US5267732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall mounted sliding block puzzle
Assignee: Soft Play LLC
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Filing: 1992-08-03
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Granted: 1993-12-07
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Expires: 2012-08-03
Abstract
Abstract A puzzle is provided, according to the preferred embodiment, having a series of rectangular blocks assembled so as to be able to slide on the surface of a rectangular planar back panel mounted in a vertical orientation. A set of four frame members, two of which have engaging tongue members and two of which have engaging groove members, are attached thereto. Each of the rectangular blocks is configured with two perpendicular, adjacent edge tongue members and two perpendicular groove members oriented to mutually engage respective tongues and grooves of other blocks and of the frame members of the puzzle. One space substantially equal to the size of one block is left empty to permit block movement. Each block has a magnet adapted to releasably engage a complementary magnet on the back panel so that when the magnets are engaged, the block positioned above an empty block space will not fall into that space. A front facing surface of each block carries a portion of a picture, for example, or a numeral so as to create an amusement puzzle.
Inventors
- 👤 Walter L. Bowen
- 👤 Neal A. Crites
- 👤 Peter K. Ephland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:35
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/06; A63F9/08; A63F9/0803; A63F9/0807; A63F9/001; A63F2009/002; A63F2009/0032
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
289 words
A puzzle, comprising: (a) a substantially rectangular back panel having a planar front surface; (b) a plurality of rectangular sliding blocks of substantially equal size and each said sliding block having a planar surface and adapted to being slidingly placed in a location on said front surface of said back panel in edge to edge contact so that there remains a location of a size equal to one of said sliding blocks on said back panel having no sliding block thereon, and each said sliding block having; (i) projecting sliding means integrally formed along a first two adjacent edges thereof; and (ii) concave elongate sliding means integrally formed along a second two adjacent edges thereof; (c) a first pair of elongate frame members having integrally formed upon each a projecting sliding means and secured to said front surface of said back panel with said frame member sliding means facing inwardly along two selected adjacent edges thereof; (d) a second pair of elongate frame members having integrally formed into each a concave elongate sliding means and secured to said front surface of said back panel with said concave elongate sliding means facing inwardly along two different adjacent edges thereof than said first frame members having said projecting sliding means; (e) a plurality of releasable retaining means mounted on said back panel in a plurality of positions corresponding to each location of said blocks and said location where there is no block; and (f) complementary releasable retaining means located on each of said blocks and adapted to interengage with said back panel retaining means in releasable securement when said sliding block is juxtaposed on said block position and to not interact with said retaining means when said block is positioned otherwise.
Claim 2
Dependent Claim
289 words
A puzzle, comprising: (a) a substantially rectangular back panel having a planar front surface; (b) a plurality of rectangular sliding blocks of substantially equal size and each said sliding block having a planar surface and adapted to being slidingly placed in a location on said front surface of said back panel in edge to edge contact so that there remains a location of a size equal to one of said sliding blocks on said back panel having no sliding block thereon, and each said sliding block having; (i) projecting sliding means integrally formed along a first two adjacent edges thereof; and (ii) concave elongate sliding means integrally formed along a second two adjacent edges thereof; (c) a first pair of elongate frame members having integrally formed upon each a projecting sliding means and secured to said front surface of said back panel with said frame member sliding means facing inwardly along two selected adjacent edges thereof; (d) a second pair of elongate frame members having integrally formed into each a concave elongate sliding means and secured to said front surface of said back panel with said concave elongate sliding means facing inwardly along two different adjacent edges thereof than said first frame members having said projecting sliding means; (e) a plurality of releasable retaining means mounted on said back panel in a plurality of positions corresponding to each location of said blocks and said location where there is no block; and (f) complementary releasable retaining means located on each of said blocks and adapted to interengage with said back panel retaining means in releasable securement when said sliding block is juxtaposed on said block position and to not interact with said retaining means when said block is positioned otherwise.
Claim 3
Dependent Claim
20 words
The puzzle as claimed in claim 1 in which said retaining means comprise magnets having defined poles of opposite polarity.
Claim 4
Dependent Claim
65 words
The puzzle as claimed in claim 2 in which said magnets are assembled with one pole of each magnet mounted on said back panel being aligned in the same direction and an opposite pole of each said magnet mounted on each said sliding block being aligned in a complementary direction so that said magnets on said back panel attract said magnets on said sliding blocks.
Claim 5
Dependent Claim
41 words
The puzzle as claimed in claim 1 in which said retaining means are positioned at the approximate center of each of said sliding blocks and in comparable positions to the position of each said sliding block center on said back panel.
Claim 6
Dependent Claim
23 words
The puzzle as claimed in claim 4 in which said projecting sliding means comprise tongues and said concave elongate sliding means comprise grooves.
Claim 7
Dependent Claim
34 words
The puzzle as claimed in claim 1 further comprising a picture displayed in part on each of said sliding blocks and adapted to be meaningful when said sliding blocks are oriented in selected positions.
Claim 8
Dependent Claim
23 words
The puzzle as claimed in claim 1 in which all components of the puzzle other than said magnets, are formed of non-magnetic material.
Claim 9
Dependent Claim
30 words
The puzzle as claimed in claim 1 wherein said back panel, block and frame members are vertically oriented and said releasable retaining means are operative with said puzzle vertically oriented.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-12-06 | 1997-06-07 | 1997-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-06 | 2001-06-07 | 2001-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-06 | 2005-06-07 | 2005-12-07 | $7700.00 | Window Closed / Lapsed |