公开(公告)号：US4032861A

公开(公告)日：1977-06-28

申请号：US596262

申请日：1975-07-16

Applicant: Larry R. Rothrock

Inventor： Larry R. Rothrock

IPC: B23K26/06 ,  H01S3/08

CPC classification number: H01S3/08 ,  B23K26/066 ,  B23K2201/007 ,  Y10S148/093

Abstract: A high gain optically pumped laser device includes a mask having cut-out portions defining a given pattern disposed in the resonant optical cavity defined between end mirrors at opposite ends of the laser material. Each of the end mirrors is equivalent to an optically flat reflecting surface such that only cross-sectional portions in the laser material similar to the pattern are stimulated to emit output laser radiation. This stimulated emission has a high energy density and may be directly radiated to a target surface to alter the surface in a manner corresponding to the given pattern. The alteration may take the form of actual vaporization, heating, or oxidation of portions of the surface. Thus carefully controlled engraving type processes or other processes involving a physical alteration of a surface such as the drilling of square or unusually shaped holes as determined by the pattern can be carried out.

公开(公告)号：US4902224A

公开(公告)日：1990-02-20

申请号：US286168

申请日：1988-12-19

Applicant: Paul R. Collins ,  Larry R. Rothrock

Inventor： Paul R. Collins ,  Larry R. Rothrock

IPC: A61C7/12

CPC classification number: A61C7/12

Abstract: A crystalline orthodontic bracket with enhanced tolerance to fabrication, installation and use is composed of zirconia, yttria, magnesia or strontium titanate.

Abstract translation: 具有增强的制造，安装和使用耐受性的结晶正畸托架由氧化锆，氧化钇，氧化镁或钛酸锶组成。

公开(公告)号：US4932865A

公开(公告)日：1990-06-12

申请号：US220303

申请日：1988-07-18

Applicant: Paul R. Collins ,  Larry R. Rothrock

Inventor： Paul R. Collins ,  Larry R. Rothrock

IPC: A61C7/12 ,  A61K6/06

CPC classification number: A61C7/12

Abstract: A sapphire orthodontic bracket with enhanced tolerance to fabrication, installation and use is fabricated such that the "r" planes of the sapphire are at substantially equal angles to the longitudinal axis of the arch wire groove of the bracket.

Abstract translation: 制造具有增强的制造，安装和使用耐受性的蓝宝石正畸托架，使得蓝宝石的“r”面与支架的拱形线槽的纵向轴线基本相等。

公开(公告)号：US4988293A

公开(公告)日：1991-01-29

申请号：US268186

申请日：1988-11-07

Applicant: Paul R. Collins ,  Larry R. Rothrock

Inventor： Paul R. Collins ,  Larry R. Rothrock

IPC: A61C7/12 ,  A61K6/06

CPC classification number: A61C7/141

Abstract: A single crystal orthodontic bracket is disclosed which is provided with an outer protective layer of a polycrystalline material so as to provide fracture toughness of the orthodontic bracket.

Abstract translation: 公开了一种单晶正畸托架，其具有多晶材料的外保护层，以提供正畸托架的断裂韧性。

公开(公告)号：US4025386A

公开(公告)日：1977-05-24

申请号：US700588

申请日：1976-06-28

Applicant: Larry R. Rothrock

Inventor： Larry R. Rothrock

IPC: C30B15/00 ,  C30B15/36 ,  B01J17/18 ,  C01F7/02

CPC classification number: C30B15/36 ,  C30B15/00 ,  C30B29/20 ,  Y10S117/902

Abstract: Method for producing massive unicrystalline R-plane alpha alumina of circular cross-section from an alumina melt by controlled rotation of the seed rod upon which the alpha alumina is solidified and crystallized.

Abstract translation: 通过种子棒的控制旋转从氧化铝熔体制备大块单晶R平面α氧化铝的方法，其中α-氧化铝固化并结晶。