Patent US2244158A successfully refreshed from Google Patents.
Patent US3630389A successfully refreshed from Google Patents.
US3630389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material-handling apparatus
Assignee: General Electric Canada Co
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Filing: 1970-09-30
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Granted: 1971-12-28
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Expires: 1990-09-30
Abstract
Abstract An articulated boom having an upper arm element and a lower arm element is secured to a support member at one end thereof to pivot about a first horizontal axis and has an end effector assembly at the other end thereof. The upper arm element and the lower arm elements are pivotally connected about a second horizontal axis. An intermediate member and a lower arm support member are provided for moving the lower arm element about the second horizontal axis. The intermediate member is pivotal about the first horizontal axis and the lower arm support member is pivotally connected at its ends to the lower arm elements and the intermediate member. An actuator pivotally connected between the support member and the intermediate member causes the upper arm element to swing about the second horizontal axis. Another actuator pivotally connected between the upper arm element and the support member pivotally swings the upper arm element about the first horizontal axis.
Inventors
- 👤 George S Schmidt
- 👤 Donald R Wilt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:52
CPC Classifications
B; B25; B25J; B25J3/00; B25J3/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
249 words
In combination, a slave support member, a slave member including an upper arm element and a lower arm element, one end portion of said upper arm element pivotally connected to said support member and pivotal about a first horizontal axis, one end portion of said lower arm element pivotally connected to the other end portion of said upper arm element and pivotal about a second horizontal axis, the longitudinal axes of said arm elements lying in a first vertical plane perpendicular to said first and second horizontal axes, means for moving said lower arm element about said second horizontal axis including an intermediate member pivotally connected to said slave support member and pivotal about said first horizontal axis, a lower arm support member having one end pivotally connected to said one end portion of said lower arm element and pivotal about a third horizontal axis longitudinally spaced from said second horizontal axis and having the other end pivotally connected to said intermediate member and pivotal about a fourth horizontal axis, said first, second, third, and fourth horizontal axes being parallel and the intersection thereof with said vertical plane forming the corners of a parallelogram, an actuator having one element thereof pivotally connected to said support member and the other element thereof pivotally connected to said intermediate member, whereby energization of said actuator causes said intermediate member to pivot about said first horizontal axis and produce a corresponding angular displacement of said lower arm element about said second horizontal axis.
Claim 2
Dependent Claim
249 words
In combination, a slave support member, a slave member including an upper arm element and a lower arm element, one end portion of said upper arm element pivotally connected to said support member and pivotal about a first horizontal axis, one end portion of said lower arm element pivotally connected to the other end portion of said upper arm element and pivotal about a second horizontal axis, the longitudinal axes of said arm elements lying in a first vertical plane perpendicular to said first and second horizontal axes, means for moving said lower arm element about said second horizontal axis including an intermediate member pivotally connected to said slave support member and pivotal about said first horizontal axis, a lower arm support member having one end pivotally connected to said one end portion of said lower arm element and pivotal about a third horizontal axis longitudinally spaced from said second horizontal axis and having the other end pivotally connected to said intermediate member and pivotal about a fourth horizontal axis, said first, second, third, and fourth horizontal axes being parallel and the intersection thereof with said vertical plane forming the corners of a parallelogram, an actuator having one element thereof pivotally connected to said support member and the other element thereof pivotally connected to said intermediate member, whereby energization of said actuator causes said intermediate member to pivot about said first horizontal axis and produce a corresponding angular displacement of said lower arm element about said second horizontal axis.
Claim 3
Dependent Claim
49 words
The combination of claim 1 in which is included another actuator having one element thereof pivotally connected to said support member and the other element thereof to said upper arm element, whereby energization of said other actuator causes said upper arm element to pivot about said first horizontal axis.
Claim 4
Dependent Claim
39 words
The combination of claim 1 in which said second horizontal axis intersects said lower arm member between the intersection of said third horizontal axis of said lower arm member and said other end portion of said lower arm member.
Claim 5
Dependent Claim
39 words
The combination of claim 1 in which said third horizontal axis intersects said lower arm member between the intersection of said second horizontal axis of said lower arm member and said other end portion of said lower arm membEr.
Claim 6
Dependent Claim
275 words
The combination of claim 1 including a master support member connected to said slave support member, a master member including an upper arm element and a lower arm element, one end portion of said upper master arm element pivotally connected to said master support member and pivotal about a sixth axis, one end portion of said lower master arm element pivotally connected to the other end portion of said upper master arm element and pivotal about a fifth horizontal axis, the longitudinal axes of said arm elements lying in a second vertical plane perpendicular to said fifth and sixth horizontal axes, a second intermediate member pivotally connected to said master support member and pivotal about said fifth horizontal axis, a link member having one end pivotally connected to said one end portion of said lower master arm element and pivotal about a seventh horizontal axis longitudinally spaced from said sixth horizontal axis and having the other end pivotally connected to said second intermediate member and pivotal about an eighth horizontal axis, said fifth, sixth, seventh, and eighth horizontal axes being parallel and forming the corners of a second parallelogram, a first servo loop means responsive to the displacement of said upper master arm element about said fifth horizontal axis to maintain alignment of the longitudinal axis of said upper slave arm element with the longitudinal axis of said upper master arm element, a second servo loop means responsive to the displacement of said lower master arm element about said sixth horizontal axis to maintain alignment of the longitudinal axis of said lower slave arm element with the longitudinal axis of said lower master arm element.
References Cited (Backward Citations)
US2670090A
Cited
US2966273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |