Back to 1998's patent survey.
| United States Patent | 5,837,965 |
| Mosca, et. al. | Nov. 17, 1998 |
Focusing head of a laser beam provided with a focusing lens for a machine for working metal and non-metal parts
Abstract
A focusing head of a laser beam provided with a focusing lens for a machine for working parts comprises an extractable lens-holding frame that supports the focusing lens, a supporting and centering bracket wherein the lens-holding frame is mounted in a disengageable manner, a spring in engagement with the supporting and centering bracket to urge the lens-holding frame in abutment against a stop socket. In that way the lens-holding frame is disengageable from the supporting and centering bracket by an action of compression of the spring and it can be extracted and reassembled in the focusing head without modifying centering and positioning of the focal spot of the lens.
| Inventors: | Mosca; Claudio
(Tenna, IT);
Perini; Stefano
(Trento, IT).
|
| Assignee: | Salvagnini Italia S.p.A.
(Sarego, IT).
|
| Appl. No.: | 766,590 |
| Filed: | Dec. 12, 1996 |
Foreign Application Priority Data
| Dec. 14, 1995 [IT] | M195 A 002621 |
| Intl. Cl. : | B23K 26/00 |
| Current U.S. Cl.: | 219/121.75; 219/121.6 |
| Field of Search: | 219/121.6, 121.63, 121.67, 121.73, 121.75; 359/827 |
References Cited | [Referenced By]
U.S. Patent Documents
| 4,135,778 | Jan., 1979 | Lincoln | 359/827 |
| 4,896,944 | Jan., 1990 | Irwin et al. | 219/121.75 X |
| 4,979,180 | Dec., 1990 | Muncheryan | |
| 5,508,490 | Apr., 1996 | Klose | 219/121.6 X |
| 5,702,622 | Dec., 1997 | Schubert et al. | 219/121.75 |
Foreign Patent Documents
| A-2532215 | Aug., 1983 | FR | |
| 3814985 | Dec., 1988 | DE | 219/121.75 |
| 62-199282 | Sept., 1987 | JP | 219/121.75 |
| 2-217188 | Aug., 1990 | JP | 219/121.75 |
-
Other References
-
Patent Abstracts of Japan, vol. 8, No. 116(M-299) [1553], 30 May 1984 & JP -A-59 024595 (Matsushita Denki Sangyo), 8 Feb. 1984.
Primary Examiner: Mills; Gregory L.
Attorney, Agent or Firm: Nixon & Vanderhye
9 Claims, 10 Drawing Figures
Back to 1998's patent survey.