IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0928932
(2001-08-14)
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발명자
/ 주소 |
- Kovacik, James D.
- Blanch, Paul S.
- Smith, Joseph J.
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출원인 / 주소 |
- Alert Safety Lite Products Co., Inc.
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대리인 / 주소 |
MacMillan, Sobanski & Todd, LLC
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인용정보 |
피인용 횟수 :
10 인용 특허 :
12 |
초록
▼
A rotatable hook mount apparatus for suspending a utility light includes a first locking member attached to a light guard of the utility light and a second locking member attached to a shaft portion of a hook. The shaft portion is rotatably received in a bore formed in the first locking member. Adja
A rotatable hook mount apparatus for suspending a utility light includes a first locking member attached to a light guard of the utility light and a second locking member attached to a shaft portion of a hook. The shaft portion is rotatably received in a bore formed in the first locking member. Adjacent faces of the locking members have cooperating teeth for preventing relative rotation. A spring biases the teeth into engagement and the second locking member with the attached hook can be moved against the spring bias to disengage the teeth for rotation of the hook relative to the light guard.
대표청구항
▼
A rotatable hook mount apparatus for suspending a utility light includes a first locking member attached to a light guard of the utility light and a second locking member attached to a shaft portion of a hook. The shaft portion is rotatably received in a bore formed in the first locking member. Adja
A rotatable hook mount apparatus for suspending a utility light includes a first locking member attached to a light guard of the utility light and a second locking member attached to a shaft portion of a hook. The shaft portion is rotatably received in a bore formed in the first locking member. Adjacent faces of the locking members have cooperating teeth for preventing relative rotation. A spring biases the teeth into engagement and the second locking member with the attached hook can be moved against the spring bias to disengage the teeth for rotation of the hook relative to the light guard. n in a second direction opposite to the first direction, and allowing the air flow slot to open when the control surface is pivoted away from the neutral position in the first direction. 3. The airfoil assembly of claim 2, wherein the panel is pivotally connected to the fixed airfoil and is biased to seal against the control surface when the control surface is in the neutral position thereof and when the control surface is pivoted in the second direction away from the neutral position. 4. The airfoil assembly of claim 1, wherein the pivot for the control surface is located inside an external aerodynamic contour of the fixed airfoil. 5. The airfoil assembly of claim 1, wherein the linkage includes a door control arm arranged to rotate along with the control surface about the pivot thereof, the door control arm being connected to a crank to which the door is attached, the crank being pivotal about a fixed pivot. 6. The airfoil assembly of claim 5, wherein the linkage further comprises a drive link connected between the door control arm and the crank. 7. The airfoil assembly of claim 5, wherein the linkage further comprises a bracket rigidly affixed to the door, and a stabilizing link, one end of the stabilizing link being connected to the bracket and the stabilizing link being rotatable about a fixed pivot longitudinally offset from the fixed pivot for the crank. 8. The airfoil assembly of claim 7, wherein the crank is rotatably connected to the bracket at a location longitudinally spaced from the one end of the stabilizing link. 9. The airfoil assembly of claim 8, wherein the fixed pivot for the stabilizing link is forward of the fixed pivot for the crank, and the one end of the stabilizing link is forward of the location at which the crank is connected to the bracket. 10. The airfoil assembly of claim 1, wherein the linkage for moving the door comprises exclusively link members that are pivotally connected to one another, the linkage thus being free of rolling and sliding connections. 11. The airfoil assembly of claim 1, wherein the fixed airfoil has an upper aerodynamic surface proximate the panel and a lower aerodynamic surface proximate the door, and the control surface has a leading edge defined by an upper aerodynamic surface and a lower aerodynamic surface that meet at a leading-edge stagnation point in the neutral position of the control surface, and wherein the upper aerodynamic surface of the control surface leading edge has a maximum curvature at a location closer to the upper aerodynamic surface of the fixed airfoil than to the lower aerodynamic surface of the fixed airfoil when the control surface is in the neutral position. 12. The airfoil assembly of claim 1, wherein the pivot for the door is fixed, and wherein the door is further pivoted about another pivot that moves with the door when the door is pivoted about the fixed pivot. 13. An airfoil assembly comprising: a fixed airfoil having a leading edge and a trailing edge and having opposite first and second aerodynamic surfaces; a movable control surface connected to the trailing edge of the fixed airfoil, the control surface being rotatable about a fixed pivot located within an external aerodynamic contour of the airfoil assembly, the control surface being spaced rearwardly from the trailing edge of the fixed airfoil such that an airflow slot is defined between the fixed airfoil and the control surface for airflow from the first aerodynamic surface to the second aerodynamic surface; a movable door connected to the fixed airfoil proximate the first aerodynamic surface thereof, the door having a forward edge and an aft edge that respectively form substantial seals with the airfoil and the control surface when the control surface is in a neutral position so as to close off the airflow slot; and a linkage connecting the door to the control surface, the linkage being structured and arranged such that when the control surface is pivoted in a first direction to move the trailing edge of the control surface generally toward the first aerodynamic surface, the door is moved such that the forward edge of the door is moved generally toward the second aerodynamic surface within the external aerodynamic contour of the airfoil assembly so as to open the airflow slot, wherein the linkage is free of rolling and sliding joints, comprising members connected together by pivot joints. 14. The airfoil assembly of claim 13, further comprising a panel connected to the fixed airfoil proximate the second aerodynamic surface thereof, the panel closing the air flow slot when the control surface is in the neutral position or is pivoted away from the neutral position in a second direction opposite to the first direction, and allowing the air flow slot to open when the control surface is pivoted away from the neutral position in the first direction. 15. The airfoil assembly of claim 14, wherein the panel is pivotally connected to the fixed airfoil and is biased to seal against the control surface when the control surface is in the neutral position thereof and when the control surface is pivoted in the second direction away from the neutral position. 16. The airfoil assembly comprising: a fixed airfoil having a leading edge and a trailing edge and having opposite first and second aerodynamic surfaces; a movable control surface connected to the trailing edge of the fixed airfoil, the control surface being rotatable about a fixed pivot located within an external aerodynamic contour of the airfoil assembly, the control surface being spaced rearwardly from the trailing edge of the fixed airfoil such that an airflow slot is defined between the fixed airfoil and the control surface for airflow from the first aerodynamic surface to the second aerodynamic surface; a movable door connected to the fixed airfoil proximate the first aerodynamic surface thereof, the door having a forward edge and an aft edge that respectively form substantial seals with the airfoil and the control surface when the control surface is in a neutral position so as to close off the airflow slot; and a linkage connecting the door to the control surface, the linkage being structured and arranged such that when the control surface is pivoted in a first direction to move the trailing edge of the control surface generally toward the first aerodynamic surface, the door is moved so as to open the airflow slot, wherein the linkage is free of rolling and sliding joints, comprising members connected together by pivot joints, and wherein the linkage includes a door control arm arranged to rotate along with the control surface about the pivot thereof, the door control arm being connected to a crank to which the door is attached, the crank being pivotal about a fixed pivot. 17. The airfoil assembly of claim 16, wherein the linkage further comprises a drive link connected between the door control arm and the crank. 18. The airfoil assembly of claim 16, wherein the linkage further comprises a bracket rigidly affixed to the door, and a stabilizing link, one end of the stabilizing link being connected to the bracket and the stabilizing link being rotatable about a fixed pivot longitudinally offset from the fixed pivot for the crank. 19. The airfoil assembly of claim 18, wherein the crank is rotatably connected to the bracket at a location longitudinally spaced from the one end of the stabilizing link. 20. The airfoil assembly of claim 19, wherein the fixed pivot for the stabilizing link is forward of the fixed pivot for the crank, and the one end of the stabilizing link is forward of the location at which the crank is connected to the bracket. 21. An airfoil assembly, comprising: a fixed airfoil having a leading edge and a trailing edge and having opposite first and second aerodynamic surfaces; a movable control surface connected to the trailing edge of the fixed airfoil, the control surface being rotatable about a fixed pivot axis located withi n an external aerodynamic contour of the airfoil assembly, a leading edge of the control surface being spaced rearwardly from the trailing edge of the fixed airfoil such that an air flow slot is defined between the fixed airfoil and the control surface for air flow from the first aerodynamic surface to the second aerodynamic surface; a movable door connected to the fixed airfoil proximate the first aerodynamic surface thereof, the door having a forward edge and an aft edge that respectively form substantial seals with the airfoil and the control surface when the control surface is in a neutral position so as to close off the air flow slot; and a linkage connecting the door to the control surface, the linkage comprising: a crank arranged to pivot about a fixed pivot spaced forward of the leading edge of the control surface, an end of the crank being connected to the door such that rotation of the crank about the fixed pivot causes the door to rotate about the fixed pivot; a drive link having first and second ends, the first end being pivotally connected to the crank; and a door control arm rigidly attached to the control surface, the door control arm being held in a fixed pivot such that the door control arm pivots with the control surface about the fixed pivot axis, an end of the door control arm being spaced forward of the fixed pivot for the crank when the control surface is in the neutral position, and the end of the door control arm being pivotally connected to the second end of the drive link, whereby rotation of the control surface in a first direction causes the linkage to move the door to open the air flow slot. 22. The airfoil assembly of claim 21, wherein the fixed airfoil comprises a wing and the control surface comprises an aileron, the door being arranged at a lower side of the wing. 23. The airfoil assembly of claim 21, wherein the linkage further comprises a stabilizing link and a bracket, the bracket being rigidly attached to the door and the end of the crank being pivotally attached to the bracket, a first end of the stabilizing link being pivotally attached to the bracket at a location spaced forward of where the crank is attached to the bracket, a second end of the stabilizing link being held in a fixed pivot spaced forward of the fixed pivot for the crank. 24. The airfoil assembly of claim 21, further comprising a movable panel arranged proximate the second aerodynamic surface of the airfoil at the trailing edge thereof and sealing against the control surface to close the air flow slot when the control surface is in the neutral position, and a support member rigidly affixed to the panel and extending therefrom generally toward the first aerodynamic surface of the airfoil, the support member being held in a fixed pivot such that the panel is urged to rotate about said fixed pivot by rotation of the control surface away from the neutral position in a second direction opposite to said first direction. 25. The airfoil assembly of claim 24, further comprising a spring biasing the movable panel rearwardly toward the control surface, and a stop for limiting rearward movement of the panel.
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