Patent US3991902A successfully refreshed from Google Patents.
US3991902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch for pan covers
Assignee: Individual
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Filing: 1975-05-29
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Granted: 1976-11-16
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Expires: 1995-05-29
Abstract
Abstract A simple manually operable sanitary latch is provided to retain a cover on a pan while heating or for lifting the pan by the lid, as particularly useful in an environment such as a restaurant or hospital. The latch comprises two members, one being a U-shaped hook affixed to the cover at the edge, so that it goes under the upper lip of a mating pan. On an opposite edge of the cover is a movable latch member retained by a strap like bracket affixed substantially parallel to the cover, which permits the latch to move normally to the edge of the lid. This movable latch has an outermost hook for registering under the lip of the mating pan and an innermost abuttment member that restricts the extent of movement away from a latched position where the cover can be removed.
Inventors
- 👤 Edward B. Ford, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:46
CPC Classifications
B; B65; B65D; B65D45/00; B65D45/02; B65D45/16; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0945; Y10T292/0951; Y10T292/0956
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
263 words
Sanitary means for adapting a lid to be latched to a mating pan comprising in combination, a lid having an outer rim around the edge thereof and a central indented portion connected by a tapered ledge to said rim, a mating pan having a rim around the edge thereof, two latch members affixed at opposite rims of said lid, the first member consisting of a generally U-shaped hook part affixed at one end to the upper side of said lid with the other end extending below said lid in a position to hook over the rim of said mating pan, and the second latch member consisting of a retainer part in the form of a longitudinal strap oriented generally parallel to the rim of said lid and affixed to the upper side thereof at each end to retain thereunder between the ends a latch part movable to the rim of said pan, said latch part consisting of a strap member formed with a generally U-shaped hook portion at one end thereof positioned to hook under the rim of said pan when positioned adjacent the rim of said lid and formed with a stop member at the other end to engage the lid assembly at a position permitting the movement of said latch part to place its hook far enough away from the rim of said lid to permit the hook portion to clear the rim of said pan wherein said stop member consists of a downward bend on said strap member of said latch part that conforms in shape with said tapered ledge.
Claim 2
Dependent Claim
263 words
Sanitary means for adapting a lid to be latched to a mating pan comprising in combination, a lid having an outer rim around the edge thereof and a central indented portion connected by a tapered ledge to said rim, a mating pan having a rim around the edge thereof, two latch members affixed at opposite rims of said lid, the first member consisting of a generally U-shaped hook part affixed at one end to the upper side of said lid with the other end extending below said lid in a position to hook over the rim of said mating pan, and the second latch member consisting of a retainer part in the form of a longitudinal strap oriented generally parallel to the rim of said lid and affixed to the upper side thereof at each end to retain thereunder between the ends a latch part movable to the rim of said pan, said latch part consisting of a strap member formed with a generally U-shaped hook portion at one end thereof positioned to hook under the rim of said pan when positioned adjacent the rim of said lid and formed with a stop member at the other end to engage the lid assembly at a position permitting the movement of said latch part to place its hook far enough away from the rim of said lid to permit the hook portion to clear the rim of said pan wherein said stop member consists of a downward bend on said strap member of said latch part that conforms in shape with said tapered ledge.
Claim 3
Dependent Claim
28 words
Sanitary means as defined in claim 1 including a lid having a handle thereon for lifting a pan therewith when latched to said lid by said latch part.
Claim 4
Dependent Claim
44 words
Sanitary means as defined in claim 1, wherein said lid is stainless steel having solely the three latch member parts aforesaid, and each of the three latch member parts are formed of stainless steel straps and two are welded in place on said lid.
Claim 5
Dependent Claim
67 words
Sanitary means as defined in claim 1 with said pan having a wall defining an upper peripheral lip at its open upper edge extending substantially in a single plane so that said lip extends outwardly from said wall and is inserted between the two ends of both said two hooks at opposite sides of said lid together with a mating portion of the edge of said lid.
Claim 6
Dependent Claim
34 words
Sanitary means as defined in claim 1, wherein said lid is substantially rectangular in shape and is held in place solely by said two latch members located on two opposite sides of said rectangle.
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) | 1979-11-16 | 1980-05-17 | 1980-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-16 | 1984-05-17 | 1984-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-16 | 1988-05-17 | 1988-11-16 | $7700.00 | Window Closed / Lapsed |