Patent US4153498A successfully refreshed from Google Patents.
Patent US4067656A successfully refreshed from Google Patents.
US4067656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint member
Assignee: Individual
•
Filing: 1975-10-20
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Granted: 1978-01-10
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Expires: 1995-10-20
Abstract
Abstract A threaded joint member for connecting two sections of a decorative pole assembly, of knock-down type furniture or the like has a sleeve with an outer thread adapted to be received in an inner thread at the end of one section of the assembly. The sleeve is secured to another section of the assembly so that a limited pivotal movement of the sleeve can be effected on applying an extreme force in the same direction as that in which the two sections have to be turned relative to each other to establish a strong abutment connection between same. The invention thus provides for a simple alignment of the surfaces of the two adjacent sections by partly turning one with respect to the other, without decreasing the strength of the connection.
Inventors
- 👤 Edward F. Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:30
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/44; F16B12/48; A; A47; A47B; A47B96/00; A47B96/14; A47B96/1425; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/556
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
294 words
Elements for knock-down type furniture comprising a first element having an elongated body of symmetrical cross-section with planar side surfaces and two flat end surfaces, a second element having an elongated body with two flat end surfaces and a generally symmetrical cross-section adjacent at least one end thereof with planar side surfaces, the flat end surfaces of both elements being perpendicular to the axes of their respective elements; means for interconnecting said elements in an end-to-end relationship so that the side planar surfaces of the first element are in a desired alignment with the side planar surfaces of the second element, said means comprising: a. a bore extending through the medial portion of the first element, said bore having an unthreaded opening through one flat end surface thereof and a larger diameter opening through the other flat end surface thereof, the larger diameter opening having internal threads of truncated profile; b. an opening in each flat end of the second element, each opening having internal threads of truncated profile; c. a coupling means between said first and second elements comprising a sleeve having external truncated threads of a diameter less than that of the internal truncated threads of the second element and loosely threaded into one end of the second element so as to have no diametrical interference fit, said sleeve having an internal machine-screw thread, a machine-screw extending through the small diameter unthreaded opening of the first element and threaded into the machine screw threads of the sleeve, the flat ends of the end-to-end connected elements being adapted to be held in tight frictionally abutted relationship by said coupling means while the side planar surfaces of both elements can be aligned in the desired fashion prior to final tightening of the machine screw.
Claim 2
Dependent Claim
294 words
Elements for knock-down type furniture comprising a first element having an elongated body of symmetrical cross-section with planar side surfaces and two flat end surfaces, a second element having an elongated body with two flat end surfaces and a generally symmetrical cross-section adjacent at least one end thereof with planar side surfaces, the flat end surfaces of both elements being perpendicular to the axes of their respective elements; means for interconnecting said elements in an end-to-end relationship so that the side planar surfaces of the first element are in a desired alignment with the side planar surfaces of the second element, said means comprising: a. a bore extending through the medial portion of the first element, said bore having an unthreaded opening through one flat end surface thereof and a larger diameter opening through the other flat end surface thereof, the larger diameter opening having internal threads of truncated profile; b. an opening in each flat end of the second element, each opening having internal threads of truncated profile; c. a coupling means between said first and second elements comprising a sleeve having external truncated threads of a diameter less than that of the internal truncated threads of the second element and loosely threaded into one end of the second element so as to have no diametrical interference fit, said sleeve having an internal machine-screw thread, a machine-screw extending through the small diameter unthreaded opening of the first element and threaded into the machine screw threads of the sleeve, the flat ends of the end-to-end connected elements being adapted to be held in tight frictionally abutted relationship by said coupling means while the side planar surfaces of both elements can be aligned in the desired fashion prior to final tightening of the machine screw.
Claim 3
Dependent Claim
31 words
The elements of claim 1 in which the ratio of the maximum external diameter of the sleeve to the minimum external diameter of its flat end surface is at least 2:1.
Claim 4
Dependent Claim
256 words
Elements for knock-down type furniture comprising a first element having an elongated body of symmetrical cross-section with planar side surfaces and two flat end surfaces, a second element having an elongated body with two flat end surfaces and a generally symmetrical cross-section adjacent at least one end thereof with planar side surfaces, the flat end surfaces of both elements being perpendicular to the axes of their respective elements; means for interconnecting said elements in an end-to-end relationship so that the side planar surfaces of the first element are in a desired alignment with the side planar surfaces of the second element, said means comprising: a. a bore extending through the medial portion of the first element, said bore having an unthreaded opening through one flat end surface thereof and a larger diameter opening through the other flat end surface thereof, the larger diameter opening having internal threads of truncated profile; b. an opening in each flat end of the second element, each opening having internal threads of truncated profile; c. a coupling member between said first and second elements having external truncated threads of a diameter less than that of the internal threads and loosely threaded therein so as to have no diametrical interference fit, said coupling member having two axially aligned similarly threaded portions rotatably mounted on a shaft with relatively high friction therebetween so that they are in fixed axial relationship but can be forcibly rotated relative to each other to obtain desired alignment of the planar surfaces of the elements in end-to-end relationship.
Claim 5
Dependent Claim
256 words
Elements for knock-down type furniture comprising a first element having an elongated body of symmetrical cross-section with planar side surfaces and two flat end surfaces, a second element having an elongated body with two flat end surfaces and a generally symmetrical cross-section adjacent at least one end thereof with planar side surfaces, the flat end surfaces of both elements being perpendicular to the axes of their respective elements; means for interconnecting said elements in an end-to-end relationship so that the side planar surfaces of the first element are in a desired alignment with the side planar surfaces of the second element, said means comprising: a. a bore extending through the medial portion of the first element, said bore having an unthreaded opening through one flat end surface thereof and a larger diameter opening through the other flat end surface thereof, the larger diameter opening having internal threads of truncated profile; b. an opening in each flat end of the second element, each opening having internal threads of truncated profile; c. a coupling member between said first and second elements having external truncated threads of a diameter less than that of the internal threads and loosely threaded therein so as to have no diametrical interference fit, said coupling member having two axially aligned similarly threaded portions rotatably mounted on a shaft with relatively high friction therebetween so that they are in fixed axial relationship but can be forcibly rotated relative to each other to obtain desired alignment of the planar surfaces of the elements in end-to-end relationship.
Claim 6
Dependent Claim
22 words
The elements of claim 3 in which there is thin washer between the two axially aligned threaded portions of the coupling member.
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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) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |