US3726010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpet cutter
Assignee: Individual
•
Filing: 1971-04-13
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Granted: 1973-04-10
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Expires: 1991-04-13
Abstract
Abstract A carpet cutter has a body having a handle or grip in the upper part thereof, and a blade which is retentively secured in such a manner that its position is variable, if necessary, within a range of positions from the front face of the handle or grip to the front face of the body. The blade is provided with an edge on a lateral side thereof. The underside of the body is a plane making an acute angle in relation to the edge of the blade. The front end of the blade is adapted to be upwardly protrudable beyond the front edge of the underside of the body.
Inventors
- 👤 K Yokoyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:58
CPC Classifications
B; B26; B26B; B26B5/00; B26B5/001; B26B5/002; B26B29/00; B26B29/02; B26B5/005
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
A carpet cutter comprising a body consisting of a base having a substantially square plane surface on the underside thereof and a handle formed integrally with said base on the upper portion thereof, the front face of said body having a channel therein, a blade guide frame secured to said channel, said blade guide frame having a groove on both sides thereof, a blade slidably mounted in said grooves at an acute angle to the plane surface on the underside of said base, a slide box slidably mounted in said grooves and connected with the upper portion of said blade, and a detent projection on said slide box, the inwardly facing edge of one of said grooves having a plurality of notches at a predetermined pitch therealong, said detent projection being engageable securely and disengageably in said notches during movement of said slide box along said guide frame, whereby said blade can be extended beyond or retracted from the front edge of said base.
Claim 2
Dependent Claim
164 words
A carpet cutter comprising a body consisting of a base having a substantially square plane surface on the underside thereof and a handle formed integrally with said base on the upper portion thereof, the front face of said body having a channel therein, a blade guide frame secured to said channel, said blade guide frame having a groove on both sides thereof, a blade slidably mounted in said grooves at an acute angle to the plane surface on the underside of said base, a slide box slidably mounted in said grooves and connected with the upper portion of said blade, and a detent projection on said slide box, the inwardly facing edge of one of said grooves having a plurality of notches at a predetermined pitch therealong, said detent projection being engageable securely and disengageably in said notches during movement of said slide box along said guide frame, whereby said blade can be extended beyond or retracted from the front edge of said base.
Claim 3
Dependent Claim
107 words
A carpet cutter as claimed in claim 1, wherein said handle has a slot therethrough in the center of said channel and a threaded hole in the upper portion of said handle on one side of said slot opening into said slot and a bolt hole in the portion of the handle on the other side of the slot and aligned with said threaded hole, a bolt threaded into said threaded hole through said bolt hole, and a blade casing having said blade guide frame secured therein and fitted into said channel, whereby said blade casing can be releasably clamped in said channel by rotating said bolt.
Claim 4
Dependent Claim
68 words
A carpet cutter as claimed in claim 2, wherein said base has a threaded hole extending therethrough from the underside of said base to the bottom of said channel and a bolt is threaded into said threaded hole and contacts the lower terminal portion of said blade casing, whereby the blade is adjustable in the forward direction of the front edge of said base by rotating said bolt.
Claim 5
Dependent Claim
37 words
A carpet cutter as claimed in claim 1, wherein said blade has a plurality of grooves thereacross at a predetermined pitch to make possible breaking off portions of the blade the edge of which has become dull.
Claim 6
Dependent Claim
38 words
A carpet cutter as claimed in claim 1, wherein a further resilient projection is provided on the opposite side of said slide box from said detent projection and pressing against the other inwardly facing edge of said groove.
References Cited (Backward Citations)
US1327155A
Cited
US3316635A
Cited
US3314148A
Cited
US3395453A
Cited
US3448518A
Cited
US3530579A
Cited
US3621573A
Cited
US3581397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |