Patent US4275476A successfully refreshed from Google Patents.
US4275476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice scraper
Assignee: Hopkins Manufacturing Corp
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Filing: 1979-09-19
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Granted: 1981-06-30
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Expires: 1999-09-19
Abstract
Abstract A molded ice scraper one piece body has independently flexible finger portions terminating in aligned scraping edges that are joined by webs a few thousandths of an inch thick. A continuous, but breakable, blade is thereby formed that will clean a streak-free swath on a windshield or similar surface. The slots separating the fingers are curved where they meet the scraper intermediate section, to eliminate stress concentration. The fingers have forward facing ice deflecting surfaces at an obtuse angle to the surface to be cleaned, extending from the scraper edge, and front facing ice chipping surfaces extending vertically upwardly from an intersection with the ice deflecting surfaces that is spaced back from the scraper edge.
Inventors
- 👤 Evan L. Hopkins
- 👤 Robert R. Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:29
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/045; A; A47; A47L; A47L1/00; A47L1/16
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
117 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a one piece body defining: a handle section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge, and a plurality of thin web members, each said web member being thin enough not to interfere with the individual flexibility of said scraping fingers, and extending from a finger to an adjacent finger, and having a thin front edge aligned with said scraping edges of said web members, and the scraping edges of said fingers thereby forming a continuous scraper blade edge.
Claim 2
Dependent Claim
117 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a one piece body defining: a handle section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge, and a plurality of thin web members, each said web member being thin enough not to interfere with the individual flexibility of said scraping fingers, and extending from a finger to an adjacent finger, and having a thin front edge aligned with said scraping edges of said web members, and the scraping edges of said fingers thereby forming a continuous scraper blade edge.
Claim 3
Dependent Claim
21 words
The scraper of claim 1 wherein each said scraping finger has lateral edges that converge inwardly back from said scraping edge.
Claim 4
Dependent Claim
68 words
The scraper of claim 1 wherein each said scraping finger includes: a forward facing ice deflecting surface extending upwardly from said front scraping edge at an obtuse angle in relation to the portion of the surface to be scraped, and a forward facing ice chipping surface extending vertically upwardly from said ice deflecting surface at an intersection with said surface that is spaced from said front scraping edge.
Claim 5
Dependent Claim
18 words
The scraper of claim 1 wherein said web members are breakable in response to use of the scraper.
Claim 6
Dependent Claim
18 words
The scraper of claim 1 wherein said web members are approximately a few thousandths of an inch thick.
Claim 7
Dependent Claim
28 words
The scraper of claim 1 wherein each said scraping finger has lateral edges that converge inwardly upwardly, and companion ones of said scraping finger scraping edges are adjacent.
Claim 8
Dependent Claim
138 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a molded one piece body defining: a handle section, an intermediate section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge aligned with the front scraping edges of the other fingers, each said finger having lateral edges that converge inwardly upwardly, and that converge inwardly back from said scraper edge to facilitate flexure of said fingers, and a plurality of breakable web members, approximately a few thousandths of an inch thick, each said web member extending from a finger to an adjacent finger and having a front edge aligned with said finger scraping edges, thereby forming a continual scraper blade edge.
Claim 9
Dependent Claim
138 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a molded one piece body defining: a handle section, an intermediate section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge aligned with the front scraping edges of the other fingers, each said finger having lateral edges that converge inwardly upwardly, and that converge inwardly back from said scraper edge to facilitate flexure of said fingers, and a plurality of breakable web members, approximately a few thousandths of an inch thick, each said web member extending from a finger to an adjacent finger and having a front edge aligned with said finger scraping edges, thereby forming a continual scraper blade edge.
Claim 10
Dependent Claim
124 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a one piece body defining: a handle section, an intermediate section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge, each said finger having lateral edges that converge inwardly back from said scraping edge, and a plurality of web members, each said web member extending from a finger to an adjacent finger and having a front edge aligned with said scraping edges of said adjacent fingers, the front edges of said web members and the scraping edges of said fingers thereby forming a continuous scraper blade edge.
Claim 11
Dependent Claim
124 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a one piece body defining: a handle section, an intermediate section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge, each said finger having lateral edges that converge inwardly back from said scraping edge, and a plurality of web members, each said web member extending from a finger to an adjacent finger and having a front edge aligned with said scraping edges of said adjacent fingers, the front edges of said web members and the scraping edges of said fingers thereby forming a continuous scraper blade edge.
Claim 12
Dependent Claim
40 words
The scraper of claim 8 wherein said intermediate section defines a plurality of concave curved front edges, each said curved edge extending from the rear of a finger lateral edge to the rear of the opposite facing finger lateral edge.
Claim 13
Dependent Claim
131 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a one piece body defining: a handle section, an intermediate section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge, each said scraping finger having lateral edges that converge inwardly upwardly, companion ones of said scraping finger scraping edges being adjacent, and a plurality of web members, each said web member extending from a finger to an adjacent finger and having a front edge aligned with said scraping edges of said adjacent fingers, the front edges of said web members and the scraping edges of said fingers thereby forming a continuous scraper blade edge.
Claim 14
Dependent Claim
131 words
A hand-held scraper for removing ice from a smooth surface, said scraper comprising a one piece body defining: a handle section, an intermediate section extending from said handle section, and a blade region comprising: a plurality of resilient, independently flexible, scraping fingers, each said finger extending from said intermediate section and terminating in a front scraping edge, each said scraping finger having lateral edges that converge inwardly upwardly, companion ones of said scraping finger scraping edges being adjacent, and a plurality of web members, each said web member extending from a finger to an adjacent finger and having a front edge aligned with said scraping edges of said adjacent fingers, the front edges of said web members and the scraping edges of said fingers thereby forming a continuous scraper blade edge.
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) | 1984-06-29 | 1984-12-29 | 1985-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-29 | 1988-12-29 | 1989-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-29 | 1992-12-29 | 1993-06-30 | $7700.00 | Window Closed / Lapsed |