IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0315958
(2002-12-11)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
5 |
초록
▼
A construction of benders is disclosed in which benders of single and double lengths are conjoined in a particular manner, which results in constructions in which objects can be rotated but not translated. Three constructions are detailed, one in which an object is rotated over two unit angles alpha
A construction of benders is disclosed in which benders of single and double lengths are conjoined in a particular manner, which results in constructions in which objects can be rotated but not translated. Three constructions are detailed, one in which an object is rotated over two unit angles alpha, whereas a second construction is disclosed whereby an object is rotated over four unit angles alpha, while a third construction is disclosed in which an object is rotated over eight unit angles alpha. An example is disclosed in which the repeated application of identical units will result in larger rotation angles, still without causing translation.
대표청구항
▼
What is claimed is: 1. A construction consisting of (a) a first bender of a predetermined length with a predetermined curvature, with a first end and a second end, of which the first end is rigidly clamped and the second end is free to move, whereas connected laterally to the second end of the firs
What is claimed is: 1. A construction consisting of (a) a first bender of a predetermined length with a predetermined curvature, with a first end and a second end, of which the first end is rigidly clamped and the second end is free to move, whereas connected laterally to the second end of the first bender is (b) a second bender with a length equal to substantially twice the length of the first bender whereas its curvature is the opposite of that of the first bender, this second bender having a first and second end, where the first end of the second bender is rigidly attached to said second end of said first bender while said second end of said second bender is free to move, whereas connected laterally to the second end of the second bender is (c) a third bender with a length, substantially equal to the same predetermined length as said first bender while it has the same curvature as the first bender, said third bender having a first end and a second end, while said first end of said third bender is rigidly attached to said second end of said second bender, and said second end of said third bender is free to move. 2. The construction of three benders with predetermined lengths as in claim 1, in which (a) the first bender has a predetermined curvature, (b) the second bender is a rigid body without curvature (c) the third bender has the same predetermined curvature as the first bender. 3. A construction consisting of two units, each unit made up of the construction of claim 1, said two units arranged as mirror images of each other, whereas the tips of the third benders of said two units are connected by a body which can undergo rotation. 4. The construction of claim 1 augmented with a second and identical construction, whereby the first bender of the second construction forms an extension of the third bender of the first unit, such that the merged union of the third bender of the first unit with the first bender of the second unit has the same predetermined length as the second bender of the first unit. 5. A rotation device consisting of a construction of two units as in claim 4, whereby said two units are mirror images of each other with respect to a mirror plane, said plane intersecting an object that is suspended from the third benders of both units, such an object being rotatable and undergoing rotation without translation. 6. A construction consisting of two units, each unit made up of the construction of claim 2, said two units arranged as mirror images of each other, whereas the tips of the third benders of said two units are connected by a body which can undergo rotation. 7. The construction of claim 2 augmented with a second and identical construction, whereby the first bender of the second construction forms an extension of the third bender of the first unit, such that the merged union of the third bender of the first unit with the first bender of the second unit has the same predetermined length as the second bender of the first unit. 8. A rotation device consisting of a construction of two units as in claim 7, whereby said two units are each other's mirror images with respect to a mirror plane, said plane intersecting an object that is suspended from the third benders from the second units, such an object being rotatable and undergoing rotation without translation. 9. The construction of claim 1, whereby the construction is fabricated using micro-electromechanical systems fabrication methods. 10. The construction of claim 1, whereby said benders are piezoelectrically actuated bending elements. 11. The construction of claim 1 whereby the construction is fabricated using piezoelectric materials. 12. The construction of claim 1 whereby the construction is fabricated from piezoelectric PZT. 13. The construction of claim 1 whereby said benders consist of a layer of piezoelectric material on a nonpiezoelectric substrate. 14. The construction of claim 1 whereby layers of differently polarized piezoelectric materials are used. 15. The construction of claim 1 whereby said benders consist of a piezoelectric material on silicon. 16. The construction of claim 1 whereby the bender consist of a piezoelectric material on silicon, whereas the piezoelectric material is any material from the following groups of materials: (a) The homologs of polyvinylidene fluoride, (b) The materials made up from the so called II-VI elements, (c) The materials made up from the so called III-V elements (d) Ferroelectric Relaxor materials (e) Electrostrictive materials (f) Perovskites (g) Homologs of Rochelle Salt (h) Homologs of Ethylene Diamine Tartrate (i) Homologs of Ammonium Dihydrogen Sulphate (j) Homologs of Quartz. 17. The construction of claim 1 whereby said benders are bending elements actuated by shape memory alloys. 18. The construction of claim 1 whereby said benders are bending elements actuated by electrostatic forces. 19. The construction of claim 1 whereby said benders are bending elements actuated magnetically. 20. The construction of claim 1 whereby said benders are bending elements actuated thermally by heating of bending elements comprised of materials with unequal thermal expansion coefficients. 21. The construction of claim 1 whereby said benders are bending elements actuated thermally by non uniform heating of bending elements. 22. The construction of claim 1 whereby said benders are bending elements actuated by non-piezoelectric electrostrictive materials.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.