US3707218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor apparatus
Assignee: Individual
•
Filing: 1970-10-26
•
Granted: 1972-12-26
•
Expires: 1990-10-26
Abstract
Abstract An endless belt conveyor section for use with an endless belt of a type constructed to permit it to move in a curved path, characterized by guideways having articulated sections along which spaced belt carriers move along upper and lower runs, the articulated sections being adjustable to provide various curved paths of movement for the belt.
Inventors
- 👤 Mackey M Payne
- 👤 John S Harper Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:02
CPC Classifications
B; B65; B65G; B65G21/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
269 words
An endless belt conveyor comprising: a. an endless belt of a type constructed to permit it to move along a curved path, including a plurality of longitudinally spaced belt carriers, each having laterally spaced supporting and guiding rollers thereon, b. a pair of laterally spaced elongated guideways along which the carriers are adapted to move, c. said guideways comprising a plurality of aligned sections, d. each section comprising a pair of laterally spaced relatively short, like-run portions, and rigid means extending therebetween securing same together against relative movement, e. each run portion having a substantially horizontal wall along which a roller rolls for supporting the belt and a substantially vertical wall along which a guide roller rolls for maintaining the belt laterally aligned with the guideways, f. a rigid fixed support disposed at each of the opposite ends of the guideways, g. a resilient rod extending between the rigid supports and through all of said rigid means substantially along said central line, h. opposite ends of said horizontal and vertical walls having mating adjacent interlocking tongues and recesses so constructed that when the rod is bent, the interlocking tongues and recesses remain in abutting relation along one guideway and spread apart along the other, thereby providing a greater length of curvature along the latter than the former, i. the connections between the resilient rod and rigid supports, and with said rigid means, being such that when said supports are oriented relatively to desired fixed positions, the rod is flexed to a curved configuration, which in turn, moves said sections to curved configurations conforming to the curvature of the rod.
Claim 2
Dependent Claim
269 words
An endless belt conveyor comprising: a. an endless belt of a type constructed to permit it to move along a curved path, including a plurality of longitudinally spaced belt carriers, each having laterally spaced supporting and guiding rollers thereon, b. a pair of laterally spaced elongated guideways along which the carriers are adapted to move, c. said guideways comprising a plurality of aligned sections, d. each section comprising a pair of laterally spaced relatively short, like-run portions, and rigid means extending therebetween securing same together against relative movement, e. each run portion having a substantially horizontal wall along which a roller rolls for supporting the belt and a substantially vertical wall along which a guide roller rolls for maintaining the belt laterally aligned with the guideways, f. a rigid fixed support disposed at each of the opposite ends of the guideways, g. a resilient rod extending between the rigid supports and through all of said rigid means substantially along said central line, h. opposite ends of said horizontal and vertical walls having mating adjacent interlocking tongues and recesses so constructed that when the rod is bent, the interlocking tongues and recesses remain in abutting relation along one guideway and spread apart along the other, thereby providing a greater length of curvature along the latter than the former, i. the connections between the resilient rod and rigid supports, and with said rigid means, being such that when said supports are oriented relatively to desired fixed positions, the rod is flexed to a curved configuration, which in turn, moves said sections to curved configurations conforming to the curvature of the rod.
Claim 3
Dependent Claim
40 words
A conveyor in accordance with claim 1 wherein each run portion is formed with a second horizontal wall spaced from the first named wall, forming three walls of a channel, and like tongues and recesses in said second horizontal wall.
Claim 4
Dependent Claim
21 words
A conveyor in accordance with claim 2 including a second like pair of lower return guideways affixed to said rigid means.
Claim 5
Dependent Claim
30 words
A conveyor in accordance with claim 2 wherein the open sides of the channels face each other and the guide rollers roll along opposite outside vertical walls of the channels.
Claim 6
Dependent Claim
23 words
A conveyor in accordance with claim 1 wherein said rod provides the sole support for the conveyor portion disposed between said rigid supports.
Claim 7
Dependent Claim
34 words
A conveyor in accordance with claim 1 wherein said rod is non-circular in cross section and so proportioneD to provide greater resistance to bending moment in one direction than in a direction perpendicular thereto.
Claim 8
Dependent Claim
44 words
A conveyor in accordance with claim 6, wherein said rod comprises a plurality of adjacent like rectangular rods adapted to slip relatively, when flexed, thereby providing the beam strength of a solid rod of equal cross-section but with a lesser resistance to flexure thereof.
Claim 9
Dependent Claim
22 words
A conveyor in accordance with claim 6 wherein the rod is circular, having the same resistance against bending in all lateral directions.
Claim 10
Dependent Claim
61 words
A conveyor in accordance with claim 1 including resilient compression means disposed between said sections tending to urge same apart, the construction being such that when the rod is bent, the interlocking tongues and recesses remain in abutting relation along one guideway and spread apart along the other, thereby providing a greater length of curvature along the latter than the former.
Claim 11
Dependent Claim
234 words
An endless belt conveyor for use with a belt of a type constructed to permit it to move in a curved path, comprising: a. a pair of like laterally spaced elongated guideways along which a plurality of spaced belt carrier members are adapted to move, b. a support, such as a leg, disposed adjacent each of the opposite ends of the guideways, c. a resilient rod extending between the supports, d. said guideways being formed as articulated run portions affixed to the rod, e. the articulated run portions being formed of identical units, each unit comprising four spaced channel shaped members, the walls of which are provided with tongues and recesses adapted to mate and interlock with corresponding tongues and recesses of an adjacent unit, f. each unit being rigidly affixed adjacent corners of a rectangular plate, said plate having a central aperture through which the rod slideably extends, the rod being non-rotatable with respect to the plate, g. resilient means disposed between the units to permit them to move relatively, and at least one adjustable length tie rod extending between the end supports for securing the units together, h. the construction and arrangement being such that by relative orientation of the supports the rod may be shaped to a desired curve between its ends, the run portions moving relative to each other and forming curved guideways corresponding to the curvature of the rod.
Claim 12
Dependent Claim
234 words
An endless belt conveyor for use with a belt of a type constructed to permit it to move in a curved path, comprising: a. a pair of like laterally spaced elongated guideways along which a plurality of spaced belt carrier members are adapted to move, b. a support, such as a leg, disposed adjacent each of the opposite ends of the guideways, c. a resilient rod extending between the supports, d. said guideways being formed as articulated run portions affixed to the rod, e. the articulated run portions being formed of identical units, each unit comprising four spaced channel shaped members, the walls of which are provided with tongues and recesses adapted to mate and interlock with corresponding tongues and recesses of an adjacent unit, f. each unit being rigidly affixed adjacent corners of a rectangular plate, said plate having a central aperture through which the rod slideably extends, the rod being non-rotatable with respect to the plate, g. resilient means disposed between the units to permit them to move relatively, and at least one adjustable length tie rod extending between the end supports for securing the units together, h. the construction and arrangement being such that by relative orientation of the supports the rod may be shaped to a desired curve between its ends, the run portions moving relative to each other and forming curved guideways corresponding to the curvature of the rod.
Claim 13
Dependent Claim
37 words
A conveyor in accordance with claim 10 wherein the resilient means comprises two sets of compression springs disposed between the plates at opposite sides of the central apertures, and an adjustable length tie rod for each set.
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |