US3679074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transport device
Assignee: Guenther Systems Inc
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Filing: 1970-04-22
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Granted: 1972-07-25
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Expires: 1990-04-22
Abstract
Abstract An adjustable transport device is provided which includes a multiple chain drive system for transporting unit loads of material between a number of vertically and laterally displaced locations. In one embodiment, the device is provided as a truck attachment, and is a second embodiment, the vertical lift is permanently installed in a truck dock.
Inventors
- 👤 Guenther L Kuehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:36
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/36; B60P1/38; B60P1/44
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
214 words
A transport device attachment for trucks comprising at least four corresponding pairs of support arms adapted to be secured to the frame of a truck and pivotally connected at their ends to define a support frame, said frame having a configuration dependent upon the displacement between the truck frame and the truck dock onto which the support frame is dropped, at least two pairs of offset and movable endless flexible support members supported in their travel by the support frame, a first plurality of guide members for maintaining the flexible support members coextensive and for guiding the members in a first direction, a second plurality of guide members for guiding one pair of the support members to the first plurality of guide members in a second direction and at least third and fourth pluralities of laterally spaced guide members responsive respectively to one of the two pairs of flexible support members for guiding the members to the first plurality of guide members and to the second plurality of guide members, respectively, in a third direction and reversible drive meanS operatively coupled to at least the first plurality of guide members for moving the guide members in either of two directions to implement the movement of the support members in either of the two directions.
Claim 2
Dependent Claim
214 words
A transport device attachment for trucks comprising at least four corresponding pairs of support arms adapted to be secured to the frame of a truck and pivotally connected at their ends to define a support frame, said frame having a configuration dependent upon the displacement between the truck frame and the truck dock onto which the support frame is dropped, at least two pairs of offset and movable endless flexible support members supported in their travel by the support frame, a first plurality of guide members for maintaining the flexible support members coextensive and for guiding the members in a first direction, a second plurality of guide members for guiding one pair of the support members to the first plurality of guide members in a second direction and at least third and fourth pluralities of laterally spaced guide members responsive respectively to one of the two pairs of flexible support members for guiding the members to the first plurality of guide members and to the second plurality of guide members, respectively, in a third direction and reversible drive meanS operatively coupled to at least the first plurality of guide members for moving the guide members in either of two directions to implement the movement of the support members in either of the two directions.
Claim 3
Dependent Claim
104 words
A transport device according to claim 1 wherein the support arms are pivotal through angles of ninety degrees to impart a configuration to the support frame ranging from a flattened shape, through an angular shape to a generally square shape and the lateral separation between the second plurality of guide members and selected guide members of the first plurality of guide members corresponds to the lateral separation between the third and fourth pluralities of guide members and further comprising platform means secured at one end to one pair of support members and secured at its other end to the other pair of support members.
Claim 4
Dependent Claim
39 words
A transport device according to claim 2 wherein the distance between the ends of the platform means secured to the two pairs of support members corresponds to the lateral separation between the third and fourth pluralities of guide members.
Claim 5
Dependent Claim
57 words
A transport device according to claim 1 wherein the support bars are adapted for attachment to the frame of a truck and wherein the reversible drive means comprises a drive shaft mounted in said truck and operatively coupled to at least the first plurality of guide members to drive the guide members in either of two directions.
Claim 6
Dependent Claim
88 words
A transport device according to claim 4 wherein the first plurality of guide members comprises two pairs of offset sprockets adapted to guide the offset endless flexible support members in their travel, another two pairs of sprockets vertically displaced from The two pairs of sprockets a distance adapted to correspond to the vertical displacement between the frame of the truck and a loading dock, and still another two pairs of sprockets laterally displaced from said another two pairs of sprockets and located in the same vertical plane therewith.
Claim 7
Dependent Claim
92 words
A transport device according to claim 5 wherein the second plurality of guide members comprises two pairs of sprockets laterally displaced from the two pairs of offset sprockets comprising the first plurality of guide members and located in the same vertical plane therewith, wherein the third plurality of laterally spaced guide members comprises one pair of sprockets located in a first vertical plane and wherein the fourth plurality of guide members comprises one pair of sprockets located in the first vertical plane and spaced laterally from the third plurality of guide members.
Claim 8
Dependent Claim
67 words
A transport device according to claim 1 wherein at least two pairs of offset and movable endless flexible support members comprise a plurality of pairs of offset and movable endless flexible support members and further comprising load supporting platform means, the platform means comprising a plurality of spaced rigid linear members, each member being connected at its ends to one pair of said movable endless support members.
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) | 1975-07-25 | 1976-01-24 | 1976-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-25 | 1980-01-24 | 1980-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-25 | 1984-01-24 | 1984-07-25 | $7700.00 | Window Closed / Lapsed |