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Wall scraper

A scraper and scraper technology, which is used in cleaning carpets, household utensils, cleaning machinery, etc.

Inactive Publication Date: 2011-02-09
AMERICAN SAFETY RAZOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantageously, this fixed angle is not always very suitable for the user (for example, if the user is left-handed) or for a particular workplace, in which case a larger or smaller angle may be required to improve scraping Effectiveness and / or efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The scraper according to the invention solves the drawbacks of conventional wall scrapers having a fixed angle with respect to the handle. The present invention provides a scraper with an adjustable scraper head whose angle relative to the handle can be varied to suit the user and / or job. The scraper of the present invention also has a textured grip for better control in the user's hand, and storage space for extra blades to be stored in the handle.

[0019] now refer to figure 2 , the wall scraper 10 according to the invention has a tubular metal handle 11 with a compression molded rear grip 11 a and an end cap 26 . In a particular embodiment, the handle 11 has an oval cross-section. A scraper head assembly 15 holds a blade 17, such as a standard 4" scraper blade, between metal head halves 16, 18. A handle 12 is provided on the scraper head assembly 15, wherein the scraper head assembly 15 has a compression molded grip 12a for better control and application of press...

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PUM

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Abstract

A scraper, such as a wall scraper using a standard replaceable blade, is provided with an adjustable scraper head for changing the attack angle of the blade to suit the user and / or the job. Embodiments include a scraper having an elongated handle and a scraper head for fixedly holding a blade, the scraper head being pivotably mounted to an end of the handle for positioning the scraper head at a selected angle to the handle. A lock, engageable with the handle and the scraper head, fixes the scraper head at the selected angle. The lock has a knob for gripping the scraper, and the handle has a rear grip, thus allowing the user greater control of the scraper.

Description

[0001] related application [0002] This application claims priority to US Provisional Patent Application No. 61 / 006,754, filed January 30, 2008, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to scrapers. The invention is particularly applicable to wall scrapers with replaceable blades. Background technique [0004] Wall scrapers, also known as wall strippers, are used to remove paint, wallpaper, etc. from walls. They are typically used with both hands. All of these scrapers provide a grip on the rear of the handle and some have a handle on the front of the housing to provide additional grip. As shown in Figure 1, a typical conventional design uses standard replaceable blades, such as a 4” cutout blade held in place on the scraper head by screws and clamps that match the scraper head. The scraper head is positioned at an angle Be fixed to the handle, to adapt to right-handed users.Unfavorably, this fixed...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B44D3/16
CPCA47L13/022A47L13/08B44D3/164
Inventor 加里·E·范德尔森理查德·M·奥格雷迪大卫·W·凯瑟
Owner AMERICAN SAFETY RAZOR CO