David C Haas

US Patent:

45300062, Jul 16, 1985

Filed:

Jun 3, 1982

Appl. No.:

6/384826

Inventors:

Aaron Blaustein - Oyster Bay NY
David J. Haas - Suffern NY
Francis R. Paolini - Stamford CT

Assignee:

North American Philips Corporation - New York NY

International Classification:

H04N 532

US Classification:

358111

Abstract:

The present invention provides a digital system including circuitry for imaging items passing on a conveyor belt through an X-ray fan beam. The circuitry of the present invention enables detection of the items as soon as the X-ray beam is pierced and an image of the items is maintained on a monitor following removal of the items from the X-ray beam. This enables detection of all items entering the X-ray beam, and subsequent inspection of the items.

US Patent:

D2512963, Mar 13, 1979

Filed:

Mar 3, 1977

Appl. No.:

5/774225

Inventors:

David L. Haas - Westport CT

Assignee:

Interconnect Planning Corporation - New York NY

International Classification:

D1403

US Classification:

D14 58

US Patent:

40342514, Jul 5, 1977

Filed:

Feb 23, 1976

Appl. No.:

5/660698

Inventors:

David J. Haas - Stamford CT

Assignee:

North American Philips Corporation - New York NY

International Classification:

H01J 3500

US Classification:

313 59

Abstract:

The present invention comprises an x-ray transmission target tube that includes an envelope; x-ray permeable window means disposed at the envelope and forming a part thereof; means for directing a charged particle beam to the window means to generate x-rays thereat; structural means for providing a space at the window means, which structural means comprises an x-ray permeable window element that is disposed opposite the window means and further comprises wall means, which structural means, together with the window means, forms the space; and means for transferring a heat-transfer fluid through the space so as to be in heat transfer relationship with the window means.

US Patent:

39808890, Sep 14, 1976

Filed:

Oct 6, 1975

Appl. No.:

5/619955

Inventors:

David J. Haas - Stamford CT
Aaron Blaustein - Oysterbay NY
Chester D. Rudd - Westwood NJ
Ray C. Lapof - New York NY
William C. Schimpf - Forest Hill NY

Assignee:

North American Philips Corporation - New York NY

International Classification:

G01T 100

US Classification:

250492R

Abstract:

An article transfer and inspection apparatus comprising chamber-defining means, substantially impermeable to x-rays; and x-ray source for directing x-rays to a first portion of said chamber; feed and extraction conveyor systems individually having at least a portion thereof outside the chamber and respectively serving to introduce and remove an article into and from the chamber, the feed conveyor system being operable at a first speed; an inspection conveyor system located between the feed and extraction conveyor systems and at least partly disposed at the chamber first portion, the inspection conveyor system being operable at a second speed at least equal to the first speed and serving to carry the article through the chamber first portion; and means for converting x-rays passing through the first portion and the article into a visual image. The apparatus can also include means for achieving a pre-determined spacing between various articles. Also, transfer apparatus for achieving pre-determined spacing between various articles.

US Patent:

40526216, Oct 4, 1977

Filed:

Dec 15, 1975

Appl. No.:

5/640486

Inventors:

David J. Haas - Stamford CT

Assignee:

North American Philips Corporation - New York NY

International Classification:

F21K 202
G01T 120

US Classification:

250458

Abstract:

An object viewing system, comprising a radiation source, means for converting a radiation image to a light image, said means being spaced from said radiation source and comprising a phosphor layer and a light reflective layer, said phosphor layer being more proximate to said radiation source than said reflective layer and said reflective layer being disposed so as to reflect light from said phosphor layer in the direction of a radiation permeable light reflector, said radiation permeable light reflector being located between said converting means and said source, said reflector comprising a light reflecting area that faces and is angularly oriented with respect to said phosphor layer, and being disposed so as to receive light traveling in a first direction and reflecting said light in a second direction, said reflector being spaced from said radiation source such that said object can be located therebetween.

US Patent:

D2481642, Jun 13, 1978

Filed:

Apr 14, 1977

Appl. No.:

5/787355

Inventors:

Mace Hudson Bell - Rowayton CT
David Lee Haas - Norwalk CT

International Classification:

D2402
D1007

US Classification:

D24 21

US Patent:

D2603543, Aug 25, 1981

Filed:

Jun 19, 1978

Appl. No.:

5/917001

Inventors:

Richard Proops - Wayzata MN
David Haas - Norwalk CT
John Cuccio - Westport CT

Assignee:

Hilti Aktiengesellschaft - Schaan

International Classification:

D0802

US Classification:

D 8 61

US Patent:

41367065, Jan 30, 1979

Filed:

Nov 15, 1976

Appl. No.:

5/741921

Inventors:

David L. Haas - Norwalk CT

Assignee:

Sperry Rand Corporation - Bridgeport CT

International Classification:

A45D 200

US Classification:

132 40

Abstract:

An improved hair roller is disclosed which is adapted to be stored in a substantially flat configuration and to be expanded into a body having a cylindrically shaped configuration which is substantially resistant to bending and buckling. The hair roller comprises first and second sleeve shaped bodies, one of which is dimensioned to be telescopically positioned within the other and the bodies are adapted to be mutually rotated for forming and maintaining a cylindrically shaped configuration.