US3888558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock and interlock mechanism
Assignee: Hauserman Inc
•
Filing: 1974-02-19
•
Granted: 1975-06-10
•
Expires: 1994-02-19
Abstract
Abstract A multiple shelf cabinet has a plurality of slidable shelves and a plurality of pivoted doors closing off said shelves. A combined shelf and door locking mechanism acts to either by means of a key lock prevent all of the doors from being opened and shelves from being slid outwardly or by an interlock device, prevent a second shelf from being slid outwardly when a first shelf is slid out. The locking mechanism includes a vertical locking bar having a plurality of hooking members for holding the doors closed and a plurality of cam members carried by the shelves that engage means on the locking bar to move the same to a locking position as a shelf is slid out.
Inventors
- 👤 Ernst G Himsl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:51
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/46; E05B65/462; E05B65/463
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
156 words
A cabinet having top, bottom, rear and side walls and an open front, a plurality of slidable shelves arranged to slide from an inner position out the open front to an exposed position and a plurality of pivoted doors swingable between vertical closed positions closing access to the shelves and horizontal open positions permitting access to the shelves, each door associated with one shelf, a combined lock means for simultaneously preventing the doors from being moved from their closed positions and preventing sliding of said shelves from their inner positions, said lock means including a vertically movable lock bar movable between a locking and an unlocking position, lock device means on said lock bar and engaging said doors when said lock bar is in locking position and said doors are in closed position said lock device means engaging said shelves to prevent the same from sliding out when the lock bar is in its locking position.
Claim 2
Dependent Claim
156 words
A cabinet having top, bottom, rear and side walls and an open front, a plurality of slidable shelves arranged to slide from an inner position out the open front to an exposed position and a plurality of pivoted doors swingable between vertical closed positions closing access to the shelves and horizontal open positions permitting access to the shelves, each door associated with one shelf, a combined lock means for simultaneously preventing the doors from being moved from their closed positions and preventing sliding of said shelves from their inner positions, said lock means including a vertically movable lock bar movable between a locking and an unlocking position, lock device means on said lock bar and engaging said doors when said lock bar is in locking position and said doors are in closed position said lock device means engaging said shelves to prevent the same from sliding out when the lock bar is in its locking position.
Claim 3
Dependent Claim
35 words
The cabinet of claim 1 wherein key lock means are provided on said cabinet arranged to hold said lock bar in its locking position to prevent opening of said doors or sliding of said shelves.
Claim 4
Dependent Claim
37 words
The cabinet of claim 1 wherein said shelves carry operator means thereon arranged to move the lock bar to its locking position when any of the shelves are moved from their inner position toward their outer position.
Claim 5
Dependent Claim
24 words
The cabinet of claim 3 wherein said operator means comprises cam means arranged to engage said lock device means as the shelves are opened.
Claim 6
Dependent Claim
28 words
The cabinet of claim 4 wherein said lock bar is arranged to normally move to its unlocking position and said cam means acts to overcome said normal movement.
Claim 7
Dependent Claim
16 words
The cabinet of claim 5 wherein said lock bar is spring biased to its unlocking position.
Claim 8
Dependent Claim
17 words
The cabinet of claim 5 wherein said lock bar is moved by gravity to its unlocking position.
Claim 9
Dependent Claim
51 words
The cabinet of claim 5 wherein said lock device means includes a plurality of hook members carried by and protruding forwardly from the lock bar and arranged to enter into apertures in said doors and engage said doors to hold them closed when the lock bar is in its locking position.
Claim 10
Dependent Claim
42 words
The cabinet of claim 8 wherein said lock device means further inCludes roller members arranged to be engaged by and moved by said cams as any shelf is slid out, said movement causing movement of said lock bar to its locking position.
Claim 11
Dependent Claim
36 words
The cabinet of claim 9 wherein said shelves carry abutment members arranged to engage said rollers when the lock bar is in its locking position to thereby prevent movement of the shelves towards their outer positions.
Claim 12
Dependent Claim
27 words
The cabinet of claim 10 wherein key lock means are provided to hold said lock bar in its locking position to prevent any door from being opened.
Claim 13
Dependent Claim
54 words
The cabinet of claim 1 wherein said lock device means comprises a plurality of elements extending from the lock bars, hook means on said doors arranged to be engaged by said elements when the doors are in their closed position and said lock bar is moved from its unlocking position to its locking position.
Claim 14
Dependent Claim
88 words
The cabinet of claim 12 wherein said shelves each carry a combination lock bar operating member including a cam portion and an abutment portion, said abutment portion located to engage one of said elements when the lock bar is in its locking position and said cam portion engaging said one element when the lock bar is in its unlocking position, said cam portion acting to move said element and the lock bar to its locking position as the shelf carrying the lock bar operating member is moved outward.
Claim 15
Dependent Claim
77 words
A multiple shelf cabinet having at least one of the shelves slidable outward, a plurality of doors on said cabinet and independent of said shelves closing said cabinet and each arranged to prevent access to one of said shelves, a combined shelf and door interlock device arranged in one condition to simultaneously lock the doors from being opened and prevent the shelves from being slid outward, and means for holding the interlock device in its one condition.
Claim 16
Dependent Claim
77 words
A multiple shelf cabinet having at least one of the shelves slidable outward, a plurality of doors on said cabinet and independent of said shelves closing said cabinet and each arranged to prevent access to one of said shelves, a combined shelf and door interlock device arranged in one condition to simultaneously lock the doors from being opened and prevent the shelves from being slid outward, and means for holding the interlock device in its one condition.
Claim 17
Dependent Claim
67 words
The cabinet of claim 14 wherein the interlock device includes means for holding the same in either a locking condition or an unlocking condition and said shelves carry cam members that act to move the interlock device between its conditions as the shelf is opened and closed whereby when one shelf is opened the other shelves are prevented from being opened until the one shelf is closed.
Claim 18
Dependent Claim
22 words
The cabinet of claim 14 wherein the means for holding the interlock device in its one condition comprises a key lock device.
References Cited (Backward Citations)
US2842419A
Cited
US2886392A
Cited
US3033634A
Cited
US3378321A
Cited
US3622216A
Cited
US3776007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |