US3655032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibratory feeder
Assignee: Arthur G Russell Co Inc
•
Filing: 1970-05-26
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Granted: 1972-04-11
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Expires: 1990-05-26
Abstract
Abstract A vibratory feeder of the bowl type in which the support system for the bowl includes a torsion bar extending vertically upwardly from a base and attached to the underside of the bowl at its axis. The torsion bar may be formed with two integral arms extending parallel to the main bar and provided with a vertically adjustable clamp for varying the stiffness of the torsion bar for tuning purposes.
Inventors
- 👤 Grant N Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:04
CPC Classifications
B; B65; B65G; B65G27/00; B65G27/10; B65G27/28; B65G27/30; B06; B06B; B06B3/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
130 words
A vibratory feeder having a material conveying vibratory element including a bowl, a base element, and means connected between the vibratory element and the base element for reciprocating the vibratory element in a path of movement having a horizontal and a vertical component, wherein the improvement comprises vertically extending torsion bar means located centrally of the bowl, first connecting means securing the upper end of the torsion bar means to the vibratory element and second connecting means securing the lower end of the torsion bar means to the base element to cause relative rotation of said ends in response to reciprocal movement of the vibratory element, at least one of said connecting means being yieldable in a vertical direction to accommodate the vertical component of movement of said vibratory element.
Claim 2
Dependent Claim
130 words
A vibratory feeder having a material conveying vibratory element including a bowl, a base element, and means connected between the vibratory element and the base element for reciprocating the vibratory element in a path of movement having a horizontal and a vertical component, wherein the improvement comprises vertically extending torsion bar means located centrally of the bowl, first connecting means securing the upper end of the torsion bar means to the vibratory element and second connecting means securing the lower end of the torsion bar means to the base element to cause relative rotation of said ends in response to reciprocal movement of the vibratory element, at least one of said connecting means being yieldable in a vertical direction to accommodate the vertical component of movement of said vibratory element.
Claim 3
Dependent Claim
30 words
A vibratory feeder as set forth in claim 1 wherein the torsion bar means is provided with means for varying the effective torsional spring rate of the torsion bar means.
Claim 4
Dependent Claim
47 words
A vibratory feeder as set forth in claim 1 wherein the torsion bar means comprises a plurality of parallel bars connected together at one end, and a clamp extending across the bars intermediate their ends, said clamp being adjustably mounted for selective positioning lengthwise of the bars.
Claim 5
Dependent Claim
37 words
A vibratory feeder as set forth in claim 1 wherein the connecting means providing a yieldable connection is a flexible plate connected to one of said elements and the torsion bar means is mounted on said plate.
Claim 6
Dependent Claim
27 words
A vibratory feeder as set forth in claim 3 wherein a feed screw is threadably engaged with the clamp for moving the clamp lengthwise of the bars.
Claim 7
Dependent Claim
71 words
A vibratory feeder as set forth in claim 1 wherein the means for reciprocating the bowl comprises a plurality of spring elements connected at their one ends to the base element and at their other ends to the bowl radially outwardly of the center of the bowl, said spring elements being disposed so that upon flexure of the spring elements, said other ends move in a path inclined to the vertical.
Claim 8
Dependent Claim
31 words
A vibratory feeder as set forth in claim 6, wherein the spring elements are connected by means to selectively vary the horizontal and vertical components of vibratory movement of the bowl.
Claim 9
Dependent Claim
72 words
A vibratory feeder as set forth in claim 1 wherein the means for reciprocating the bowl comprises a plurality of supporting and vibrating units angularly spaced around the bowl, each of said units comprising a pair of parallel mounting plates, leaf springs secured to and extending between the mounting plates to permit relative oscillatory movement of the plates in generally parallel paths, and motor means within the unit for oscillating the plates.
Claim 10
Dependent Claim
34 words
A vibratory feeder as set forth in claim 8, wherein the mounting plates are mounted on concentric screws permitting angular adjustment to vary the horizontal and vertical components of vibratory movement of the bowl.
Claim 11
Dependent Claim
72 words
A vibratory feeder as set forth in claim 1 wherein the torsion bar means comprises a first bar connected at opposite ends to the bowl and base element, and at least one additional bar parallel to the first bar having one free end and having its other end connected to one end of the first bar, and a clamp extending across the bars adjustably mounted for selective positioning lengthwise of the bars.
Claim 12
Dependent Claim
72 words
A vibratory feeder as set forth in claim 1 wherein the torsion bar means comprises a center bar having means at opposite ends for connection to the bowl and base element, and a pair of parallel bars on opposite sides of the center bar and integrally joined to the center bar at one end, and clamping means extending across all of the bars, said clamping means being adjustable vertically of the bars.
Claim 13
Dependent Claim
29 words
A vibratory feeder as set forth in claim 11, wherein feed screw means is threadably engaged with the clamping meanS for adjusting the clamping means vertically of the bars.
Claim 14
Dependent Claim
53 words
A vibratory feeder as set forth in claim 11, wherein the torsion bar means is a single rectangular steel plate having L-shaped slots forming a center bar with an elongated head portion and a pair of side bars integrally joined to the center bar at its end opposite from the elongated head portion.
Claim 15
Dependent Claim
73 words
A vibratory feeder as set forth in claim 4, wherein the torsion bar means comprises a first bar connected at its upper end to the bowl, at least one additional bar parallel to the first bar, said bars being mounted at their lower ends on a flexible plate, said plate being attached to the base element, and clamping means extending across the bars and adjustably mounted for selective positioning vertically of the bars.
Claim 16
Dependent Claim
41 words
A vibratory feeder as set forth in claim 14, wherein a feed screw is provided for adjusting the clamping means vertically of the bars, said feed screw being journaled in the flexible plate and being threadably engaged with the clamping means.
Claim 17
Dependent Claim
54 words
A vibratory feeder as set forth in claim 14, wherein the clamping means comprises a pair of clamps engaging opposite surfaces of the bars, and a pair of feed screws are threadably engaged, respectively, with the clamps, the feed screws being journaled in the flexible plate and being geared together at their lower ends.
Claim 18
Dependent Claim
31 words
A vibratory feeder as set forth in claim 16, in which the lower end of one of the feed screws is formed with an extension for engagement by a wrenching tool.
Claim 19
Dependent Claim
32 words
A vibratory feeder as set forth in claim 16, wherein the pair of clamps engaging the bars are provided with a surface of low-friction plastic material for sliding engagement with the bars.
Claim 20
Dependent Claim
66 words
For use in a vibratory feeder, a torsion bar assembly comprising a center bar and two parallel bars on opposite sides thereof and integrally joined at one end to the center bar, fastening means at opposite ends of the center bar for connecting the same to the feeder, and clamping means extending across the bars intermediate the fastening means and being adjustable lengthwise of the bars.
Claim 21
Dependent Claim
66 words
For use in a vibratory feeder, a torsion bar assembly comprising a center bar and two parallel bars on opposite sides thereof and integrally joined at one end to the center bar, fastening means at opposite ends of the center bar for connecting the same to the feeder, and clamping means extending across the bars intermediate the fastening means and being adjustable lengthwise of the bars.
Claim 22
Dependent Claim
44 words
A torsion bar assembly as set forth in claim 19, wherein the integrally joined ends of the bars are mounted on a flexible plate and wherein feed screw means is journaled at one end in the flexible plate and threadably engages the clamping means.
References Cited (Backward Citations)
US2821292A
Cited
US3087603A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |