Patent US4706639A successfully refreshed from Google Patents.
US4184587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating conveyor and modular drive unit therefor
Assignee: Individual
•
Filing: 1976-05-27
•
Granted: 1980-01-22
•
Expires: 1996-05-27
Abstract
Abstract A modular framework, arranged to be installed in a main support frame for an elongated conveyor, supports at least three transverse drive beams for reciprocation in the longitudinal direction of the framework, each of the drive beams being connected to a source of power for independent reciprocation, the sources of power also being supported by the framework. A plurality of slat connectors are spaced apart transversely of the framework and are secured in groups one to each of the drive beams for longitudinal reciprocation therewith, each of the slat connectors serving to secure thereto an elongated conveyor slat arranged to extend the full length of the elongated conveyor. Slat guide members are mounted on the framework, as well as on the main support frame, in longitudinal alignment with the slat connectors, for guiding the slats in their longitudinal reciprocation.
Inventors
- 👤 Olof A. Hallstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:13
CPC Classifications
B; B65; B65G; B65G25/00; B65G25/04; B65G25/06; B65G25/065
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
174 words
For use with an elongated main conveyor frame having longitudinal side beams and longitudinally spaced transverse beams and a plurality of elongated conveyor slats of substantially the same length as the main frame, a separate modular slat drive unit comprising: (a) a unitary framework including longitudinal and transverse frame members, the longitudinal frame members being substantially shorter than the main frame, (b) a plurality of transverse drive beam members mounted on the unitary framework in longitudinally spaced relation for reciprocation in the longitudinal direction of the unitary framework, (c) a source of drive power for each drive beam, interconnecting the associated drive beam and the unitary framework, (d) attachment means on the unitary framework for connection to the main frame for incorporating the unitary framework into a portion of the length of the main frame, and (e) connector means on each drive beam for securing thereto at least one of the elongated conveyor slats extending in the longitudinal direction of and beyond the unitary framework substantially to the opposite ends of the main frame.
Claim 2
Dependent Claim
174 words
For use with an elongated main conveyor frame having longitudinal side beams and longitudinally spaced transverse beams and a plurality of elongated conveyor slats of substantially the same length as the main frame, a separate modular slat drive unit comprising: (a) a unitary framework including longitudinal and transverse frame members, the longitudinal frame members being substantially shorter than the main frame, (b) a plurality of transverse drive beam members mounted on the unitary framework in longitudinally spaced relation for reciprocation in the longitudinal direction of the unitary framework, (c) a source of drive power for each drive beam, interconnecting the associated drive beam and the unitary framework, (d) attachment means on the unitary framework for connection to the main frame for incorporating the unitary framework into a portion of the length of the main frame, and (e) connector means on each drive beam for securing thereto at least one of the elongated conveyor slats extending in the longitudinal direction of and beyond the unitary framework substantially to the opposite ends of the main frame.
Claim 3
Dependent Claim
172 words
In combination with an elongated main conveyor frame having longitudinal side beams and longitudinally spaced transverse beams and a plurality of elongated conveyor slats of substantially the same length as the main frame, a modular slat drive unit comprising: (a) a unitary framework including longitudinal and transverse frame members, the longitudinal frame members being substantially shorter than the main frame, (b) a plurality of transverse drive beam members mounted on the unitary framework in longitudinally spaced relation for reciprocation in the longitudinal direction of the unitary framework and main frame, (c) a source of drive power for each drive beam, interconnecting the associated drive beam and the unitary framework, (d) attachment means interconnecting the main frame and unitary framework and incorporating the unitary framework into a portion of the length of the main frame, and (e) connector means on each drive beam securing thereto at least one of the elongated conveyor slats extending in the longitudinal direction of and beyond the unitary framework substantially to the opposite ends of the main frame.
Claim 4
Dependent Claim
172 words
In combination with an elongated main conveyor frame having longitudinal side beams and longitudinally spaced transverse beams and a plurality of elongated conveyor slats of substantially the same length as the main frame, a modular slat drive unit comprising: (a) a unitary framework including longitudinal and transverse frame members, the longitudinal frame members being substantially shorter than the main frame, (b) a plurality of transverse drive beam members mounted on the unitary framework in longitudinally spaced relation for reciprocation in the longitudinal direction of the unitary framework and main frame, (c) a source of drive power for each drive beam, interconnecting the associated drive beam and the unitary framework, (d) attachment means interconnecting the main frame and unitary framework and incorporating the unitary framework into a portion of the length of the main frame, and (e) connector means on each drive beam securing thereto at least one of the elongated conveyor slats extending in the longitudinal direction of and beyond the unitary framework substantially to the opposite ends of the main frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |