US3604113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knife
Assignee: Individual
•
Filing: 1969-06-04
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Granted: 1971-09-14
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Expires: 1989-06-04
Abstract
Abstract A knife is presented having a removable blade housed in a body which is composed of two pivotally mounted segments. A pivot arm with a locking cam element is mounted on one of the body segments, and a removable blade is mounted on a loop on the other of the body segments. In the operating condition of the knife, the cam of the pivot arm engages the loop to simultaneously lock the body segments together and to also secure the blade in a desired position.
Inventors
- 👤 John F Cuscovitch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:56
CPC Classifications
B; B26; B26B; B26B5/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
260 words
A knife comprising: a first elongated body section, said first body section being provided with a recess in one surface thereof, said recess being adjacent a first end of said first section; a second elongated body section; means pivotally connecting said body sections to each other adjacent the second ends thereof whereby said sections may be moved relative to one another between an open and a working position, said body sections being installed on said connecting means such that said one surface of said first section faces a first surface of said second section when said body sections are in the working position; a projection extending from said first surface of said second body section, said projection being provided with a camreceiving opening and being positioned so as to be received in said recess in said one surface of said first body section; a blade removably mounted on said projection, said blade being supported against said second body section; locking arm means pivotally connected to said first body section adjacent said first end thereof, said locking arm means pivoting between an open and a blade locking position; and locking cam means extending from said locking arm means, said cam means passing through said opening in said projection when said locking arm means is in the locking position and said body sections are in the working position whereby said blade will be locked internally of the body defined by said sections, said blade being held on said projection between said cam means and said first surface of said second body section.
Claim 2
Dependent Claim
260 words
A knife comprising: a first elongated body section, said first body section being provided with a recess in one surface thereof, said recess being adjacent a first end of said first section; a second elongated body section; means pivotally connecting said body sections to each other adjacent the second ends thereof whereby said sections may be moved relative to one another between an open and a working position, said body sections being installed on said connecting means such that said one surface of said first section faces a first surface of said second section when said body sections are in the working position; a projection extending from said first surface of said second body section, said projection being provided with a camreceiving opening and being positioned so as to be received in said recess in said one surface of said first body section; a blade removably mounted on said projection, said blade being supported against said second body section; locking arm means pivotally connected to said first body section adjacent said first end thereof, said locking arm means pivoting between an open and a blade locking position; and locking cam means extending from said locking arm means, said cam means passing through said opening in said projection when said locking arm means is in the locking position and said body sections are in the working position whereby said blade will be locked internally of the body defined by said sections, said blade being held on said projection between said cam means and said first surface of said second body section.
Claim 3
Dependent Claim
40 words
A knife as in claim 1 wherein: said recess in said first body section has two parts, one of said parts being deeper than the other, said deeper part receiving said projection in said assembled position of said body sections.
Claim 4
Dependent Claim
16 words
A knife as in claim 1 further including: an actuating element on said locking arm means.
Claim 5
Dependent Claim
31 words
A knife as in claim 1 further including: a recess in one of said body sections for storing spare blades; and leaf spring means for retaining spare blades in said recess.
Claim 6
Dependent Claim
29 words
A knife as in claim 1 further including: a locking nipple on one of said body sections and a mating locking recess on the other of said body sections.
Claim 7
Dependent Claim
16 words
The knife as in claim 2 further including: an actuating element on said locking arm means.
Claim 8
Dependent Claim
47 words
The knife as in claim 6 further including: a storage recess in the surface of one of said body sections which faces the other body section, said storage recess having a shape complementary to said blade; and spring means for retaining spare blades in said storage recess.
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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |