| US 10,967,401 B2 | ||
| Injection molded screening apparatuses and methods | ||
| Keith F. Wojciechowski, Lakeview, NY (US) | ||
| Assigned to DERRICK CORPORATION, Buffalo, NY (US) | ||
| Filed by Derrick Corporation, Buffalo, NY (US) | ||
| Filed on Mar. 20, 2019, as Appl. No. 16/359,773. | ||
| Application 15/851,099 is a division of application No. 15/201,865, filed on Jul. 5, 2016, granted, now 9,884,344, issued on Feb. 6, 2018. | ||
| Application 16/359,773 is a continuation of application No. 15/851,099, filed on Dec. 21, 2017, granted, now 10,259,013. | ||
| Application 15/201,865 is a continuation of application No. 14/268,101, filed on May 2, 2014, granted, now 9,409,209, issued on Aug. 9, 2016. | ||
| Application 14/268,101 is a continuation in part of application No. 13/800,826, filed on Mar. 13, 2013, granted, now 10,046,363, issued on Aug. 14, 2018. | ||
| Claims priority of provisional application 61/652,039, filed on May 25, 2012. | ||
| Claims priority of provisional application 61/714,882, filed on Oct. 17, 2012. | ||
| Prior Publication US 2019/0314861 A1, Oct. 17, 2019 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. B07B 1/46 (2006.01); B29D 28/00 (2006.01); B07B 1/48 (2006.01); B29C 45/00 (2006.01); B29C 65/16 (2006.01); B29K 75/00 (2006.01) | ||
| CPC B07B 1/4618 (2013.01) [B07B 1/46 (2013.01); B07B 1/469 (2013.01); B07B 1/4645 (2013.01); B07B 1/4654 (2013.01); B07B 1/4663 (2013.01); B29C 45/0001 (2013.01); B29C 65/16 (2013.01); B29D 28/00 (2013.01); B07B 1/48 (2013.01); B29K 2075/00 (2013.01)] | 30 Claims |
| 1. A method of fabricating a screen assembly, comprising: laser welding a screen element of a first material to a subgrid of a second material;
attaching multiple subgrids together to form the screen assembly;
wherein the first material and the second material are different materials; and
wherein the first material and the second material are fused together at laser weld locations.
|