Patent US3690439A successfully refreshed from Google Patents.
US3690439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accumulating conveyor
Assignee: Guenther Systems Inc
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Filing: 1971-05-17
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Granted: 1972-09-12
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Expires: 1991-05-17
Abstract
Abstract As disclosed herein, an accumulating conveyor comprises at least two spaced roller chains that travel in a prescribed endless loop below a storage surface. Aligned trigger cam members are selectively mounted on the chains. The cam members are displaceable between load supporting positions whereat the cam members support the unit loads of material and enable the loads to be transported by the chains between spaced locations and nonload supporting positions whereat the cam members travel beneath the unit loads of material without contacting the loads.
Inventors
- 👤 Guenther L Kuehl
- 👤 Axel Coelln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:26
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/38; B65G17/26; B65G17/48; B65G19/00; B65G19/02; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
In a reversible conveyor system for transferring unit loads of material to and from a first surface, the improvement comprising at least one pair of spaced movable endless support members adapted to be driven in a prescribed flow path within which the first surface is located, and displaceable load supporting members mounted on the spaced support members, said members being displaceable between load supporting positions whereat the members are adapted to support the unit loads of material above the storage surface and non-load supporting positions whereat the members are located below the unit loads of material.
Claim 2
Dependent Claim
96 words
In a reversible conveyor system for transferring unit loads of material to and from a first surface, the improvement comprising at least one pair of spaced movable endless support members adapted to be driven in a prescribed flow path within which the first surface is located, and displaceable load supporting members mounted on the spaced support members, said members being displaceable between load supporting positions whereat the members are adapted to support the unit loads of material above the storage surface and non-load supporting positions whereat the members are located below the unit loads of material.
Claim 3
Dependent Claim
61 words
A conveyor system according to claim 1 wherein the first surface is disposed between the endless support members and wherein each of the dispalceable load supporting members comprises a cam member rotatable between a load supporting position whereat one surface thereof extends above the first surface and a disengagement position whereat none of the surfaces thereof extends above the first surface.
Claim 4
Dependent Claim
34 words
A conveyor system according to claim 2 wherein the second surface is disposed between the support members and extends over the entire length of the prescribed flow path for the movable endless support members.
Claim 5
Dependent Claim
42 words
A conveyor system according to claim 2 wherein each cam member comprises a trigger portion and further comprising trigger means for engaging sequentially the trigger portion of each of said cam member for driving each cam member into a load supporting position.
Claim 6
Dependent Claim
56 words
A conveyor system according to claim 4 wherein the natural position for each of the cam members on the support members is the disengagement position and further comprising guide means situated adjacent the triggering means for maintaining each of the cam members in its load supporting position over a short distance in the prescribed flow path.
Claim 7
Dependent Claim
51 words
A conveyor system according to claim 5 wherein the cam member surface extending above the first surface is displaceable about a pivot point in a controlled arc and wherein the weight of the unit loads of material supported by the cam members maintains the cam members in their load supporting positions.
Claim 8
Dependent Claim
70 words
A conveyor system according to claim 6 further comprising drive means for driving the spaced movable endless support members from a first position adjacent the triggering means to the first surface and further comprising means for interrupting the motion by the unit loads of material above the second surface to drive the cam members into their disengagement positions and thereby deposit the unit loads of material onto the second surface.
Claim 9
Dependent Claim
75 words
A conveyor system according to claim 6 further comprising drive means for driving the spaced endless support members in a direction awaY from the first surface to a discharge point and further comprising means for rotating the cam members situated beneath the unit loads of material into their load supporting positions to thereby lift the unit loads of material away from the first surface and transport the unit loads of material to the discharge point.
Claim 10
Dependent Claim
89 words
A conveyor system according to claim 8 wherein the flow path comprises a drive flow path extending between the first surface and the discharge point and a return flow path extending between the discharge point and the first surface, the cam rotating means comprises the trigger portions of the cam members located in the return flow path for the spaced members and further comprising guide means for maintaining the cam members in a position to trigger the cam members in the drive flow path into their load supporting positions.
References Cited (Backward Citations)
US2990941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |