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Wearable Device For Feeding and Observing Birds and Other Flying Animals
A device for feeding and observing flying animals comprising a hat, a support mounted on the hat and extending outward from the hat, and a feeder mounted on the support.
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US Patent 4887592 - Cornea laser-cutting apparatus
US Patent Issued on December 19, 1989
Estimated Patent Expiration Date:
June 2, 2007Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
June 2, 2007Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractA cornea laser-cutting apparatus adapted for use in cutting out a cornea of patient's or donor's eye in full thickness cornea transplanting surgery or keratoplasty. The cornea laser-cutting apparatus comprises an HF or Er-YAG laser source and a projection optical system for converging laser beams radiated from the laser source in a ring-like shape on the cornea, and includes an axicon lens or mirror movably mounted for varying the size of the ring-like shape.Other References
| InventorApplicationNo. 056711 filed on 06/02/1987US Classes:606/5, Recurving or reshaping of the eye219/121.6, Using laser219/121.7, Hole punching219/121.78, Beam position control606/18MirrorField of Search219/121.6, Using laser219/121.78, Beam position control219/121.79, Path adjustment219/121.7Hole punchingExaminersPrimary: Cohen, Lee S.Assistant: Shay, David M. Attorney, Agent or FirmUS Patent References3096767, 3419321, 3534462, 3710798, 3848970, 3947780, Acoustooptic mode-locker frequency doublerIssued on: 03/30/1976 Inventor: Rice , et al.4123143, Laser beam aligning apparatus Issued on: 10/31/1978 Inventor: Yachin , et al.4275288, Apparatus for machining material Issued on: 06/23/1981 Inventor: Makosch , et al.4461294, Apparatus and process for recurving the cornea of an eye Issued on: 07/24/1984 Inventor: Baron4538608, Method and apparatus for removing cataractous lens tissue by laser radiation Issued on: 09/03/1985 Inventor: L'Esperance, Jr.4628416, Variable spot size illuminator with constant convergence angle Issued on: 12/09/1986 Inventor: Dewey4648400, Ophthalmic surgery system Issued on: 03/10/1987 Inventor: Schneider , et al.4665913, Method for ophthalmological surgery Issued on: 05/19/1987 Inventor: L'Esperance, Jr.4718418Apparatus for ophthalmological surgery Issued on: 01/12/1988 Inventor: L'Esperance, Jr. International ClassA61N 005/06 |
