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 Title: |
US4870712:
Ice/snow scraping system
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Markus, Franklyn M.; Cote St. Luc, P.Q., Canada
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| Assignee: |
None
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| Published / Filed: |
1989-10-03
/ 1988-06-03
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| Application Number: |
US1988000202743
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| IPC Code: |
Advanced:
A47L 1/16;
B60S 3/04;
Core:
more...
IPC-7:
B60S 3/00;
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| U.S. Class: |
Current:
015/227;
015/236.02;
Original:
015/227;
015/236.02;
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| Field of Search: |
015/236.2,405,111,227
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| Priority Number: |
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| Abstract: |
An ice/snow scraping system includes a ribbed grip handle, shielded from ice, snow and moisture by a sleeve which is open at the rear, and a removeable scraper head. The head includes a downward biased portion incorporating the scraper's edge to provide optimum scraping angle while safely spacing the handle from the ice, strengthening ribs positioned for resistance to torque and thrust forces, and a strip of raised serrations for abraiding the ice. Mating abutments on the head and handle transfer torque and thrust back to the handle. Pin interlock resists accidental disassembly. The scraper head abutment is shaped to protect the sleeve-to-handle seal from run off when the system is hung by a mounting hole provided in the biased portion.
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| Attorney, Agent or Firm: |
Sutton, Paul J. ;
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| Primary / Asst. Examiners: |
Moore, Chris K.;
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| Maintenance Status: |
E1 Expired Check current status
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Parent Case: |
This is a continuation of application Ser. No. 06/906,479 filed June 12, 1986 now U.S. Pat. No. 4,748,711, issued June 7, 1988.
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| Family: |
Show 2 known family members
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| Claim |
What is claimed is:
1. An ice/snow scraping system which comprises:
- a handle having a front end, a back end and a reference centerline,
- a first abutment on a front end of the handle, a key hole located in a forward face of the abutment for receiving a key post,
- a scraper head having a front edge, a top surface, a bottom surface, a back end and a reference centerline,
- a key post at said back end of the scraper head, extending along its reference centerline, and shaped for substantially close fit with respect to said keyhole,
- a second abutment located between said back end and said front edge for substantial mating engagement with the first abutment upon the post being inserted into the key hole,
- said front edge comprising a substantially rigid edge for scraping of ice or snow and extending at an angle with respect to the scraper head's reference centerline,
- a forward portion of the head being biased such that a reference plane which includes the front edge forms an acute angle with respect to the reference centerline, a plurality of raised serrations located on the top of the scraper on the biased portion for use in abrading,
- a substantially flexible sleeve which encloses a portion of the handle and sealingly disposed around the handle behind the first abutment and being formed with an opening giving the user hand access to the back of the handle and providing sufficient space about said handle to permit hand holding thereof from within the sleeve,
- said first abutment being substantially V-shaped and positioned with the apex of the V located substantially on the centerline of the handle and the second abutment being V-shaped;
- said handle including a relatively constricted neck portion located behind and relatively close to the first abutment in the region where the sleeve makes seal with the handle;
- said sleeve being shaped such that the width of said opening being greater than the width of said handle where they are in joining contact.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 7 U.S. patent(s) that reference this one
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