Patent US4227305A successfully refreshed from Google Patents.
US4227305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand tool for cutting blind strips and the like
Assignee: Kirsch Inc
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Filing: 1979-03-12
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Granted: 1980-10-14
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Expires: 1999-03-12
Abstract
Abstract Manually operated tool, primarily a hand tool, for cutting strip elements, more especially, blind strips of Venetian blinds. The tool has cooperating blades. Associated with one of the blades is a feed guide particularly configurated to be adapted to the shape of the strip to be cut for accurate delivery to the blades. Associated with the blades also is a measuring gauge for accurately measuring the amount to be cut off. The blades are especially configurated to be adapted to cut strip material having transverse curvature and further to make a curved cut providing a finished end to the strip being cut.
Inventors
- 👤 Jerry C. Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/266; B; B26; B26B; B26B13/00; B26B13/06; B26B13/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
A tool for cutting blind strips and the like including relatively reciprocatable members, each one of which carries a cutting blade, and means for guiding a strip to be cut to a cutting position, said blade having contoured portions along their length whereby to provide a cut having a corresponding contour at the cut edge of the strip, and guide means to guide said strip accurately to said contoured portions.
Claim 2
Dependent Claim
70 words
A tool for cutting blind strips and the like including relatively reciprocatable members, each one of which carries a cutting blade, and means for guiding a strip to be cut to a cutting position, said blade having contoured portions along their length whereby to provide a cut having a corresponding contour at the cut edge of the strip, and guide means to guide said strip accurately to said contoured portions.
Claim 3
Dependent Claim
28 words
A tool as in claim 1 wherein the said blades are additionally contoured whereby to provide a contour at the cut edge of the strip having beveled corners.
Claim 4
Dependent Claim
42 words
A tool as in claim 1 wherein one of the blades forms an anvil portion carried by one of the members and with which the other blade cooperates, the said anvil having an upward slant toward the cutting edge of the blade.
Claim 5
Dependent Claim
25 words
A tool as in claim 1 wherein the blades have cooperating cutting edges which cooperate with a slicing action when the reciprocatable members are manipulated.
Claim 6
Dependent Claim
26 words
A tool as in claim 1 wherein one of the blades forms an anvil having transverse curvature to accommodate strips to be cut having corresponding curvature.
Claim 7
Dependent Claim
93 words
A tool for cutting blind strips and the like including relatively reciprocatable members, each of one which carries a cutting blade, and a means for guiding a strip to be cut to a cutting position, said blades being mutually contoured whereby to provide a cut having a corresponding contour at the cut edge of the strip, the said blades being additionally contoured whereby to provide a contour at the cut edge of the strip having beveled corners, the cutting blades having mutually engageable cutting surfaces positioned at the extremities of the cutting blades.
Claim 8
Dependent Claim
93 words
A tool for cutting blind strips and the like including relatively reciprocatable members, each of one which carries a cutting blade, and a means for guiding a strip to be cut to a cutting position, said blades being mutually contoured whereby to provide a cut having a corresponding contour at the cut edge of the strip, the said blades being additionally contoured whereby to provide a contour at the cut edge of the strip having beveled corners, the cutting blades having mutually engageable cutting surfaces positioned at the extremities of the cutting blades.
Claim 9
Dependent Claim
35 words
A tool as in claim 6 wherein the mutually engageable guiding surfaces include extending projections on one of the blades and complementary configurated recesses on the other of the blades with which the projections cooperate.
Claim 10
Dependent Claim
40 words
A tool as in claim 7 including a feed guide carried by one of the members positioned to guide a strip to be cut into a position between the blades, the feed guide having side flanges to guide the strip.
Claim 11
Dependent Claim
39 words
A tool as in claim 8 including a measuring gauge carried by one of the members having a scale and an adjustable stop member whereby a strip to cut may be accurately positioned for cutting off a measured amount.
Claim 12
Dependent Claim
68 words
A tool as in claim 1 adapted for cutting strips having a transverse curvature, one of the said blades being contoured to accomodate said curvature, the said blades being complementarily contoured to provide a finished contoured cut across the end of the blade, including bevelled corners, the said guiding surfaces being beyond the cutting portions of the blade and serving to guide the relative movement of the blades.
Claim 13
Dependent Claim
32 words
A tool as in claim 10 wherein one of the blades has extending projections and the other of the blades has complementary configurated recesses to receive the projections on the other blade.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-14 | 1984-04-14 | 1984-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-14 | 1988-04-14 | 1988-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-14 | 1992-04-14 | 1992-10-14 | $7700.00 | Window Closed / Lapsed |