Patent US4667362A successfully refreshed from Google Patents.
US4667362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scraper for carpet seaming irons
Assignee: PRESENTATION SYSTEMS Inc
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Filing: 1985-07-08
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Granted: 1987-05-26
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Expires: 2005-07-08
Abstract
Abstract A scraper is described for removing carpet seaming glue and other debris baked and/or caked in the grooves of carpet seaming irons. The scraper has a serrated scraping edge configured to mate with and scrape a grooved bottom surface of a carpet seaming iron shoe.
Inventors
- 👤 Carl S. Mattingly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:45
CPC Classifications
A; A47; A47L; A47L13/00; A47L13/02; A47L13/022
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
150 words
In combination with a carpet seaming iron having a bottom surface defined by a plurality of substantially identical, parallel grooves, a scraper for removing glue and debris baked in the plurality of parallel grooves of its bottom surface comprising in combination, a blade having a serrated edge, each serration having a configuration substantially similar to, and slightly smaller than the cross-sectional configuration of a groove, the serrations being spaced for insertion into the parallel grooves forming the bottom surface of the carpet seaming iron, whereby, each serration scrapes glue and debris from a particular groove as the blade, with its serrated edge oriented perpendicularly relative to the grooves, is drawn across the bottom surface of the iron in a direction parallel to the grooves, a tang integral with the blade extending perpendicularly with respect to the serrated edge, a handle composed of a thermally insulative material secured to the tang.
Claim 2
Dependent Claim
150 words
In combination with a carpet seaming iron having a bottom surface defined by a plurality of substantially identical, parallel grooves, a scraper for removing glue and debris baked in the plurality of parallel grooves of its bottom surface comprising in combination, a blade having a serrated edge, each serration having a configuration substantially similar to, and slightly smaller than the cross-sectional configuration of a groove, the serrations being spaced for insertion into the parallel grooves forming the bottom surface of the carpet seaming iron, whereby, each serration scrapes glue and debris from a particular groove as the blade, with its serrated edge oriented perpendicularly relative to the grooves, is drawn across the bottom surface of the iron in a direction parallel to the grooves, a tang integral with the blade extending perpendicularly with respect to the serrated edge, a handle composed of a thermally insulative material secured to the tang.
Claim 3
Dependent Claim
19 words
The scraper of claim 1 wherein the tang and handle are oriented at an angle relative to the blade.
Claim 4
Dependent Claim
63 words
The scraper of claim 2 wherein the blade and the tang are formed from a planar piece of metal which is bent to form a junction between the blade and tang, the tang narrowing from a width equaling that of the blade to a width equaling that of the handle, the handle having a shape configured to be held by a human hand.
Claim 5
Dependent Claim
16 words
The scraper of claim 1 wherein the blade curves around an axis perpendicular to the handle.
Claim 6
Dependent Claim
101 words
A scraper for removing glue and debris caked and/or baked onto a bottom heating surface of a carpet seaming iron having a plurality of parallel grooves comprising, a blade having a serrated edge with teeth configured and spaced for scraping baked glue and debris from the grooves in the bottom heating surface of the iron as the blade, with its serrated edge oriented perpendicularly with respect to the grooves, is drawn across the bottom surface of the iron in a direction parallel to that of the grooves, a handle secured to the blade oriented perpendicularly with respect to the serrated edge.
Claim 7
Dependent Claim
101 words
A scraper for removing glue and debris caked and/or baked onto a bottom heating surface of a carpet seaming iron having a plurality of parallel grooves comprising, a blade having a serrated edge with teeth configured and spaced for scraping baked glue and debris from the grooves in the bottom heating surface of the iron as the blade, with its serrated edge oriented perpendicularly with respect to the grooves, is drawn across the bottom surface of the iron in a direction parallel to that of the grooves, a handle secured to the blade oriented perpendicularly with respect to the serrated edge.
Claim 8
Dependent Claim
45 words
The scraper of claim 1, 2, or 5 wherein the bottom of the carpet seaming iron includes a deep central groove and the serrated edge of the blade includes a long central tooth dimensioned for scraping baked glue and debris from the deep central groove.
References Cited (Backward Citations)
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US2747911A
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US2824330A
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US3366987A
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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) | 1990-05-25 | 1990-11-24 | 1991-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-25 | 1994-11-24 | 1995-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-25 | 1998-11-24 | 1999-05-26 | $7700.00 | Window Closed / Lapsed |