Patent US3633726A successfully refreshed from Google Patents.
US3633726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous elevators having automatic charging and discharging
Assignee: Saunier Duval SA
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Filing: 1970-10-20
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Granted: 1972-01-11
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Expires: 1990-10-20
Abstract
Abstract The present invention relates to continuous elevating and lowering devices disposed in back-to-back relation utilizing balancers carrying containers and mobile ejectors for removing the containers from the elevator. The mobile ejectors of the present invention include an ejection arm subject to pivotal movement controlled by a cam which cam provides successive movements for removal of a stop which prevents swinging of the container; begins disengagement of the container from the elevator by a push arm and ends the pushing of the container into disengaged position by a second push arm. The mobile ejector removes the containers from the elevator without balancing them and the containers remain in a substantially vertical position during removal.
Inventors
- 👤 Claude Carlier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:41
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/60; B65G47/61; B65G17/00; B65G17/16; B66; B66B; B66B9/00; B66B9/10; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
A continuous elevator comprising a pair of spaced endless chains, vertical ascending and descending runs for said chains, balances on said chains, a pair of spaced arms on each of said balances for automatically engaging a container at a loading station on the descending run of said chains for movement by said chains, a mobile ejector carried by said chains adjacent each of said balances, said ejector including a shaft carried by said chains, a plurality of arms rotatably mounted on said shaft for independent rotation, a cam at a container discharge station, means on each of said arms engaging said cam for rotating said arms, at least two of said arms being of different lengths, said cam rotating the shorter of said two arms into engaging position with the lower portion of said container moving the lower portion of said container laterally toward the discharge station, said cam then rotating the longer of said two arms into engagement with the upper portion of said container moving the upper portion of said container laterally toward the discharge station whereby said container reaches the discharge station at minimum velocity and remains in substantially vertical position during its lateral movement.
Claim 2
Dependent Claim
198 words
A continuous elevator comprising a pair of spaced endless chains, vertical ascending and descending runs for said chains, balances on said chains, a pair of spaced arms on each of said balances for automatically engaging a container at a loading station on the descending run of said chains for movement by said chains, a mobile ejector carried by said chains adjacent each of said balances, said ejector including a shaft carried by said chains, a plurality of arms rotatably mounted on said shaft for independent rotation, a cam at a container discharge station, means on each of said arms engaging said cam for rotating said arms, at least two of said arms being of different lengths, said cam rotating the shorter of said two arms into engaging position with the lower portion of said container moving the lower portion of said container laterally toward the discharge station, said cam then rotating the longer of said two arms into engagement with the upper portion of said container moving the upper portion of said container laterally toward the discharge station whereby said container reaches the discharge station at minimum velocity and remains in substantially vertical position during its lateral movement.
Claim 3
Dependent Claim
45 words
An elevator as described in claim 1, said cam terminating rotation of the shorter of said two arms while continuing the rotation of the longer of said two arms whereby said container is rotated about the shorter of said two arms into substantially vertical position.
Claim 4
Dependent Claim
43 words
An elevator as described in claim 1 including a stop mounted on one of said plurality of arms engaging said container preventing swinging thereof on said arms, said cam first rotating said one of said arms and disengaging said stop from said container.
Claim 5
Dependent Claim
41 words
An elevator as described in claim 1, said means on each of said arms engaging said cam lying substantially in the same vertical plane and said cam having a plurality of successive flat angularly disposed cam surfaces engaged by said means.
Claim 6
Dependent Claim
38 words
An elevator as described in claim 1 including springs holding said arms in an equilibrium position prior to engagement by said cam, said stop holding said container in substantially vertical position on the descending run of said chains.
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |