Collapsible projection screen

Claim 2

A projection screen structure, comprising, a. an elongate standard, b. a screen support adjustable along an intermediate portion of the standard, c. a screen casing mounted on the screen support, d. a rolled screen in the casing, e. a hanger on the upper end of the standard, f. a latch on the screen support for holding the support in adjusted positions on the standard, g. a stop lug on the standard normally engageable with the latch for limiting downward movement of the support at a position defining a storage position of the support on the standard, h. means mounting the support on the standard for bypassing the stop lug, and i. means mounting the latch on the support for selectively bypassing the stop lug to lower the support past the stop lug.

Claim 3

A projection screen structure as defined in claim 1, wherein the screen support comprises a bracket having spaced upper and lower apertured flanges slidably mounted on the standard.

Claim 4

A projection screen structure as defined in claim 2, wherein the standard is rectangular in cross section and the screen support bracket flanges have rectangular apertures slidably receiving the standard and recesses for clearing the stop lug.

Claim 5

A collapsible projection screen structure as defined in claim 2, wherein the latch for holding the screen support bracket in adjusted positions on the standard comprises a plate having one end pivotally mounted on the bracket, an intermediate portion having an oversize aperture receiving the standard, a manually accessible opposite end, and spring means resiliently urging the plate against the standard.

Claim 6

A projection screen structure as defined in claim 4, wherein the pivoted plate has a recess for clearing the stop lug.

Claim 7

A collapsible projection screen structure, comprising, a. an elongate standard, b. a screen support bracket having spaced flanges with apertures slidably receiving an intermediate portion of the standard for adjustment of the bracket along the standard, c. a releasable latch on the bracket engageable with the standard for holding the bracket in canted position biting the standard, d. a tubular screen casing mounted on the screen support for movement between an upright storage position parallel to the standard and a horizontal position transverse to the standard, e. a rolled screen in the casing extensible from the casing in an upright plane when the casing is horizontally disposed, f. an extensible rod on the upper end of the standard for holding the upper end of the screen in extended position and for holding the upper end of the casing in storage position, g. releasable clamp means on the standard for holding the rod in adjusted positions, h. a stop lug on the rear of the standard normally engageable with the latch on downward movement of the bracket to limit downward movement of the bracket at a position defining a storage position of the bracket, i. the apertures in said bracket flanges being shaped to pass the stop lug for movement of the screen to a lower position for viewing, and j. the latch being shaped with a recess for selectively bypassing the stop lug.

Claim 8

A collapsible projection screen structure, comprising, a. an elongate standard, b. a screen support bracket having spaced flanges with apertures slidably receiving an intermediate portion of the standard for adjustment of the bracket along the standard, c. a releasable latch on the bracket engageable with the standard for holding the bracket in canted position biting the standard, d. a tubular screen casing mounted on the screen support for movement between an upright storage position parallel to the standard and a horizontal position transverse to the standard, e. a rolled screen in the casing extensible from the casing in an upright plane when the casing is horizontally disposed, f. an extensible rod on the upper end of the standard for holding the upper end of the screen in extended position and for holding the upper end of the casing in storage position, g. releasable clamp means on the standard for holding the rod in adjusted positions, h. a stop lug on the rear of the standard normally engageable with the latch on downward movement of the bracket to limit downward movement of the bracket at a position defining a storage position of the bracket, i. the apertures in said bracket flanges being shaped to pass the stop lug for movement of the screen to a lower position for viewing, and j. the latch being shaped with a recess for selectively bypassing the stop lug.

Claim 9

A collapsible projection screen structure as defined in claim 6, wherein the releasable latch on the bracket for holding the bracket on the standard comprises a plate having one end pivotally mounted on the front of the bracket, an intermediate portion having an oversize aperture receiving the standard, and an opposite end manually accessible adjacent the handle for manipulation, and spring means resiliently acting between the upper bracket flange and said opposite end of the plate to bias such end downwardly to engage the plate with the standard.

Claim 10

A collapsible projection screen structure as defined in claim 7, wherein the latch plate is recessed at the rear of the oversize aperture to pass the stop lug.

Claim 11

A collapsible projection screen structure, comprising, a. an elongate standard, b. a collapsible leg structure on the lower end of the standard for supporting the standard in upright position, c. a screen support bracket having spaced flanges with apertures slidably receiving an intermediate portion of the standard for adjustment of the bracket along the standard, d. a handle on the screen support bracket, e. a releasable latch on the bracket engageable with the standard for holding the bracket in canted position biting the standard, f. a tubular screen casing pivotally mounted on the screen support for swinging movement between an upright storage position parallel to the standard and a horizontal position transverse to the standard, g. a rolled screen in the casing extensible from the casing in an upright plane when the casing Is horizontally disposed, h. an extensible rod on the upper end of the standard for holding the upper end of the screen in extended position and for holding the upper end of the casing in storage position, i. releasable clamp means on the standard for holding the rod in adjusted positions, j. a stop lug on the rear of the standard normally engageable with the latch on downward movement of the bracket to limit downward movement of the bracket at a position defining a storage position of the bracket, k. said bracket flanges being recessed at the rear of the apertures therein to pass the stop lug for movement of the screen to a lower position for viewing, and l. the latch being apertured to selectively bypass the stop lug.

Claim 12

A collapsible projection screen structure, comprising, a. an elongate standard, b. a collapsible leg structure on the lower end of the standard for supporting the standard in upright position, c. a screen support bracket having spaced flanges with apertures slidably receiving an intermediate portion of the standard for adjustment of the bracket along the standard, d. a handle on the screen support bracket, e. a releasable latch on the bracket engageable with the standard for holding the bracket in canted position biting the standard, f. a tubular screen casing pivotally mounted on the screen support for swinging movement between an upright storage position parallel to the standard and a horizontal position transverse to the standard, g. a rolled screen in the casing extensible from the casing in an upright plane when the casing Is horizontally disposed, h. an extensible rod on the upper end of the standard for holding the upper end of the screen in extended position and for holding the upper end of the casing in storage position, i. releasable clamp means on the standard for holding the rod in adjusted positions, j. a stop lug on the rear of the standard normally engageable with the latch on downward movement of the bracket to limit downward movement of the bracket at a position defining a storage position of the bracket, k. said bracket flanges being recessed at the rear of the apertures therein to pass the stop lug for movement of the screen to a lower position for viewing, and l. the latch being apertured to selectively bypass the stop lug.