US3854785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuating device
Assignee: Robert Krause GmbH and Co KG
•
Filing: 1973-09-17
•
Granted: 1974-12-17
•
Expires: 1993-09-17
Abstract
Abstract An actuating device adapted for being associated with a moveable member such as a drawer and operable upon pressing the drawer inwardly from a closed position to exert a force on the drawer in the opening direction which will push the drawer toward open position when released. Thereafter, upon pushing the drawer to closed position, the actuating device will latch in retracted position and from which retracted position it can, thereafter, be released by again pressing on the closed drawer in the closing direction. The actuating device includes a reciprocable push rod spring urged in the outward direction to a stopped position and having a stopped inner position from which it is released by inward pressure applied to the drawer.
Inventors
- 👤 R Manner
- 👤 P Hueber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:53
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/02; E05C19/022; A; A47; A47B; A47B88/00; A47B88/40; A47B88/453; A47B88/46; A47B88/463; Y; Y10; Y10S; Y10S292/00; Y10S292/04
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
342 words
A device for causing outward movement of a member such as a drawer or the like from closed position, said device comprising; a frame adjacent the member, a push rod in the frame extending in the direction of movement of said member and reciprocable in said direction between an inner retracted position and an outward position and having the outer end adapted to engage the member in closed position of the member, a latch bar parallel to and adjacent one side of the push rod and pivoted in the frame, a latch pin extending outwardly from the push rod on the latch bar side, a first spring in the frame biasing the push rod in outward direction, said latch bar having a first control surface along one edge, a first inwardly facing abutment region at the forward end of said first control surface engageable by the side of said latch pin in outward position of said push rod, said first control surface also having an incline leading rearwardly from said first abutment region and along which said latch pin slides as the push rod moves in retracting direction in said frame, a second inwardly facing abutment region at the rearward end of said incline remote engageable with the side of said latch pin to hold the push rod in retracted position, a second control surface on said latch bar engageable with the end of said latch pin upon inward movement of the push rod from retracted position and operable to release said latch pin from said second abutment region, a running surface extending along said latch bar generally parallel to said first control surface and from near said second abutment region to said first abutment region, said running surface adapted for engagement with the end of the latch pin, said latch pin being slidable along said running surface when disengaged from said second abutment region, and a second spring biasing said latch bar about the axis of the pivotal support thereof on said frame in a direction toward said first control surface.
Claim 2
Independent Claim
342 words
A device for causing outward movement of a member such as a drawer or the like from closed position, said device comprising; a frame adjacent the member, a push rod in the frame extending in the direction of movement of said member and reciprocable in said direction between an inner retracted position and an outward position and having the outer end adapted to engage the member in closed position of the member, a latch bar parallel to and adjacent one side of the push rod and pivoted in the frame, a latch pin extending outwardly from the push rod on the latch bar side, a first spring in the frame biasing the push rod in outward direction, said latch bar having a first control surface along one edge, a first inwardly facing abutment region at the forward end of said first control surface engageable by the side of said latch pin in outward position of said push rod, said first control surface also having an incline leading rearwardly from said first abutment region and along which said latch pin slides as the push rod moves in retracting direction in said frame, a second inwardly facing abutment region at the rearward end of said incline remote engageable with the side of said latch pin to hold the push rod in retracted position, a second control surface on said latch bar engageable with the end of said latch pin upon inward movement of the push rod from retracted position and operable to release said latch pin from said second abutment region, a running surface extending along said latch bar generally parallel to said first control surface and from near said second abutment region to said first abutment region, said running surface adapted for engagement with the end of the latch pin, said latch pin being slidable along said running surface when disengaged from said second abutment region, and a second spring biasing said latch bar about the axis of the pivotal support thereof on said frame in a direction toward said first control surface.
Claim 3
Dependent Claim
49 words
A device according to claim 1 in which said latch bar is pivoted in said frame near the forward end of the latch bar and extends rearwardly in the frame from the pivot, said latch bar being disposed in a plane perpendicular to the axis of said latch pin.
Claim 4
Dependent Claim
135 words
A device according to claim 1 in which said latch bar is pivoted in said frame near the forward end of the latch bar and extends rearwardly in the frame from the pivot, said latch bar having an elongated notch formed along said one edge thereof, the end of said notch nearest said pivot forming said first abutment region, the rearward portion of said notch forming said incline and the rearward end of said incline leading to near the adjacent edge of said bar, and a lateral recess extending into said edge of the bar at the rearward end of said incline, said lateral recess adapted for receiving said latch pin when the latch pin runs off the rearward end of the incline, said recess having a rearwadly facing edge forming said second abutment region.
Claim 5
Dependent Claim
41 words
A device according to claim 3 in which the forwardly facing edge of said lateral recess forms a third abutment region to abut the side of said latch pin when the latch pin runs off the rearward end of said incline.
Claim 6
Dependent Claim
47 words
A device according to claim 4 in which said third abutment region is substantially symmetrically located with respect to the rearward end of said incline so as to be directly opposed to said latch pin when the latch pin runs off the rearward end of the incline.
Claim 7
Dependent Claim
18 words
A device according to claim 1 in which said second control surface is adjacent said second abutment region.
Claim 8
Dependent Claim
32 words
A device according to claim 6 in which said second control surface is formed by a portion of said latch bar which is bent out of the plane of said latch bar.
Claim 9
Dependent Claim
24 words
A device according to claim 7 in which said second control surface extends at an acute angle to the plane of the latch bar.
Claim 10
Dependent Claim
47 words
A device according to claim 1 in which said latch bar and push rod comprise cooperating elements of abutment means which stop said latch bar in a predetermined rotated position relative to said push rod when said latch bar is under the influence of said second spring.
Claim 11
Dependent Claim
48 words
A device according to claim 1 in which said latch bar engages the pivotal support therefor with play to permit lateral movement of at least the free end of the latch bar when said latch pin is disengaged from said second abutment means by said second control surface.
Claim 12
Dependent Claim
38 words
A device according to claim 10 in which said latch bar is also moveable axially on its pivot and said second spring comprises a helical portion surrounding the pivot and disposed between the frame and the latch bar.
Claim 13
Dependent Claim
23 words
A device according to claim 1 in which said latch pin is in about the middle of the length of the push rod.
Claim 14
Dependent Claim
25 words
A device according to claim 1 in which said frame includes spaced plates in which said push rod is guided for reciprocation in the frame.
Claim 15
Dependent Claim
32 words
A device according to claim 1 in which said first spring is a tension spring having a forward end connected to said frame and a rearward end connected to said push rod.
Claim 16
Dependent Claim
22 words
A device according to claim 1 in which said push rod is a flat plate and is parallel to the latch bar.
Claim 17
Dependent Claim
26 words
A device according to claim 1 in which said frame is a U-shaped housing having mounting flange means on the free ends of the legs thereof.
Claim 18
Dependent Claim
28 words
A device according to claim 14 in which said first control surface is on the side of said latch bar which faces the open side of said housing.
Claim 19
Dependent Claim
38 words
A device according to claim 13 in which said plates are formed of synthetic material and have laterally protruding lugs, said frame having apertures therein to receive said lugs to locate and retain said plates in said frame.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |