Patent US4040140A successfully refreshed from Google Patents.
US4040140A
Expired / Lapsed
US
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Ice scraper
Assignee: Hopkins Manufacturing Corp
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Filing: 1976-05-17
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Granted: 1977-08-09
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Expires: 1996-05-17
Abstract
Abstract An ice and snow scraper adapted to be held in the hand of a user is disclosed. The scraper comprises a one-piece body having a hand-fitting handle section, a blade section, and an intermediate section. The blade section comprises a scraping surface and an oblique ice-deflecting surface. The intermediate section is curved so as to displace the blade section below the plane of the handle section. This scraper shape facilitates the application of force longitudinally of a surface to be scraped with the hand of the user remaining spaced from that surface while ice is deflected substantially away from the hand of the user and the blade is oriented at the optimum scraping angle.
Inventors
- 👤 Evan Leon Hopkins
- 👤 Donald W. Cartner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:02
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B60S3/045
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
347 words
A scraper for removing ice from a smooth surface, said scraper being adapted to be held in the hand of a user and comprising a one piece body having top and bottom surfaces, said body defining: a scraping blade at one end thereof comprising a deflecting surface extending obliquely from said top surface toward said bottom surface, and a scraping edge; a handle section remote from said one end located at the extremity of the body of said scraper, said handle section having a longitudinal axis; and an intermediate section curved to define a concave portion of said bottom surface extending between said blade and handle section below said axis and a convex portion of said top surface extending between said blade and said handle section and projecting below said axis; the transverse dimensions of said body, perpendicular to said axis, being greatest at said blade section and being continuously less toward the end remote therefrom; said scraper being operable during scraping to permit force to be applied longitudinally of a surface to be scraped with the hand of the user remaining substantially spaced from the surface to be scraped, with ice thrown by the deflecting action of said deflecting surface and said convex portion of said top surface being substantially deflected away from said hand of said user, and with said deflecting surface being oblique relative to said surface to be scraper; said handle section, on lateral edges thereof, providing a generally wedge shaped handle configuration operable to progressively resist pushing force imposed on said handle section and directed toward said scraping blade; said convex portion of said top surface being progressively more steeply inclined away from said longitudinal axis of said handle section and operable to provide the greatest resistance to movement of ice over the top surface of said scraper adjacent said scraping blade; said handle section being grippable on the underside thereof adjacent a free end of said handle section; and said intermediate section, or said convex portion of said top surface being substantially free of obstructions to the removal of ice therefrom.
Claim 2
Dependent Claim
347 words
A scraper for removing ice from a smooth surface, said scraper being adapted to be held in the hand of a user and comprising a one piece body having top and bottom surfaces, said body defining: a scraping blade at one end thereof comprising a deflecting surface extending obliquely from said top surface toward said bottom surface, and a scraping edge; a handle section remote from said one end located at the extremity of the body of said scraper, said handle section having a longitudinal axis; and an intermediate section curved to define a concave portion of said bottom surface extending between said blade and handle section below said axis and a convex portion of said top surface extending between said blade and said handle section and projecting below said axis; the transverse dimensions of said body, perpendicular to said axis, being greatest at said blade section and being continuously less toward the end remote therefrom; said scraper being operable during scraping to permit force to be applied longitudinally of a surface to be scraped with the hand of the user remaining substantially spaced from the surface to be scraped, with ice thrown by the deflecting action of said deflecting surface and said convex portion of said top surface being substantially deflected away from said hand of said user, and with said deflecting surface being oblique relative to said surface to be scraper; said handle section, on lateral edges thereof, providing a generally wedge shaped handle configuration operable to progressively resist pushing force imposed on said handle section and directed toward said scraping blade; said convex portion of said top surface being progressively more steeply inclined away from said longitudinal axis of said handle section and operable to provide the greatest resistance to movement of ice over the top surface of said scraper adjacent said scraping blade; said handle section being grippable on the underside thereof adjacent a free end of said handle section; and said intermediate section, or said convex portion of said top surface being substantially free of obstructions to the removal of ice therefrom.
Claim 3
Dependent Claim
25 words
The scraper as set forth in claim 1 wherein said scraping edge is displaced about 16 millimeters from the bottom surface of said handle section.
Claim 4
Dependent Claim
48 words
The scraper as set forth in claim 1 wherein said body defines lateral edges and the edges at the handle portion of said body are inclined relative to said axis at an angle of convergence less than the angle of convergence of the edges of said intermediate section.
Claim 5
Dependent Claim
62 words
The scraper as set forth in claim 1 wherein said blade further defines a chip-resistant scraping surface intersecting with said deflection surface, said scraper being operable during scraping to permit force to be applied longitudinally of said surface to be scraped with said scraping surface being oriented relative to said surface to be scraped at an angle no greater than about 90°.
Claim 6
Dependent Claim
38 words
The scraper as set forth in claim 1 further including a hand grip enveloping said handle section and wherein said handle section further defines grooves in a surface thereof to facilitate mounting and removal of said hand grip.
Claim 7
Dependent Claim
137 words
The scraper as set forth in claim 1 wherein: said body defines lateral edges and said lateral edges at the handle portion of said body are inclined relative to said axis at an angle of convergence less than the angle of convergence of the edges of said intermediate section; said scraping edge is displaced between about 12 and 20 millimeters from the bottom surface of said handle section; said blade section further defines a chip-resistant scraping surface intersecting with said deflecting surface; the angle of intersection between said top surface and said deflecting surface is between about 120° and 160°; the angle of intersection between said deflecting surface and said scraping surface is between about 130° and 170°; and the angle of intersection between said scraping surface and said bottom surface is between about 50° and 90°.
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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) | 1980-08-08 | 1981-02-07 | 1981-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-08 | 1985-02-07 | 1985-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-08 | 1989-02-07 | 1989-08-09 | $7700.00 | Window Closed / Lapsed |