IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0252348
(2002-09-23)
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발명자
/ 주소 |
- Barnes, Charles David
- McLean, Ellen Marie
- Howard, John R.
- Nichols, Charles E.
- Sigsworth, William
|
인용정보 |
피인용 횟수 :
11 인용 특허 :
8 |
초록
▼
A retainer for holding a plurality of waterfowl decoys has at least three arms pivotally mounted on a pin so as to be moveable between a first position in which the arms are aligned parallel to each other for storage and a open position in which the arms are angularly oriented with respect to one an
A retainer for holding a plurality of waterfowl decoys has at least three arms pivotally mounted on a pin so as to be moveable between a first position in which the arms are aligned parallel to each other for storage and a open position in which the arms are angularly oriented with respect to one another. The device includes a locking pin for fitting into a first set of holes in the three arms for locking the arms in the first position and fitting into a second set of holes in the arms for locking the arms in the second position. The device further includes a moveable post at the end of each arm for retaining a waterfowl decoy and a ratchet engagement between the post and the arm to permit manual movement of the post with respect to the arm to its desired orientation to retain the post in the desired orientation after it has been positioned without requiring the tightening or untightening of screws and the like.
대표청구항
▼
A retainer for holding a plurality of waterfowl decoys has at least three arms pivotally mounted on a pin so as to be moveable between a first position in which the arms are aligned parallel to each other for storage and a open position in which the arms are angularly oriented with respect to one an
A retainer for holding a plurality of waterfowl decoys has at least three arms pivotally mounted on a pin so as to be moveable between a first position in which the arms are aligned parallel to each other for storage and a open position in which the arms are angularly oriented with respect to one another. The device includes a locking pin for fitting into a first set of holes in the three arms for locking the arms in the first position and fitting into a second set of holes in the arms for locking the arms in the second position. The device further includes a moveable post at the end of each arm for retaining a waterfowl decoy and a ratchet engagement between the post and the arm to permit manual movement of the post with respect to the arm to its desired orientation to retain the post in the desired orientation after it has been positioned without requiring the tightening or untightening of screws and the like. of the material until a depth at which compressive residual stress exhibits a maximum value, wherein the carburized layer remains at a depth of at least 0.15 mm after grinding; and (c), after step (b), shot-peening a surface ground by step (b). 2. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein the carburized layer is formed by carburizing over at least a depth of 500 μm from the surface of the material. 3. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein shot-peening Is performed at a pressure of 60 MPa or more. 4. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein shot-peening is performed at a pressure of 100 Mpa or more. 5. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein shot-peening is performed using spherical glass beads having a diameter of about 0.04 mm. 6. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein shot-peening is performed on a bearing portion of the material. 7. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein shot-peening is performed on the entire surface of the material so as to remove a grain boundary oxidized layer in the material. 8. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein the bearing surface has a surface roughness of approximately Rmax 2 μm or slightly less. 9. A production process for a connecting rod for an internal combustion engine, according to claim 8, wherein the shot-peening is performed using glass beads. 10. A production process for a connecting rod for an internal combustion engine, according to claim 9, wherein the glass beads have a spherical shape. 11. A production process for a connecting rod for an internal combustion engine, the production process comprising the steps of (a) carburizing and quenching the connecting rod for forming a carburized layer at a surface layer of a material of the connecting rod; (b), after step (a), grinding the carburized layer formed in a bearing portion of the material to a depth in a range of 100 :m and 200 :m where the compressive residual stress exhibits a maximum value, wherein the carburized layer remains at a depth of at least 0.15 mm after grinding; and (c), after step (b), shot-peening the bearing portion. 12. A production process for a connecting rod for an internal combustion engine, according to claim 1, wherein the bearing surface has a surface roughness of Rmax 3 μm or less obtained by performing shot-peening at a pressure of 60 to 150 MPa. 13. A production process for a connecting rod for an internal combustion engine, according to claim 12, wherein the shot-peening Is performed using glass beads. 14. A production process for a connecting rod for an internal combustion engine, according to claim 13, wherein the glass beads have a spherical shape. ubstrate; and forming an upper conductor connection on the insulating resin film so as to connect the upper conductor connection to the lower conductor connection through the through-hole in the insulating resin film, wherein the photomask has a via hole pattern including a light-shielding pattern corresponding to the bottom of the through-hole, and pluralities of light-shielding strips and translucent strips which are arranged alternately and substantially parallel to one another, the pluralities of light-shielding strips and translucent strips corresponding to the sloped inner wall of the through-hole, wherein the tilt angle θ, which is determined using a polynomial approximation of degree n: wherein s is the width of the light-shielding strips and Φ is a constant relating to the exposure conditions, is in the range of about 0.17 rad2. 13. The method of manufacturing a circuit board according to claim 1, wherein the photomask is made of glass and has a substantially square light-shielding pattern at the center in the longitudinal direction. 14. T he method of manufacturing a circuit board according to claim 1, wherein at each side of the light-shielding pattern, a pattern including a plurality translucent strips aligned alternately with light-shielding strips in a substantially parallel manner is provided. 15. The method of manufacturing a circuit board according to claim 14, wherein the widths of plurality of the translucent strips are approximately 1 μm to approximately 5 μm. 16. The method of manufacturing a circuit board according to claim 14, wherein the width of each of the light-shielding strips is about 1 μm. 17. The method of manufacturing a circuit board according to claim 1, wherein the photosensitive resin film is developed in 1,3,5-triisopropylbenzene at a constant temperature of about 32° C.
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