Patent US3842939A successfully refreshed from Google Patents.
US3842939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease box for dispensing lubricant
Assignee: SATZINGER GEBHARDT METALL
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Filing: 1972-08-07
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Granted: 1974-10-22
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Expires: 1992-08-07
Abstract
Abstract An improvement in a grease box comprising a casing having a closed expandable hollow body therein, said hollow body containing electrolytic fluid into which a galvanic element is advanceable to produce gas under pressure to effect expansion of said hollow body which in turn effects dispensation of lubricant out of a chamber in said grease box, which improvement comprises a slidingly displaceable insert within said casing, a lip seal disposed between said insert and said casing, said insert engageable by the wall of said hollow body.
Inventors
- 👤 R Satzinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:14
CPC Classifications
F; F16; F16N; F16N11/00; F16N11/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
In a grease box comprising a casing having a closed expandable hollow body therein, said hollow body containing electrolytic fluid into which a galvanic element is advanceable to produce gas under pressure to effect expansion of said hollow body which, in turn, effects dispensation of a lubricant out of a chamber in said grease box, the improvement which comprises a slidingly displaceable insert within said casing comprising a gas tight lip seal, said lip seal disposed between a portion of said expandable hollow body and said casing, means to maintain said lip seal in sliding position within said casing, said insert engageable by the expandable wall of said hollow body and movable in response to forces of expansion on the walls of said hollow body.
Claim 2
Dependent Claim
125 words
In a grease box comprising a casing having a closed expandable hollow body therein, said hollow body containing electrolytic fluid into which a galvanic element is advanceable to produce gas under pressure to effect expansion of said hollow body which, in turn, effects dispensation of a lubricant out of a chamber in said grease box, the improvement which comprises a slidingly displaceable insert within said casing comprising a gas tight lip seal, said lip seal disposed between a portion of said expandable hollow body and said casing, means to maintain said lip seal in sliding position within said casing, said insert engageable by the expandable wall of said hollow body and movable in response to forces of expansion on the walls of said hollow body.
Claim 3
Dependent Claim
21 words
An improvement according to claim 1 wherein at least a part of the grease box is made of a transparent material.
Claim 4
Dependent Claim
39 words
An improvement according to claim 2 wherein the portion of the grease box made of transparent material is a funnel-shaped bottom wall provided with an opening for dispensation of grease from said grease box to the point of lubrication.
Claim 5
Dependent Claim
31 words
An improvement according to claim 1 wherein a plurality of parts comprising said insert are held together by a reinforcing seam and the lip seal lies between said plurality of parts.
Claim 6
Dependent Claim
35 words
An improvement according to claim 1 wherein the dividing insert comprises a number of parts and that part of the insert coming in contact with lubricant is sprung into the other parts of said insert.
Claim 7
Dependent Claim
45 words
An improvement according to claim 1 wherein said lip seal is positioned in said casing between an overlying generally circular member slidingly engaging the interior side walls of said casing and an underlying generally circular member slidingly engaging the interior side walls of said casing.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |