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 Title: |
US5568993:
Strut structure and rigid joint therefor
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Potzick, James E.; Potomac, MD
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| Assignee: |
The United States of America as represented by the Secretary of Commerce, Washington, DC
other patents from UNITED STATES OF AMERICA, DEPARTMENT OF COMMERCE (597190) (approx. 418)
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| Published / Filed: |
1996-10-29
/ 1994-12-21
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| Application Number: |
US1994000360963
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| IPC Code: |
Advanced:
B23Q 1/54;
B25J 17/02;
F16C 11/06;
F16M 11/12;
G02B 21/24;
G09B 9/12;
Core:
B23Q 1/25;
F16M 11/02;
G09B 9/02;
more...
IPC-7:
F16C 11/04;
F16M 11/14;
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| ECLA Code: |
B23Q1/54B3; B25J17/02B2; F16C11/06; F16M11/12; G02B21/24; G09B9/12;
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| U.S. Class: |
Current:
403/128;
403/090;
403/161;
403/169;
403/217;
Original:
403/128;
403/169;
403/217;
403/090;
403/161;
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| Field of Search: |
359/223,224,225,226,871
052/648.1,649.8,651.01,653.2
033/503
248/157
403/123,122,128,161,162,163,90,169,170,217
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| Priority Number: |
| 1994-12-21 |
US1994000360963 |
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| Abstract: |
A highly rigid structure is provided using six struts connected at three upper and three lower nodes to upper and lower support structures. The joint assemblies are formed by half-spherical balls attached to the ends of each of the struts, and retained within cylindrical apertures, such that the center lines of the struts intersect at the nodes. Bending loads on the struts are thus eliminated, while the design and construction of the structure is substantially simplified.
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| Attorney, Agent or Firm: |
de Angeli, Michael M. ;
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| Primary / Asst. Examiners: |
Knight, Anthony;
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 15 claims |
What is claimed is:
1. A joint assembly for transmitting axial loads from two elongated struts meeting at a node to a supporting member, comprising:
- two strut end members, one connected to each of the struts, for receiving axial loads from the corresponding strut, each strut end member comprising a half-spherical ball having a planar surface for contacting the planar surface of the other of said balls, such that an assembly of said two strut end members defines a substantially complete sphere, the centerlines of said elongated struts intersecting at the center of said substantially complete sphere, and
- means fixed with respect to said supporting member and defining a recess having a circular periphery, for receiving and retaining said substantially complete sphere defined by the assembly of said two strut end members.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 10 U.S. patent(s) that reference this one
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