US3823510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically positionable gate assembly
Assignee: Sigma Tau Industrie Farmaceutiche Riunite SpA
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Filing: 1972-07-24
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Granted: 1974-07-16
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Expires: 1992-07-24
Abstract
Abstract A gate assembly comprises an angularly displaceable support structure disposed along a path to be gated and a gate member is pivotally mounted on the support structure for pivotal raising and lowering movement between a vertical, nonworking position wherein the gate member does not extend across the path and a horizontal, working position wherein the gate member extends across and blocks the path. The gate member is also mounted for linear movement towards and away from the support structure to enable extremely accurate positioning of the gate member. An oscillatory fluid motor effects angular displacement of the support structure and a set of reciprocatory fluid motors effect raising and lowering of the gate member as well as movement of the gate member towards and away from the support structure. A fluid control circuit automatically actuates the various fluid motors in a predetermined sequence.
Inventors
- 👤 S Panaccione
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:37
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/02; E; E05; E05F; E05F15/00; E05F15/50
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
140 words
A gate assembly comprising: an angularly displaceable support structure disposed along a path to be gated during use of the gate assembly; means mounting said support structure for only angular movement about a generally vertical axis and not axial movement along said axis; a movable gate member; mounting means mounting said gate member on said support structure for movement to a working position wherein same extends across the path depending upon the angular position of said support structure and a nonworking position wherein same extends out of the path irrespective of the angular position of said support structure; first actuating means for actuating said support structure to angularly displace same into and out of a position wherein said gate member may extend across the path; and second actuating means for actuating said gate member to said working and nonworking positions.
Claim 2
Dependent Claim
140 words
A gate assembly comprising: an angularly displaceable support structure disposed along a path to be gated during use of the gate assembly; means mounting said support structure for only angular movement about a generally vertical axis and not axial movement along said axis; a movable gate member; mounting means mounting said gate member on said support structure for movement to a working position wherein same extends across the path depending upon the angular position of said support structure and a nonworking position wherein same extends out of the path irrespective of the angular position of said support structure; first actuating means for actuating said support structure to angularly displace same into and out of a position wherein said gate member may extend across the path; and second actuating means for actuating said gate member to said working and nonworking positions.
Claim 3
Dependent Claim
88 words
A gate assembly according to claim 1; wherein said first actuating means includes an oscillatory motor having an output shaft connected to said support structure and operative when energized to effect angular oscillatory displacement of said support structure; wherein said second actuating means includes a reciprocatory motor having an output member connected to said gate member and operative when energized to effect reciprocal movement of said gate member between said working and non-working positions; and a control system for controlling the energization of said oscillatory and reciprocatory motor.
Claim 4
Dependent Claim
34 words
A gate assembly according to claim 2; wherein said oscillatory and reciprocatory motors each comprise fluid motors; and wherein said control system includes means for automatically energizing said fluid motors in a predetermined sequence.
Claim 5
Dependent Claim
48 words
A gate assembly according to claim 1; wherein said mounting means comprises at least one shaft connected to said gate member at one end and connected to said second actuating means at the other end, and a set of bearings rotatably mounting said shaft on said support structure.
Claim 6
Dependent Claim
118 words
A gate assembly according to claim 1; wherein said gate member comprises a pair of bars, and a series of connecting rods pivotally connected at each of their ends to respective ones of said bars to interconnect said bars together in parallel relationship; and wherein said mounting means comprises a rotatable shaft connected to each said bar at an end portion thereof operative to turn said bar in response to turning movement of said shaft, and a set of bearings rotatably mounting each shaft on said support structure; and wherein said second actuating means includes means connected to one of said shafts to turn same to effect turning movement of said bars between said working and nonworking positions.
Claim 7
Dependent Claim
42 words
A gate assembly according to claim 1; wherein said mounting means includes means mounting said gate member for movement towards and away from said support structure; and third actuating means for actuatIng said gate member towards and away from said support structure.
Claim 8
Dependent Claim
115 words
A gate assembly according to claim 6; wherein said mounting means comprises at least one shaft connected to said gate member, a sleeve bushing axially fixed relative to said support structure and slidably receiving therethrough said shaft thereby mounting said shaft for axial movement relative to said support structure, and a set of ball bearings rotatably mounting said sleeve bushing on said support structure; wherein said second actuating means includes means connected to said shaft for effecting angular turning of said shaft accompanied by movement of said gate member; and wherein said third actuating means includes means connected to said shaft for effecting axial movement of said shaft accompanied by movement of said gate member.
Claim 9
Dependent Claim
25 words
A gate assembly according to claim 7; including a control system operative to automatically control the operation of said first, second and third actuating means.
Claim 10
Dependent Claim
124 words
A gate assembly according to claim 8; wherein said first actuating means includes an oscillatory motor having an output shaft connected to said support structure and operative when energized to effect angular oscillatory displacement of said support structure; wherein said second actuating means includes a reciprocatory motor having an output member connected to said gate member and operative when energized to effect reciprocal movement of said gate member between said working and nonworking positions; wherein said third actuating means includes at least one reciprocatory motor having an output member connected to said gate member operative when energized to effect linear reciprocal movement of said gate member towards and away from said support structure; and wherein said control system controls the energization of said motors.
Claim 11
Dependent Claim
29 words
A gate assembly according to claim 9; wherein said control system includes means responsive to the positions of said motors for automatically energizing said motors in a predetermined sequence.
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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |