US3584905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cover latch mechanism
Assignee: Ricoh Printing Systems America Inc
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Filing: 1968-07-31
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Granted: 1971-06-15
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Expires: 1988-07-31
Abstract
Abstract Latching apparatus for retaining a cover in extremely tight engagement with a housing at all points of the cover perimeter, as for a cabinet sealed against radio frequency interference. The apparatus comprises a series of latches spaced about the cover perimeter, each latch including a flat-end bolt on the cover which slides behind a cylindrical strike on the housing. A cable which extends over pulleys and along the perimeter of the cover operates each latch, and a hand or power operated lever moves the cable to operate all latches simultaneously.
Inventors
- 👤 Leo J Emenaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:33
CPC Classifications
E; E05; E05C; E05C9/00; E05C9/06; E05C9/063; E05B; E05B53/00; E05B53/001; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0841
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
185 words
Apparatus for tightly sealing a cover element about an opening in a housing element comprising: sealing means disposed on one of said elements and extending about said opening, said sealing means being compressible between said elements when they are closed on each other to form a seal between them; and a plurality of latches disposed about said opening, each latch including a strike mounted on a first of said elements, a bolt slidably mounted on a second of said elements, and means for sliding said bolt toward and away from said strike; and wherein each of said strikes is substantially cylindrical and each of said bolts has a substanTially flat strike-engaging surface for movement behind said strike, each of said bolts being mounted for slidable movement in a direction substantially parallel to its flat strike-engaging surface; and each of said bolts has a strike-engaging tip mounted to contact said strike at a location behind the axis of said cylindrical strike but substantially in front of the rearmost portion of said strike when said cover is pressed closed but before full compression of said sealing strip.
Claim 2
Dependent Claim
185 words
Apparatus for tightly sealing a cover element about an opening in a housing element comprising: sealing means disposed on one of said elements and extending about said opening, said sealing means being compressible between said elements when they are closed on each other to form a seal between them; and a plurality of latches disposed about said opening, each latch including a strike mounted on a first of said elements, a bolt slidably mounted on a second of said elements, and means for sliding said bolt toward and away from said strike; and wherein each of said strikes is substantially cylindrical and each of said bolts has a substanTially flat strike-engaging surface for movement behind said strike, each of said bolts being mounted for slidable movement in a direction substantially parallel to its flat strike-engaging surface; and each of said bolts has a strike-engaging tip mounted to contact said strike at a location behind the axis of said cylindrical strike but substantially in front of the rearmost portion of said strike when said cover is pressed closed but before full compression of said sealing strip.
Claim 3
Dependent Claim
159 words
Apparatus for tightly sealing a cover element about an opening in a housing element comprising: sealing means disposed on one of said elements and extending about said opening, said sealing means being compressible between said elements when they are closed on each other to form a seal between them; and a plurality of latches disposed about said opening, each latch including a strike mounted on a first of said elements, a bolt slidably mounted on a second of said elements, and means for sliding said bolt toward and away from said strike; and wherein at least a portion of each of said strikes is substantially cylindrical, and each of said bolts has a tip mounted to engage said strike a distance spaced behind the axis of said cylindrical portion by on the order of one-half the radius of said cylindrical portion, when said cover is closed to a position where said sealing means first begins to be substantially compressed.
Claim 4
Dependent Claim
159 words
Apparatus for tightly sealing a cover element about an opening in a housing element comprising: sealing means disposed on one of said elements and extending about said opening, said sealing means being compressible between said elements when they are closed on each other to form a seal between them; and a plurality of latches disposed about said opening, each latch including a strike mounted on a first of said elements, a bolt slidably mounted on a second of said elements, and means for sliding said bolt toward and away from said strike; and wherein at least a portion of each of said strikes is substantially cylindrical, and each of said bolts has a tip mounted to engage said strike a distance spaced behind the axis of said cylindrical portion by on the order of one-half the radius of said cylindrical portion, when said cover is closed to a position where said sealing means first begins to be substantially compressed.
Claim 5
Dependent Claim
49 words
The apparatus described in claim 2 wherein: said bolt has a flat portion for movement behind said strike, said tip being located substantially at one end of said flat portion, and said bolt is slidably mounted so that it slides in a direction substantially parallel to said flat portion.
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |