottom and top part of the multi-part container, respectively; and the piston means comprises a top and a bottom piston, respectively connected to the top and bottom part.
Claim 5
Dependent Claim
46 words
Apparatus according to claim 3, wherein one of the energy means is controllable to provide steady compacting pressure, whereby the frequency of compaction is zero; and the other energy means is controllable to provide impacts at non-cyclically recurring intervals to prevent harmonic oscillations from being established.
Claim 6
Dependent Claim
29 words
Apparatus according to claim 3, wherein the energy means connected to both the top and bottom parts are controllable to provide, each, counter-acting synchronized impacts directed towards each other.
Claim 7
Dependent Claim
62 words
Apparatus according to claim 3, wherein the energy means comprises a cylinder for the piston to form a piston-cylinder combination; one of the cylinder parts of one piston-cylinder combination is fixedly connected to the housing; the pistons of both said piston-cylinder combinations being connected to the bottom and top parts respectively; and the other cylinder part is slidably secured in the housing.
Claim 8
Dependent Claim
15 words
Apparatus according to claim 6, including an additional cylinder-piston combination supporting the other cylinder part.
Claim 9
Dependent Claim
45 words
Apparatus according to claim 7, wherein the housing closes the top and bottom parts and has a separable, removable top and bottom cover; one of the cylinders being secured to the removable top cover, and the additional cylinder-piston combination being secured to the bottom cover.
Claim 10
Dependent Claim
29 words
Apparatus according to claim 8, wherein aT least one of the top and bottom covers is removable from the housing as an entirety including the respectively connected piston-cylinder combination.
Claim 11
Dependent Claim
55 words
Apparatus according to claim 1, wherein the means applying energy to the parts, and the means controlling the frequency and amplitude parameter of application of energy comprises a source of control signals; transducer and amplifier means controlled by the control signal; and means interconnecting the transducer means and the amplifier means with the energy means.
Claim 12
Dependent Claim
42 words
Apparatus according to claim 10, wherein the control signals derived from the source provide signals of opposite polarity; and a pair of energy means are provided acting in opposite axial directions, one energy means each being controllable by one of the signals.
Claim 13
Dependent Claim
11 words
Apparatus according to claim 1, including resilient means supporting the housing.
Claim 14
Dependent Claim
26 words
Apparatus according to claim 1, wherein the housing is sealed; and suction outlet means are provided both at the upper and lower portions of the housing.
Claim 15
Dependent Claim
149 words
Compaction apparatus comprising a generally tubular shell (6); top piston and bottom pistons (12, 13) slidable in said shell, the material to be compacted being placed in the shell between the pistons; top and bottom housing covers (7, 8) secured to the shell (6) and enclosing said top and bottom pistons, respectively; hydraulic power means (17, 22) controlling movement of the pistons into the shell to compact granulate therein; an electro-hydraulic control loop (60, 65-85, 93-100); and program means (60) connected to said control loop and controlling the power means (17, 22) applying hydraulic pressure by each said pistons (12, 13) with respect to at least one of: amplitude; frequency; and wave shape of applied power to provide for compacting and retracting movement of the pistons and vibratory impacts thereof to be transmitted from the pistons to the material within the shell, as controlled by said program means (60).
Claim 16
Dependent Claim
149 words
Compaction apparatus comprising a generally tubular shell (6); top piston and bottom pistons (12, 13) slidable in said shell, the material to be compacted being placed in the shell between the pistons; top and bottom housing covers (7, 8) secured to the shell (6) and enclosing said top and bottom pistons, respectively; hydraulic power means (17, 22) controlling movement of the pistons into the shell to compact granulate therein; an electro-hydraulic control loop (60, 65-85, 93-100); and program means (60) connected to said control loop and controlling the power means (17, 22) applying hydraulic pressure by each said pistons (12, 13) with respect to at least one of: amplitude; frequency; and wave shape of applied power to provide for compacting and retracting movement of the pistons and vibratory impacts thereof to be transmitted from the pistons to the material within the shell, as controlled by said program means (60).
Claim 17
Dependent Claim
24 words
Apparatus according to claim 14, wherein the program means controlling the power means comprises a random signal generator providing non-cyclically recurring power control signals.
Claim 18
Dependent Claim
49 words
Apparatus according to claim 14, wherein the program means controlling the power means comprises a signal generator; and the electro- hydraulic control loop comprises transducer means connected to the power means to transduce the signals from the signal generator to compression strokes by said top, and bottom piston, respectively.
Claim 19
Dependent Claim
48 words
Apparatus according to claim 16, wherein the signal controlling application of power to one of the pistons is a slowly, or unvarying compression signal and the signal controlling the other piston is a pulse-type signal providing impact, or blow-type excursions of the other piston at non-cyclically recurring rates.
Claim 20
Dependent Claim
39 words
Apparatus according to claim 15, wherein the signal from the signal generator controlling application of power controls both said pistons to move synchronously in opposition towards each other to provide counter-acting compression impacts against the material in the shell.
Claim 21
Dependent Claim
41 words
Apparatus according to claim 2, comprising hydraulic connection means connecting the fluid energy source and the cylinder-piston combination, the electrical signal controlled fluid control means being interposed in the connection means and being located on the cylinder of the piston-cylinder combination.
References Cited (Backward Citations)
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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) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |