Patent US6474029B1 successfully refreshed from Google Patents.
Patent US3589766A successfully refreshed from Google Patents.
US3589766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating device for gripping members
Assignee: Individual
•
Filing: 1969-05-19
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Granted: 1971-06-29
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Expires: 1989-05-19
Abstract
Abstract A device for actuating gripping or holding members is disclosed, such as the shells of a grab or the clamping jaws for the cover of a container, in which the members to which the closing or opening operation of the gripping members is entrusted to rods of a resiliently variable length which are hingedly connected, on the one hand, to the supporting member of the gripping members and, on the other hand, to a thrust ring which can be rotated about the supporting member. The thrust ring has an oscillatory movement between two angular end positions and its angular movement is controlled by a drive member.
Inventors
- 👤 Giorgio Bormioli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:37
CPC Classifications
B; B66; B66C; B66C3/00; B66C3/14; B66C3/16; E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/40; E02F3/413; Y; Y10; Y10T; Y10T292/00; Y10T292/20
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
130 words
A device for actuating gripping members, such as the shells of a grab or the clamping jaws for a container cover, hinged to a supporting element and movable in different planes containing the axis of the supporting element, comprising a plurality of rods having a resiliently variable length and hinged between the gripping members and a common thrust ring which is rotatable about the axis of the supporting element, a manually operable member for rotating said thrust ring, said thrust ring being rotatable between two end angular positions, a first angular position in which the rods lie substantially in the planes of movement of the gripping members, and a second end angular position of the thrust ring in which the rods are inclined with respect to said planes of movement.
Claim 2
Independent Claim
130 words
A device for actuating gripping members, such as the shells of a grab or the clamping jaws for a container cover, hinged to a supporting element and movable in different planes containing the axis of the supporting element, comprising a plurality of rods having a resiliently variable length and hinged between the gripping members and a common thrust ring which is rotatable about the axis of the supporting element, a manually operable member for rotating said thrust ring, said thrust ring being rotatable between two end angular positions, a first angular position in which the rods lie substantially in the planes of movement of the gripping members, and a second end angular position of the thrust ring in which the rods are inclined with respect to said planes of movement.
Claim 3
Dependent Claim
54 words
A device according to claim 1 wherein when the thrust ring is in its first angular position, the rods are inclined with respect to the planes of movement of the gripping members in a direction which is opposite to the direction of the rods in the second end angular position of the thrust ring.
Claim 4
Dependent Claim
62 words
A device according to claim 1, wherein the rods are composed by two aligned portions which are connected to one another by an elastic joint, the resilient members in said joint being in their best position when the thrust ring is in its second end angular position; whereas they are compressed when the thrust ring is in its first end angular position.
Claim 5
Dependent Claim
35 words
A device according to claim 2, wherein means are provided to adjust the rod length in the at rest position, along with means for adjusting the maximum shortening due to the compression of the rods.
Claim 6
Dependent Claim
26 words
A device according to claim 1, wherein the rods are hingedly connected to the thrust ring and to the gripping members by means of spherical joints.
Claim 7
Dependent Claim
49 words
A device according to claim 1, wherein the rods are all of the same length and their hinge points to the thrust ring are equally spaced apart a distance which is equal to the distance between the points at which the gripping members are hinged to the supporting element.
References Cited (Backward Citations)
US271538A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |