US3837525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Case having magnetic lock means
Assignee: Individual
•
Filing: 1972-08-09
•
Granted: 1974-09-24
•
Expires: 1992-08-09
Abstract
Abstract A case includes a bottom part or tray with a cover part which is telescopically engagable therewith. The top and bottom parts include interengagable latching members, namely a movable depending latch carried by the cover which is engagable with a detent or receiving latch part carried by the bottom when the two parts are telescopically engaged. The top part or cover includes a recess in which designed to receive a magnet, which magnetically attracts the latch parts carried by the cover so that they are displaced out of engagement with the receiving detents carried by the bottom part to unlock the device. The magnet is provided with a handle so that it may be lifted into and out of the recess defined in the top part in accordance with whether the two parts are to be locked together or unlocked.
Inventors
- 👤 S Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:55
CPC Classifications
E; E05; E05B; E05B47/00; E05B47/0038; E05B47/004; B; B65; B65D; B65D43/00; B65D43/02; B65D43/0202; B65D43/0204; B65D43/021; B65D2543/00; B65D2543/00009; B65D2543/00018; B65D2543/00064; B65D2543/0012; B65D2543/00175; B65D2543/00194; B65D2543/00231; B65D2543/00259; B65D2543/00296; B65D2543/00444; B65D2543/00481; B65D2543/0049; B65D2543/00518; B65D2543/00537; B65D2543/00555; B65D2543/00592; B65D2543/00601; B65D2543/00611; B65D2543/00648; B65D2543/00675; B65D2543/00694; B65D2543/00712; B65D2543/00722; B65D2543/0074; B65D2543/00787; B65D2543/00805; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/096; Y10T292/1014; Y10T292/1021; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7057
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
171 words
A case comprising a bottom substantially rectangular box shaped bottom part having side walls, at least one of said side walls having an interior recess defining a detent, a top part of substantially rectangular box shaped configuration telescopically engagable over said bottom part, a latch member including a horizontal portion slidable on said top part and a vertical portion depending from said horizontal portion and said top part and defining a hook engagable with said detent of said bottom part, means biasing said latch member to cause said hook to engage in said detent, a receiving area demarcated on said top part, a magnet positionable on said receiving area at a location where its magnetic field is disposed in the range of said latch member, said latch member including at least a portion which is magnetically attractable which is moved by positioning of said magnet in said receiving area against the force of said biasing means to remove said hook portion out of engagement with said detent to open said case.
Claim 2
Dependent Claim
171 words
A case comprising a bottom substantially rectangular box shaped bottom part having side walls, at least one of said side walls having an interior recess defining a detent, a top part of substantially rectangular box shaped configuration telescopically engagable over said bottom part, a latch member including a horizontal portion slidable on said top part and a vertical portion depending from said horizontal portion and said top part and defining a hook engagable with said detent of said bottom part, means biasing said latch member to cause said hook to engage in said detent, a receiving area demarcated on said top part, a magnet positionable on said receiving area at a location where its magnetic field is disposed in the range of said latch member, said latch member including at least a portion which is magnetically attractable which is moved by positioning of said magnet in said receiving area against the force of said biasing means to remove said hook portion out of engagement with said detent to open said case.
Claim 3
Dependent Claim
55 words
A case according to claim 1 wherein said top part includes a wall defining a hollow with a viewing opening overlying said latch member, said latch member being movable in the hollow of said wall below said viewing opening and being visible in said viewing opening to indicate when said casing is latched and unlatched.
Claim 4
Dependent Claim
107 words
A case according to claim 1 wherein said bottom part includes a recess defining a detent on each side wall, and said casing also including a latch for engagement with each detent located on respective sides of said receiving area, each of said latches including a depending portion with a hook shaped end engagable with said detent, each of said latches including a beveled face which is deflectable to clear said detent by the area of said side walls of said bottom part adjacent to said detent when said top part is closed over said bottom part and being movable after deflection into engagement with said detent.
Claim 5
Dependent Claim
159 words
A case of a covering type characterized by a case (10) with connections (11) (11'') having a lid (1) with holes (8) (8'') therein with a ceiling wall having a surface with a central indentation (2), and flat hollow indentations (4) (4'') on each side of said central indentation (2), a magnetic device (3) engageable and disengageable in the central indentation, magnetic pieces (5) (5'') located in the hollow indentations (4) (4'') movable in respect to the magnetic device when in the central indentation (2), spring elements (6) (6'') biasing said magnetic pieces (5) (5'') to an outer position, said magnetic pieces having hooked projections (7) (7'') turning outward and protruding from the underside of the lid (1) through the holes (8) (8'') and engageable with the connections (11) (11'') of said case when urged by said spring elements, but being movable against the biasing force of said spring elements by said magnetic device to disengage from said connections.
Claim 6
Dependent Claim
159 words
A case of a covering type characterized by a case (10) with connections (11) (11'') having a lid (1) with holes (8) (8'') therein with a ceiling wall having a surface with a central indentation (2), and flat hollow indentations (4) (4'') on each side of said central indentation (2), a magnetic device (3) engageable and disengageable in the central indentation, magnetic pieces (5) (5'') located in the hollow indentations (4) (4'') movable in respect to the magnetic device when in the central indentation (2), spring elements (6) (6'') biasing said magnetic pieces (5) (5'') to an outer position, said magnetic pieces having hooked projections (7) (7'') turning outward and protruding from the underside of the lid (1) through the holes (8) (8'') and engageable with the connections (11) (11'') of said case when urged by said spring elements, but being movable against the biasing force of said spring elements by said magnetic device to disengage from said connections.
Claim 7
Dependent Claim
187 words
A case comprising a bottom part, a cover part engageable with said bottom part, interengageable latch parts carried on said bottom part and said cover part in a position to interengagE when said cover part is engaged on said bottom part for locking said parts together and including a magnetically attractable displaceable latch member, and magnet means associated with the case for attracting and releasing said latch member for opening and closing said latch parts, said cover part being telescopically engageable with said bottom part and wherein said bottom part comprises a rectangular box shaped portion having side walls and at least one of said side walls having a recess defining a detent, said magnetically attractable latch member comprising a member carried on said top part and being displaceable on said top part, said member having a hook-shaped latch engageable with said detent, means for biasing said latch member to urge the hook-shaped portion into engagement with said recess detent of said bottom part, said magnet being positionable to overcome the force of said biasing means to move said latch member out of engagement with said detent.
Claim 8
Dependent Claim
187 words
A case comprising a bottom part, a cover part engageable with said bottom part, interengageable latch parts carried on said bottom part and said cover part in a position to interengagE when said cover part is engaged on said bottom part for locking said parts together and including a magnetically attractable displaceable latch member, and magnet means associated with the case for attracting and releasing said latch member for opening and closing said latch parts, said cover part being telescopically engageable with said bottom part and wherein said bottom part comprises a rectangular box shaped portion having side walls and at least one of said side walls having a recess defining a detent, said magnetically attractable latch member comprising a member carried on said top part and being displaceable on said top part, said member having a hook-shaped latch engageable with said detent, means for biasing said latch member to urge the hook-shaped portion into engagement with said recess detent of said bottom part, said magnet being positionable to overcome the force of said biasing means to move said latch member out of engagement with said detent.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |