Patent EP0201160A2 successfully refreshed from Google Patents.
Patent US3727482A successfully refreshed from Google Patents.
US3727482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic locking control device
Assignee: Adams Rite Manufacturing Co
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Filing: 1971-06-15
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Granted: 1973-04-17
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Expires: 1991-06-15
Abstract
Abstract An irreversible control device in which an input member is connected with an output member through a locking element which is fulcrumed on a fixed locking bar for swinging movements to locked and unlocked positions respectively with the locking bar, and is normally spring-urged into an unlocked position which permits the output member to be moved freely to different positions of adjustment in response to selective movements of the input member, but in an adjusted position will be fulcrumed to a locked position on the bar in response to an attempted movement of the output member away from its adjusted position by reverse operation by means of the output member.
Inventors
- 👤 L Geer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:57
CPC Classifications
F; F16; F16B; F16B1/00; F16B1/02; F16B1/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
177 words
An irreversible locking control device, comprising: a. an elongate locking bar; b. a structure normally movable on said bar in opposite directions under an applied input force, said structure having an output force transmitting member; c. means for locking said structure against movement along said bar in response to a reversal of said output force, and also automatically releasing said structure for movement along said bar, said means including: a tiltably mounted locking element, means on said element positioned on one side of said locking bar and having a contact normally slidable on said bar during said normal movement of said structure and forming a fulcrum for tilting movement of the locking element in response to said reversal of said output foRce, and contact means on said locking element positioned on an opposite side of said locking bar normally disengaged from said locking bar during said normal movement of said structure, said contact and said contact means coacting in response to said tilting movement of the locking element about said fulcrum to lockingly grip the locking bar.
Claim 2
Dependent Claim
177 words
An irreversible locking control device, comprising: a. an elongate locking bar; b. a structure normally movable on said bar in opposite directions under an applied input force, said structure having an output force transmitting member; c. means for locking said structure against movement along said bar in response to a reversal of said output force, and also automatically releasing said structure for movement along said bar, said means including: a tiltably mounted locking element, means on said element positioned on one side of said locking bar and having a contact normally slidable on said bar during said normal movement of said structure and forming a fulcrum for tilting movement of the locking element in response to said reversal of said output foRce, and contact means on said locking element positioned on an opposite side of said locking bar normally disengaged from said locking bar during said normal movement of said structure, said contact and said contact means coacting in response to said tilting movement of the locking element about said fulcrum to lockingly grip the locking bar.
Claim 3
Dependent Claim
103 words
A device according to claim 1, in which the locking element is connected at one end with said output member, said output member being movable to tilt said locking element in opposite directions, and in which the normally slidable contact comprises a pair of spaced contacts, and said contact means comprises a pair of spaced contacts in disengaged relation to the locking bar, whereby upon tilting movement of the locking element in each of its opposite directions, a contact in said one side of the locking bar and a contact in the opposite side of the bar will coact to grip the bar.
Claim 4
Dependent Claim
53 words
A device according to claim 2, in which a movable input member includes means for moving the locking element, when its contacts are in non-gripped relation with the bar, together with the output member as a unit to adjust the position of the output member in response to movements of the input member.
Claim 5
Dependent Claim
18 words
A device according to claim 3, wherein the output member is supported for pivotal movements in opposite directions.
Claim 6
Dependent Claim
14 words
A device according to claim 1, wherein the locking bar is of arcuate configuration.
Claim 7
Dependent Claim
41 words
A device according to claim 5, in which the means on said element positioned on said one side comprises a wall portion with a slot in which side portions thereof form spaced apart contacts for selective coaction with said contact means.
Claim 8
Dependent Claim
115 words
A device according to claim 5, in which the locking element is swingably connected at its inner end with a pivoted output member for tilting movements thereby in opposite directions, and in which the normally slidable contact comprises a pair of spaced contacts at an outer end portion of the locking element and said contact means comprises a pair of spaced contacts in disengaged relation to the locking bar, whereby a contact on said one side of the locking bar and a contact on the opposite side of the bar will coact to grip the bar as the locking element is swung in each of its opposite directions of movement by the pivoted output member.
Claim 9
Dependent Claim
31 words
A device according to claim 7, including means resiliently urging the locking element in a direction normally tending to maintain the normally slidable spaced contacts in engagement with the locking bar.
Claim 10
Dependent Claim
37 words
A device according to claim 1, including an input member and friction shoes carried by said locking element positioned on opposite sides of said locking bar, and spring means urging said shoes into engagement with said bar.
Claim 11
Dependent Claim
37 words
A device according to claim 9, wherein said spring means comprises a U-shaped spring member carried by said input member and having portions positioned on opposite sides of said locking bar, respectively engaged with said friction shoes.
Claim 12
Dependent Claim
26 words
A device according to claim 10, wherein the spring member provides a protective shield around the adjacent portions of the locking member and the locking bar.
Claim 13
Dependent Claim
38 words
A device according to claim 9, wherein the locking bar has an opening defining an operational dwell position, and one of said friction shoes has a portion adapted to releasably seat in said opening at said dwell position.
Claim 14
Dependent Claim
54 words
A device according to claim 1, including an input drive member coupled with an output drive member, said drive members being pivoted on a common axis, said locking element having a connection with said output drive member, and an input actuating handle member selectively connectible with said input drive member in longitudinally reversed positions.
Claim 15
Dependent Claim
40 words
A device according to claim 13, including an output lever having a head portion, and means for variably connecting said head portion to said output drive member whereby the angular position of said output lever may be varied throughout 360*.
Claim 16
Dependent Claim
118 words
An irreversible locking control device comprising: a. an elongate locking bar; b. a structure normally adjustably movable on said bar in opposite directions under an applied input force, said structure having an output force transmitting connection and including a locking element supported for tilting movement from a normal non-locking position to a locking position in response to a reversal of said output force; and c. bar contacting means carried by said locking element operative in its non-locking position to permit said adjusting movements of the structure, and in the locking position of the locking element being operative to grip the bar and oppose movement of the structure from an adjusted position by said reversal of said output force.
Claim 17
Dependent Claim
118 words
An irreversible locking control device comprising: a. an elongate locking bar; b. a structure normally adjustably movable on said bar in opposite directions under an applied input force, said structure having an output force transmitting connection and including a locking element supported for tilting movement from a normal non-locking position to a locking position in response to a reversal of said output force; and c. bar contacting means carried by said locking element operative in its non-locking position to permit said adjusting movements of the structure, and in the locking position of the locking element being operative to grip the bar and oppose movement of the structure from an adjusted position by said reversal of said output force.
References Cited (Backward Citations)
US2229857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |