Patent US2368318A successfully refreshed from Google Patents.
US4418830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moisture and dust seal arrangement for a portable radio or the like
Assignee: Motorola Solutions Inc
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Filing: 1981-08-27
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Granted: 1983-12-06
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Expires: 2001-08-27
Abstract
Abstract An improved moisture and dust seal assembly is disclosed which is especially suited for application in small hand-held radio apparatus or the like which includes a molded plastic enclosure. A vertical wall is provided on one of the mating members forming the enclosure, such as the cover. The wall has essentially right angle corners and is adapted to receive a standard O-ring thereabout. The assembly is completed by affixing a ribbon-like member, in the form of a closed loop, to the top of the verticle wall. The ribbon-like member extends a predetermined distance beyond the edge of the verticle wall to form a groove-like space for retaining the O-ring. The ribbon-like member may be affixed to the top of the wall by a convenient heat staking operation.
Inventors
- 👤 John C. Dzung
- 👤 Harry J. Perkey
- 👤 George J. Schmitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/38; H04B1/3827; H04B1/3833; H04B1/06; H04B1/08; H04B1/086
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
198 words
An improved moisture and dust seal arrangement for an apparatus having a molded plastic enclosure formed by first and second mating members, including in combination: an inturned lip and an inwardly spaced upstanding vertical wall included on one of the enclosure members in the form of a closed loop configuration and spaced from the outer edge of said one enclosure member, a plurality of right angle corners and a plurality of stake posts positioned about said closed loop vertical wall; an O-ring positioned about the upstanding vertical wall and retained thereon by the elasticity of the O-ring; and a flat ribbon-like member in the form of a closed loop overlying said vertical wall and cooperating with said stake posts to comprise an assembly wherein a portion extends outwardly a predetermined distance from the edge of said wall in a manner to form a groove-like space to retain said O-ring; and said other enclosure member having an outer edge lip portion received in said space between said inturned lip of said one enclosure member and said O-ring positioned about said upstanding vertical wall to compress said O-ring in a lateral direction and form an effective moisture and dust seal.
Claim 2
Dependent Claim
198 words
An improved moisture and dust seal arrangement for an apparatus having a molded plastic enclosure formed by first and second mating members, including in combination: an inturned lip and an inwardly spaced upstanding vertical wall included on one of the enclosure members in the form of a closed loop configuration and spaced from the outer edge of said one enclosure member, a plurality of right angle corners and a plurality of stake posts positioned about said closed loop vertical wall; an O-ring positioned about the upstanding vertical wall and retained thereon by the elasticity of the O-ring; and a flat ribbon-like member in the form of a closed loop overlying said vertical wall and cooperating with said stake posts to comprise an assembly wherein a portion extends outwardly a predetermined distance from the edge of said wall in a manner to form a groove-like space to retain said O-ring; and said other enclosure member having an outer edge lip portion received in said space between said inturned lip of said one enclosure member and said O-ring positioned about said upstanding vertical wall to compress said O-ring in a lateral direction and form an effective moisture and dust seal.
Claim 3
Dependent Claim
31 words
An improved moisture and dust seal arrangement in accordance with claim 1 wherein said plurality of stake posts include reduced neck portions for extending into corresponding apertures in said ribbon-like member.
Claim 4
Dependent Claim
35 words
An improved moisture and dust seal arrangement in accordance with the claim 2 wherein said neck portions are melted by heat staking to permanently affix said ribbon-like member to the top of such vertical wall.
Claim 5
Dependent Claim
22 words
An improved moisture and dust seal arrangement in accordance with claim 1 wherein said O-ring is fabricated from an impregnated lubricant compound.
References Cited (Backward Citations)
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US3162813A
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US3258151A
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US3346812A
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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) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |