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US4373280A Expired / Lapsed US ⏱️ 0.0 years remaining

X-Ray viewing apparatus

Assignee: Individual
•
Filing: 1980-10-14
•
Granted: 1983-02-15
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Expires: 2000-10-14
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Abstract

Abstract A box structure having a light source therein and a light transmission panel on the front thereof to receive X-ray films thereon for viewing with back-light illumination is provided with a horizontal cross bar detachably secured across the light transmission panel at a predetermined vertical position to divide the viewing screen into upper and lower viewing areas. The bottom of the cross bar is provided with a portion for detachably retaining a film edge for viewing of a film in the lower viewing area, and shades are horizontally secured at the top or bottom of the front of the box structure and are vertically drawable to cover at least an underlying portion of the light transmission panel to reduce glare.

Inventors

  • 👤 Samuel L. Armfield, III

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 02:08
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/02; G02B27/022; G02B27/024; Y; Y10; Y10S; Y10S353/00; Y10S353/05

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 101 words
An adaptor for an X-ray viewer having an illuminated viewing panel, comprising, at least one horizontal cross bar secured across said viewing panel and movable to different vertical positions thereacross, means on a bottom edge of said cross bar to detachably retain a film edge, shade means on said X-ray viewer movable to shade lower areas of said illuminated panel while selectively permitting upper areas thereof directly above said lower shaded areas to remain unshaded, said shade means including at least two shades positioned side-by-side, including means to detachably secure said shade to said cross bar when said shades are drawn.
Claim 2
Dependent Claim 101 words
An adaptor for an X-ray viewer having an illuminated viewing panel, comprising, at least one horizontal cross bar secured across said viewing panel and movable to different vertical positions thereacross, means on a bottom edge of said cross bar to detachably retain a film edge, shade means on said X-ray viewer movable to shade lower areas of said illuminated panel while selectively permitting upper areas thereof directly above said lower shaded areas to remain unshaded, said shade means including at least two shades positioned side-by-side, including means to detachably secure said shade to said cross bar when said shades are drawn.
Claim 3
Dependent Claim 78 words
An adaptor for an X-ray viewer having an illuminated viewing panel, comprising, at least one horizontal cross bar secured across said viewing panel and movable to different vertical positions thereacross, means on a bottom edge of said cross bar to detachably retain a film edge, including two spaced vertical side rails and means to secure said rails on said X-ray viewer, said at least one cross bar received on said side rails for vertical movement and positioning therealong.
Claim 4
Dependent Claim 78 words
An adaptor for an X-ray viewer having an illuminated viewing panel, comprising, at least one horizontal cross bar secured across said viewing panel and movable to different vertical positions thereacross, means on a bottom edge of said cross bar to detachably retain a film edge, including two spaced vertical side rails and means to secure said rails on said X-ray viewer, said at least one cross bar received on said side rails for vertical movement and positioning therealong.
Claim 5
Dependent Claim 21 words
The adaptor of claim 2, including a plurality of said cross bars slidably received on said side rails in parallel arrangement.
Claim 6
Dependent Claim 16 words
The adaptor of claim 2, wherein said cross bar is detachably removable from said side rails.
Claim 7
Dependent Claim 160 words
An X-ray viewing apparatus comprising a box structure having a light source therein and a light transmission panel on the front thereof to receive X-ray films thereon for viewing with back-light illumination from said light source, a horizontal cross bar positioned across said light transmission panel at a predetermined vertical position to divide said viewing panel into upper and lower viewing areas, means on a bottom edge of said cross bar for detachably retaining a film edge for viewing of a film in said lower viewing area, and shade means on the front of said box structure and movable to shade at least a portion of said lower viewing area of said light transmission panel while selectively permitting a portion of said upper viewing area directly above said shaded portion to remain unshaded, wherein said shade means includes at least two shades positioned side-by-side, including means to detachably secure said shade to said cross bar when said shades are drawn.
Claim 8
Dependent Claim 160 words
An X-ray viewing apparatus comprising a box structure having a light source therein and a light transmission panel on the front thereof to receive X-ray films thereon for viewing with back-light illumination from said light source, a horizontal cross bar positioned across said light transmission panel at a predetermined vertical position to divide said viewing panel into upper and lower viewing areas, means on a bottom edge of said cross bar for detachably retaining a film edge for viewing of a film in said lower viewing area, and shade means on the front of said box structure and movable to shade at least a portion of said lower viewing area of said light transmission panel while selectively permitting a portion of said upper viewing area directly above said shaded portion to remain unshaded, wherein said shade means includes at least two shades positioned side-by-side, including means to detachably secure said shade to said cross bar when said shades are drawn.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-02-14 1986-08-16 1987-02-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-02-14 1990-08-16 1991-02-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-02-14 1994-08-16 1995-02-15 $7700.00 Window Closed / Lapsed

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