Scraping tool

Abstract

A manually operated scraper tool includes a handle that seats a blade retaining component that freely and rotatably holds a substantially circular cutting blade thereto. An alternate attachment embodiment of the scraper tool includes a tool receiving body, rather than a handle, that may be received and driven by a power tool.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates generally to a scraping tool and, more particularly, to a scraping tool that may be utilized, for example, to scrape cylinder heads and blocks of engines to remove gasket or contaminate material from a generally planar surface. [0002] When repairing an automobile engine, it is often necessary to replace the gaskets and seals, which are used at the interface of the component parts of an engine to effect a seal between the parts. For example, when the cylinder head is removed for access to the pistons for repair or other purposes, it is usually necessary to scrape the old gasket from the cylinder head as well as the block surface so that a new gasket may be positioned thereon. Generally, the surfaces to be scraped are flat, planar surfaces. [0003] Various types of scraping tools have been used in the past to scrape such materials. Known prior art tools typically comprise a rigid scraper blade fixedly attached to a rigid handle ...

AI Technical Summary

Benefits of technology

[0013] Briefly, the present invention comprises a scraper tool 10 that includes a handle 12 that seats a blade retaining component 20, such as a flat head screw, that freely and rotatably holds a substantially circular cutting blade 16. The blade 16 is especially useful for removing gasket material or other contaminants from a work surface. The blade 16 may catch when an impediment is encountered so as to rotate about the impediment and thus minimize damage or gouging of the surface being cleaned.

Problems solved by technology

While such prior art devices are generally effective, the fixed blade configurations of known devices are susceptible to catching or “hanging up” during use.

When such a rigid blade catches on either the gasket being removed or on the surface being cleaned, there is a risk that the surface being cleaned may be undesirably nicked, scratched or chipped.

Such a damaged surface with scrapes or other imperfections may give rise to the undesirable situation where it is more difficult to achieve effective seals between components upon reassembly.

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