US3629910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handle assembly for picture projection screen
Assignee: Graflex Inc
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Filing: 1969-11-28
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Granted: 1971-12-28
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Expires: 1989-11-28
Abstract
Abstract A rollup-type screen for receiving projected pictures and constructed to operate either on a floor stand or hung from a wall or ceiling. The construction includes a releasable latch mechanism between the screen roll housing and the floor stand.
Inventors
- 👤 Richard C Kirberg
- 👤 Christopher C Hsiao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:33
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/54; G03B21/56; G03B21/58; Y; Y10; Y10S; Y10S24/00; Y10S24/30; Y10S24/51; Y10S24/52; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45513; Y10T24/45518
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A latch mechanism for joining a tubular housing for a picture-receiving screen and a handle forming part of a floor standard comprising a bracket attached to said tubular housing, said bracket having spaced-apart side flanges, said handle having a portion thereof for disposition between the bracket side flanges, said bracket side flanges having generally axially aligned notches and said notches having restricted mouths to the flange edge, and said handle portion between the bracket side flanges having openings axially aligned with the openings in the bracket flanges, and an axially slidable latch pin disposed within said aligned openings, said latch pin having largediameter portions and small-diameter portions and spring means normally urging said large-diameter portions to a position within the bracket flange notches, and means to axially slide said latch pin against the action of the spring means to cause said smalldiameter portions to be located within the bracket notches whereby the handle and the bracket may be separated by swingably sliding the small-diameter portions through the reduced-size passageways.
Claim 2
Dependent Claim
169 words
A latch mechanism for joining a tubular housing for a picture-receiving screen and a handle forming part of a floor standard comprising a bracket attached to said tubular housing, said bracket having spaced-apart side flanges, said handle having a portion thereof for disposition between the bracket side flanges, said bracket side flanges having generally axially aligned notches and said notches having restricted mouths to the flange edge, and said handle portion between the bracket side flanges having openings axially aligned with the openings in the bracket flanges, and an axially slidable latch pin disposed within said aligned openings, said latch pin having largediameter portions and small-diameter portions and spring means normally urging said large-diameter portions to a position within the bracket flange notches, and means to axially slide said latch pin against the action of the spring means to cause said smalldiameter portions to be located within the bracket notches whereby the handle and the bracket may be separated by swingably sliding the small-diameter portions through the reduced-size passageways.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |