Donald C Sanders

US Patent:

41381912, Feb 6, 1979

Filed:

Apr 4, 1977

Appl. No.:

5/784039

Inventors:

Gholam A. Peyman - Oak Park IL
Jeffrey E. Koziol - Oak Park IL
Walter I. Fried - Chicago IL
Donald R. Sanders - Skokie IL

International Classification:

G02B 2122
G02B 2136

US Classification:

350 19

Abstract:

A combined operating microscope and illumination system having a coaxial and/or par focal light source for illumination for precise instrumentation during intraocular and other operating procedures. Stereoscopic view for a surgeon and an assistant is provided with an alternatively selective light diverting system in the assistant's light system for photographic purposes. Coaxial and par focal slit illumination are achieved by a light source movable on an arc shaped tract without reflecting light through the surgeon's lens system thereby permitting additional space for a second light system to the assistant without reducing that available to the surgeon.

US Patent:

42384826, Dec 9, 1980

Filed:

Sep 29, 1978

Appl. No.:

5/947225

Inventors:

Gholam A. Peyman - Chicago IL
Donald R. Sanders - Skokie IL

International Classification:

A61K 31735
C08B 3702

US Classification:

424180

Abstract:

Improved fluid for intraocular infusion and irrigation and methods of preparation and use. The fluid is an aqueous physiologic saline solution containing from 2-15% by weight of an artificial, substantially non-antigenic oncotic agent of a colloid type, such as dextran having an average molecular weight in the range of from about 1,000 to 40,000. The solution also contains NaCl, CaCl. sub. 2, dextrose and sodium bicarbonate, and is adjusted to have an osmolarity in the range of 260-400 mOsm/L and a pH in the range of from about 7 to 7. 8. The solution may be used as a replacement fluid for the aqueous or vitreous humor, for the reestablishment of intraocular pressure during or after surgery, as an irrigating fluid during phacoemulsification, and generally for external eye surface rinsing during cataract surgery. The solution results in improved lens maintenance and corneal endothelial function during procedures such as vitrectomy, irrigation and aspiration of cataracts, and in phacoemulsification. Improvement is demonstrated, for example, by reduced corneal endothelial decompensation (inhibition of osmotic corneal swelling), by reduced water and sodium gain, by reduced potassium loss, and by recovery of the lens' ability to reverse electrolyte imbalances due to stress of the type typical of surgery, diabetes, ageing, and physical, chemical or biochemical trauma.

US Patent:

20210352391, Nov 11, 2021

Filed:

Sep 10, 2019

Appl. No.:

17/274732

Inventors:

- Itasca IL, US
Edwin Cordon - Itasca IL, US
Niel Warren - Mountain View CA, US
Donald Sanders - Itasca IL, US
Maulik Patel - Itasca IL, US
Dushyant Liya - Itasca IL, US

Assignee:

Knowles Electronics, LLC - Itasca IL

International Classification:

H04R 1/08

Abstract:

A microphone assembly includes a housing including a base, a cover, and a sound port. The microphone assembly further includes an acoustic transducer and an electrical circuit, both of which are disposed in an enclosed volume of the housing. The transducer and electrical circuit work in concert to convert sound waves into a processed digital audio signal. The electrical circuit is configured to process digital data in a series of frames that correspond to a fixed period in time. The electrical circuit is further configured to reduce noise in the resulting signal by varying the current draw required in a randomized or pseudo-randomized fashion between adjacent frames of digital data.

US Patent:

20180249852, Sep 6, 2018

Filed:

Sep 12, 2016

Appl. No.:

15/758935

Inventors:

- Garden City GA, US
Donald Greene Sanders - Savannah GA, US

International Classification:

A47G 23/02

Abstract:

An apparatus for securing one or more items of stemware includes a base plate, one or more posts, a retainer, and one or more feet. The feet and base plate cooperatively secure the base portion of the item of stemware, and the retainer includes arms defining a stem receiving space that secures the stem of the item of stemware. The feet are coupled to the arms. The arms are flexible so as to accommodate different sizes of stems and bases in stemware with a single rack.

US Patent:

20170071383, Mar 16, 2017

Filed:

Sep 11, 2015

Appl. No.:

14/852265

Inventors:

- Garden City GA, US
Donald Greene Sanders - Savannah GA, US

International Classification:

A47G 23/02

Abstract:

An apparatus for securing one or more items of stemware includes a base plate, one or more posts, a retainer, and one or more feet. The feet and base plate cooperatively secure the base portion of the item of stemware, and the retainer includes arms defining a stem receiving space that secures the stem of the item of stemware. The feet are coupled to the arms. The arms are flexible so as to accommodate different sizes of stems and bases in stemware with a single rack.