Patent US4070023A successfully refreshed from Google Patents.
US4070023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nunchaku
Assignee: STRONG DESIGN RES AND SALES CORP
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Filing: 1976-07-23
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Granted: 1978-01-24
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Expires: 1996-07-23
Abstract
Abstract First and second hollow metal members are innerconnected by a rope for use by police, military, and students of martial arts. The rope may be of wire or nylon and is freely slideable with respect to one of the metal members while being freely rotatable with respect to said one member.
Inventors
- 👤 Jerome J. Cutler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:56
CPC Classifications
F; F41; F41B; F41B15/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
140 words
A hand weapon comprising first and second hollow members of metal, said metal members having transverse perforations, a discrete threaded adapter threaded in one end of each of said members, the transverse dimensions of said adapters being not greater than the transverse dimensions of their associated metal member, each adapter having a central bore, a flexible member extending through said bores and interconnecting said metal members, means associated with the free ends of said flexible member for preventing the flexible member from being withdrawn through the bore of its associated adapter, means associated with one end portion of said flexible member and its hollow metal member for adjusting the length of the flexible member exposed between said adapters, the exposed end portion of said adapters being conical or semispherical, and said metal members having a plurality of flat faces thereon.
Claim 2
Dependent Claim
140 words
A hand weapon comprising first and second hollow members of metal, said metal members having transverse perforations, a discrete threaded adapter threaded in one end of each of said members, the transverse dimensions of said adapters being not greater than the transverse dimensions of their associated metal member, each adapter having a central bore, a flexible member extending through said bores and interconnecting said metal members, means associated with the free ends of said flexible member for preventing the flexible member from being withdrawn through the bore of its associated adapter, means associated with one end portion of said flexible member and its hollow metal member for adjusting the length of the flexible member exposed between said adapters, the exposed end portion of said adapters being conical or semispherical, and said metal members having a plurality of flat faces thereon.
Claim 3
Dependent Claim
22 words
A device in accordance with claim 1 wherein said hollow metal members are aluminum and have a length of approximately 1 foot.
Claim 4
Dependent Claim
32 words
A device in accordance with claim 1 wherein said flexible member is in the form of a cable made from a material selected from the group consisting of steel, aluminum and nylon.
Claim 5
Dependent Claim
25 words
A device in accordance with claim 1 wherein the other end portion of said flexible member is freely rotatable with respect to its associated member.
Claim 6
Dependent Claim
49 words
A device in accordance with claim 1 wherein said adjusting means includes a transverse pin and spaced sets of holes in the associated hollow metal member, said pin being received in one of said sets of holes and being coupled to said one end portion of said flexible member.
Claim 7
Dependent Claim
21 words
A weapon in accordance with claim 1 wherein said exposed portion of said flexible member is less than about 5 inches.
Claim 8
Independent Claim
124 words
A device comprising first and second hollow members of rigid metal, each of said metal members having a bore at one end thereof, a rope extending through said bores and interconnecting said members, each end of said rope terminating within one of said metal members, at least one end portion of said rope being freely slideable with respect to its metal members so that the distance between the bore ends of said metal members may be decreased, means associated with ends of said rope to limit the extent of the distance between said bore ends of said metal members, and said metal members being provided with staggered sets of holes therethrough in a direction generally perpendicular to the longitudinal axes of said metal members.
Claim 9
Independent Claim
124 words
A device comprising first and second hollow members of rigid metal, each of said metal members having a bore at one end thereof, a rope extending through said bores and interconnecting said members, each end of said rope terminating within one of said metal members, at least one end portion of said rope being freely slideable with respect to its metal members so that the distance between the bore ends of said metal members may be decreased, means associated with ends of said rope to limit the extent of the distance between said bore ends of said metal members, and said metal members being provided with staggered sets of holes therethrough in a direction generally perpendicular to the longitudinal axes of said metal members.
Claim 10
Independent Claim
118 words
A device comprising first and second hollow members of rigid metal, each of said metal members having a bore at one end thereof, a rope extending through said bores and interconnecting said members, each end of said rope terminating within one of said metal members, at least one end portion of said rope being freely slideable with respect to its metal members so that the distance between the bore ends of said metal members may be decreased, means associated with ends of said rope to limit the extent of the distance between said bore ends of said metal members, and said metal members being of a lightweight metallic material which is rectangular in cross section with beveled corners.
Claim 11
Independent Claim
118 words
A device comprising first and second hollow members of rigid metal, each of said metal members having a bore at one end thereof, a rope extending through said bores and interconnecting said members, each end of said rope terminating within one of said metal members, at least one end portion of said rope being freely slideable with respect to its metal members so that the distance between the bore ends of said metal members may be decreased, means associated with ends of said rope to limit the extent of the distance between said bore ends of said metal members, and said metal members being of a lightweight metallic material which is rectangular in cross section with beveled corners.
Claim 12
Independent Claim
131 words
A device comprising first and second members of hollow aluminum, said members having tarnsverse perforations, said members having a length of approximately 1 foot, a discrete threaded adaptor in one end of each of said members, each adaptor having a central bore, a rope extending through said bores and innerconnecting said metal members, each end of said rope terminating within one of said metal members, one end portion of said rope being freely rotatable and slideable with respect to the first metal member, the other end portion of said rope being adjustably connected to said second metal member, and means associated with each end portion of said rope to limit the maximum extent of the distance between said adaptors to thereby define the extent of the exposed portion of said rope.
Claim 13
Independent Claim
131 words
A device comprising first and second members of hollow aluminum, said members having tarnsverse perforations, said members having a length of approximately 1 foot, a discrete threaded adaptor in one end of each of said members, each adaptor having a central bore, a rope extending through said bores and innerconnecting said metal members, each end of said rope terminating within one of said metal members, one end portion of said rope being freely rotatable and slideable with respect to the first metal member, the other end portion of said rope being adjustably connected to said second metal member, and means associated with each end portion of said rope to limit the maximum extent of the distance between said adaptors to thereby define the extent of the exposed portion of said rope.
Claim 14
Dependent Claim
65 words
A device in accordance with claim 9 wherein the juxtaposed ends of said adaptors are generally semi-spherical, the outer diameter of each adaptor being threaded to the inner diameter of its associated metal member, the total effective length of said rope being approximately equal to the length of said first member, and the perforations on adjacent faces of said first and second members being staggered.
References Cited (Backward Citations)
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Cited
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Cited
US3608899A
Cited
GB1217867A
Cited
US3730544A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-23 | 1981-07-25 | 1982-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-23 | 1985-07-25 | 1986-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-23 | 1989-07-25 | 1990-01-24 | $7700.00 | Window Closed / Lapsed |