Patent US4444174A successfully refreshed from Google Patents.
US4444174A
Expired / Lapsed
US
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Tile parting devices
Assignee: Plasplugs Ltd
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Filing: 1982-01-18
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Granted: 1984-04-24
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Expires: 2002-01-18
Abstract
Abstract The invention concerns a device for parting tiles, particularly ceramic tiles, along a predetermined path. The device includes measuring means having a caliper arrangement to measure the width of an area to be covered by a tile, a tile-receiving region including a fixed point and a slidable member, said member having an elongate slot in which is engageable a cutting edge of a combined scoring and parting means, also provided with tile parting jaws. The caliper arrangement may be arranged to allow for a grouting gap.
Inventors
- 👤 Paul S. Hepworth
- 👤 Martin G. Whitehouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:11
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/22; B28D1/225; B26; B26F; B26F3/00; B26F3/002; Y; Y10; Y10T; Y10T225/00; Y10T225/30; Y10T225/307; Y10T225/321; Y10T225/325
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
138 words
A tile parting system for parting cladding tiles along a pre-determined path, comprising: (a) measuring means having a caliper arrangement for measuring the width of an area to be covered by a tile, means for receiving a tile of a width in excess of the width so measured, and means defining an elongated slot, for indicating upon a surface of said tile the path of a parting line to reduce the width of the tile by a required amount at least as great as the excess width; and (b) scoring and parting means including a cutting edge, said cutting edge selectively insertable through said slot such that said tile may be scored along said parting line path by said cutting edge, and jaw members movably disposed in said scoring and parting means and having a chevron-shaped tile-receiving opening.
Claim 2
Dependent Claim
138 words
A tile parting system for parting cladding tiles along a pre-determined path, comprising: (a) measuring means having a caliper arrangement for measuring the width of an area to be covered by a tile, means for receiving a tile of a width in excess of the width so measured, and means defining an elongated slot, for indicating upon a surface of said tile the path of a parting line to reduce the width of the tile by a required amount at least as great as the excess width; and (b) scoring and parting means including a cutting edge, said cutting edge selectively insertable through said slot such that said tile may be scored along said parting line path by said cutting edge, and jaw members movably disposed in said scoring and parting means and having a chevron-shaped tile-receiving opening.
Claim 3
Dependent Claim
54 words
A device as claimed in claim 1, wherein the path indicating means of the measuring means is arranged to increase said required amount by which the tile width is to be reduced by a predetermined constant amount equal to a grouting gap to be left between adjacent cladding tiles, irrespective of the measured width.
Claim 4
Dependent Claim
52 words
A device as claimed in claim 1 wherein the indicating means comprises a limb movable with said caliper arrangement and provided with said elongated slot, said slot having contoured side walls adapted to co-operate with shoulders formed on the scoring and parting means in the region of and flanking said cutting edge.
Claim 5
Dependent Claim
83 words
A device as claimed in claim 3, wherein the caliper arrangement of the measuring means is provided with two fixed pointers, a first one of which is associated with a movable pointer in order to enable measurement of the width of an area to be covered by a tile, the second fixed pointer being associated with said elongate slot so that the distance measurable between the first fixed pointer and the movable pointer is reproduced between the second fixed pointer and the slot.
Claim 6
Dependent Claim
50 words
A device as claimed in claim 4, wherein the position of the second fixed pointer is selected in relationship to the first fixed pointer to allow for a grouting gap so that the distance reproduced between the second fixed pointer and the slot is reduced by a predetermined constant amount.
Claim 7
Dependent Claim
49 words
A device as claimed in claim 1, wherein the jaw members are operable by means of a movable lever, which spring urged outwardly of the scoring and parting means and is retained by catch means in a retracted position within the scoring and parting means when not in use.
Claim 8
Dependent Claim
43 words
A device as claimed in claim 1 wherein said scoring and parting means further includes a main body defining a first portion of said jaw members and a handle defining a second portion of said jaw members pivotably jointed to said main body.
Claim 9
Dependent Claim
25 words
A device as claimed in claim 7 wherein said scoring and parting means further includes spring means for urging said handle into a predetermined position.
Claim 10
Dependent Claim
29 words
A device as set forth in claim 8 wherein said cutting edge and said first portion of said jaw member are positioned at opposite ends of said main body.
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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) | 1987-04-24 | 1987-10-24 | 1988-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-04-24 | 1991-10-24 | 1992-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-04-24 | 1995-10-24 | 1996-04-24 | $7700.00 | Window Closed / Lapsed |