Patent DE438251C successfully refreshed from Google Patents.
Patent US4993093A successfully refreshed from Google Patents.
US4993093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-purpose utility knife for precision measuring
Assignee: WILD BILL'S Inc
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Filing: 1989-11-16
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Granted: 1991-02-19
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Expires: 2009-11-16
Abstract
Abstract By providing a utility knife with an elongated slot which is formed in the housing thereof and longitudinally extends in the same plane as the cutting blade, a multipurpose utility knife is achieved which is capable of being cooperatingly employed with any conventional flexible ruler or measuring tape for attaining precise measurements for accurate blade cutting. By employing the present invention, the angled tip or leader of a conventional flexible ruler is securely retained within the elongated slot, thereby enabling accurate, directly measured positioning of the blade for cutting.
Inventors
- 👤 Brian L. Goldwitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:51
CPC Classifications
B; B26; B26B; B26B11/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
141 words
A utility knife incorporating A. a housing; B. a cutting blade a. retainingly engaged with the housing, and b. having a cutting edge formed thereon, said cutting edge lying in and establishing a cutting edge plane; and C. an elongated slot a. formed in one surface of the housing b. positioned in juxtaposed, spaced, aligned relationship with the cutting edge plane defined by the cutting edge of the cutting blade, and c. having at least one edge thereof aligned with and lying substantially in the cutting edge plane defined by the cutting edge of the cutting blade and having a length whereby the utility knife can quickly and easily securely retain the leading edge of a measuring tape for positioning the measuring tape in precise, direct, aligned relationship with the cutting edge of the cutting blade for attaining direct measurement therewith.
Claim 2
Dependent Claim
141 words
A utility knife incorporating A. a housing; B. a cutting blade a. retainingly engaged with the housing, and b. having a cutting edge formed thereon, said cutting edge lying in and establishing a cutting edge plane; and C. an elongated slot a. formed in one surface of the housing b. positioned in juxtaposed, spaced, aligned relationship with the cutting edge plane defined by the cutting edge of the cutting blade, and c. having at least one edge thereof aligned with and lying substantially in the cutting edge plane defined by the cutting edge of the cutting blade and having a length whereby the utility knife can quickly and easily securely retain the leading edge of a measuring tape for positioning the measuring tape in precise, direct, aligned relationship with the cutting edge of the cutting blade for attaining direct measurement therewith.
Claim 3
Dependent Claim
21 words
The utility knife defined in claim 1, wherein said cutting blade is further defined as being movable relative to the housing.
Claim 4
Dependent Claim
35 words
The utility knife defined in claim 1, wherein said cutting blade is further defined as comprising a substantially flat member with the cutting edge lying in the same plane as the body of the blade.
Claim 5
Dependent Claim
41 words
The utility knife defined in claim 3, wherein said elongated slot is further defined as being formed in the top surface of the housing, extending in substantially the identical plane as the plane in which the cutting blade is movably positioned.
Claim 6
Dependent Claim
181 words
A utility knife incorporating A. a housing; B. a cutting blade a. retainingly engaged with the housing b. comprising a substantially flat member having a cutting edge formed thereon, and c. movable between at least a first retained position, wherein said blade is fully contained within the housing, and a second exposed position, wherein a substantial portion of the cutting edge of the blade extends outwardly from the housing; and C. an elongated slot a. formed in the top surface of the housing, b. positioned in juxtaposed, spaced, aligned relationship with the cutting edge of the cutting blade, c. extending in substantially the identical plane as the plane in which the cutting blade is positioned, and d. having at least one edge thereof aligned in substantially the same plane as the cutting edge of the cutting blade and having a length whereby the utility knife can quickly and easily securely retain the leading edge of a measuring tape for positioning the measuring tape in precise, direct, aligned relationship with the cutting edge of the cutting blade for attaining direct measurement therewith.
Claim 7
Dependent Claim
181 words
A utility knife incorporating A. a housing; B. a cutting blade a. retainingly engaged with the housing b. comprising a substantially flat member having a cutting edge formed thereon, and c. movable between at least a first retained position, wherein said blade is fully contained within the housing, and a second exposed position, wherein a substantial portion of the cutting edge of the blade extends outwardly from the housing; and C. an elongated slot a. formed in the top surface of the housing, b. positioned in juxtaposed, spaced, aligned relationship with the cutting edge of the cutting blade, c. extending in substantially the identical plane as the plane in which the cutting blade is positioned, and d. having at least one edge thereof aligned in substantially the same plane as the cutting edge of the cutting blade and having a length whereby the utility knife can quickly and easily securely retain the leading edge of a measuring tape for positioning the measuring tape in precise, direct, aligned relationship with the cutting edge of the cutting blade for attaining direct measurement therewith.
Claim 8
Dependent Claim
30 words
The utility knife defined in claim 5, wherein said movable blade is controllably moved between its two alternate positions by control means mounted to the top surface of the housing.
Claim 9
Dependent Claim
33 words
The utility knife defined in claim 6, wherein said elongated slot is further defined as being positioned between the control means and the portal through which the movable blade extends from the housing.
Claim 10
Dependent Claim
73 words
The utility knife defined in claim 7, wherein said slot is further defined as being substantially long and narrow, formed with two elongated, juxtaposed, spaced facing side edges being substantially flat, and with the spaced distance therebetween being greater than the thickness of the angle plate of a measuring tape, thereby allowing the angle plate of the measuring tape to be quickly and easily securely engaged within said slot for secure retention therein.
Claim 11
Dependent Claim
53 words
The utility knife defined in claim 8, wherein said elongated slot is positioned in spaced alignment with the top edge of the cutting blade with said spaced distance being sufficient to assure that the angle plate of the measuring tape when positioned therein, does not interfere with the movement of the cutting blade.
References Cited (Backward Citations)
US2952025A
Cited
US4255856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-02-18 | 1994-08-20 | 1995-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-18 | 1998-08-20 | 1999-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-18 | 2002-08-20 | 2003-02-19 | $7700.00 | Window Closed / Lapsed |