US3716130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable voltage resilient connecting rod drive
Assignee: Carrier Vibrating Equipment Inc
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Filing: 1971-04-15
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Granted: 1973-02-13
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Expires: 1991-04-15
Abstract
Abstract A vibratory conveyor trough supported on resilient means to form a vibratory system having a resonant frequency is driven by an eccentric shaft and connecting rod resiliently coupled to the conveyor trough. The eccentric shaft, which may be fitted with a flywheel, is driven by a squirrel cage induction motor the speed of which is varied by adjustment of the voltage applied to the motor.
Inventors
- 👤 J Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:31
CPC Classifications
B; B65; B65G; B65G27/00; B65G27/10; B65G27/16; B65G27/18; B65G27/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
184 words
In a vibratory apparatus for doing work, in combination, a work member, a second member, resilient means connecting said work member to to said second member and cooperating with the members to form a vibratory system having a natural frequency, an eccentric shaft journaled in one of said members, a connecting rod journaled on the eccentric shaft, a spring mounted on the other of said members, means operatively connecting said spring to said connecting rod such that all of the force exerted by said connecting rod is applied to said other member and is controlled in amount by the deflection of said spring, said means and said spring forming a resilient drive from the connecting rod to said other member, and means for driving said eccentric shaft at a frequency in the range below said natural frequency whereby the deflection of the resilient drive plus the relative amplitude of vibration of the work member with respect to the second member equals the eccentricity of the eccentric shaft and said relative amplitude of vibration decreases as the operating speed of the eccentric shaft is decreased.
Claim 2
Dependent Claim
184 words
In a vibratory apparatus for doing work, in combination, a work member, a second member, resilient means connecting said work member to to said second member and cooperating with the members to form a vibratory system having a natural frequency, an eccentric shaft journaled in one of said members, a connecting rod journaled on the eccentric shaft, a spring mounted on the other of said members, means operatively connecting said spring to said connecting rod such that all of the force exerted by said connecting rod is applied to said other member and is controlled in amount by the deflection of said spring, said means and said spring forming a resilient drive from the connecting rod to said other member, and means for driving said eccentric shaft at a frequency in the range below said natural frequency whereby the deflection of the resilient drive plus the relative amplitude of vibration of the work member with respect to the second member equals the eccentricity of the eccentric shaft and said relative amplitude of vibration decreases as the operating speed of the eccentric shaft is decreased.
Claim 3
Dependent Claim
184 words
In a vibratory apparatus for doing work, in combination, a work member, a second member, resilient means connecting said work member to to said second member and cooperating with the members to form a vibratory system having a natural frequency, an eccentric shaft journaled in one of said members, a connecting rod journaled on the eccentric shaft, a spring mounted on the other of said members, means operatively connecting said spring to said connecting rod such that all of the force exerted by said connecting rod is applied to said other member and is controlled in amount by the deflection of said spring, said means and said spring forming a resilient drive from the connecting rod to said other member, and means for driving said eccentric shaft at a frequency in the range below said natural frequency whereby the deflection of the resilient drive plus the relative amplitude of vibration of the work member with respect to the second member equals the eccentricity of the eccentric shaft and said relative amplitude of vibration decreases as the operating speed of the eccentric shaft is decreased.
Claim 4
Dependent Claim
184 words
In a vibratory apparatus for doing work, in combination, a work member, a second member, resilient means connecting said work member to to said second member and cooperating with the members to form a vibratory system having a natural frequency, an eccentric shaft journaled in one of said members, a connecting rod journaled on the eccentric shaft, a spring mounted on the other of said members, means operatively connecting said spring to said connecting rod such that all of the force exerted by said connecting rod is applied to said other member and is controlled in amount by the deflection of said spring, said means and said spring forming a resilient drive from the connecting rod to said other member, and means for driving said eccentric shaft at a frequency in the range below said natural frequency whereby the deflection of the resilient drive plus the relative amplitude of vibration of the work member with respect to the second member equals the eccentricity of the eccentric shaft and said relative amplitude of vibration decreases as the operating speed of the eccentric shaft is decreased.
Claim 5
Dependent Claim
17 words
A vibratory apparatus according to claim 1 in which a flywheel is included on the eccentric shaft.
Claim 6
Dependent Claim
17 words
A vibratory apparatus according to claim 1 in which a flywheel is included on the motor shaft.
Claim 7
Dependent Claim
34 words
A vibratory apparatus according to claim 1 in which the resilient means connecting the members produces a bias force between the members greater than the alternating component of force in the connecting rod drive.
Claim 8
Dependent Claim
17 words
A vibratory apparatus according to claim 1 in which the variable voltage means comprises a variable autotransformer.
Claim 9
Dependent Claim
19 words
A vibratory apparatus according to claim 1 in which the variable voltage means comprises a controlled semi-conductor rectifier circuit.
References Cited (Backward Citations)
US3019889A
Cited
US3251457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |