US3850265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating device
Assignee: Sherwin Williams Co
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Filing: 1970-08-21
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Granted: 1974-11-26
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Expires: 1990-08-21
Abstract
Abstract A lubricating device for foundry molding machines and the like which includes a distributor valve having an air operated diaphragm operative on each cycle of the machine to force a measured quantity of lubricant to each of a plurality of machine components requiring lubrication.
Inventors
- 👤 W Blower
- 👤 A Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:43
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/30; F16K; F16K31/00; F16K31/12; F16K31/126; F16K31/1266; F16N7/38; F16N7/385; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87708; Y10T137/87716; Y10T137/87829; Y10T137/87837; Y10T137/87845
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
A lubricator for machinery including a distributor device having at least one distribution line leading therefrom, a diaphragm in said distributor device, an air chamber on one side of said diaphragm and a lubricant chamber on the other side of said diaphragm, and stop means to limit diaphragm movement, said stop means including two opposed outwardly projecting members on each side of said diaphragm adapted alternately to engage shoulders in said air chamber and said lubricant chamber in accordance with the pressure in said air chamber, whereby when said air chamber is pressurized a predetermined quantity of lubricant is forced by the diaphragm from said lubricant chamber through said distribution line.
Claim 2
Dependent Claim
111 words
A lubricator for machinery including a distributor device having at least one distribution line leading therefrom, a diaphragm in said distributor device, an air chamber on one side of said diaphragm and a lubricant chamber on the other side of said diaphragm, and stop means to limit diaphragm movement, said stop means including two opposed outwardly projecting members on each side of said diaphragm adapted alternately to engage shoulders in said air chamber and said lubricant chamber in accordance with the pressure in said air chamber, whereby when said air chamber is pressurized a predetermined quantity of lubricant is forced by the diaphragm from said lubricant chamber through said distribution line.
Claim 3
Dependent Claim
46 words
A lubricator as set forth in claim 1 wherein said distributor device includes a cap and block secured together with said diaphragm therebetween, an air passage in said cap and a lubricant passage in said block, each connected by a transverse passage to the respective chamber.
Claim 4
Dependent Claim
22 words
A lubricator as set forth in claim 1 including a machine control valve operative alternately to pressurize and vent said air chamber.
Claim 5
Dependent Claim
129 words
A lubricator for machinery including a distributor device having at least one distribution line leading therefrom; a diaphragm in said distributor device; said distributor device including a cap and block secured together with said diaphragm therebetween; an air passage in said cap and a lubricant passage in said block; a plurality of paired air and lubricant chambers on opposite sides of said diaphragm, each being connected by a transverse passage to said air and lubricant passages in said cap and block, respectively, with each lubricant chamber communicating with a distribution line during pressurization of said air chamber; and stop means to limit diaphragm movement, whereby when said air chambers are pressurized a predetermined quantity of lubricant is forced by said diaphragm from said lubricant chambers through said distribution line.
Claim 6
Dependent Claim
129 words
A lubricator for machinery including a distributor device having at least one distribution line leading therefrom; a diaphragm in said distributor device; said distributor device including a cap and block secured together with said diaphragm therebetween; an air passage in said cap and a lubricant passage in said block; a plurality of paired air and lubricant chambers on opposite sides of said diaphragm, each being connected by a transverse passage to said air and lubricant passages in said cap and block, respectively, with each lubricant chamber communicating with a distribution line during pressurization of said air chamber; and stop means to limit diaphragm movement, whereby when said air chambers are pressurized a predetermined quantity of lubricant is forced by said diaphragm from said lubricant chambers through said distribution line.
Claim 7
Dependent Claim
33 words
A lubricator as set forth in claim 4 including a compression spring in each lubricant chamber operative to return said diaphragm to a planar condition when said passage in said cap is vented.
Claim 8
Dependent Claim
39 words
A lubricator as set forth in claim 5 including a check valve in each transverse passage between the respective lubricant chamber and the lubricant passage in said block restricting flow of lubricant from the chamber to the lubricant passage.
Claim 9
Dependent Claim
35 words
A lubricator as set forth in claim 5 including a lubricant outlet passage for each lubricant chamber, and a check valve in each outlet passage restricting lubricant flow from the outlet passage to the chamber.
Claim 10
Dependent Claim
22 words
A lubricator as set forth in claim 4 including a machine control valve operative alternately to pressurize and vent said air passage.
Claim 11
Dependent Claim
151 words
A lubricator for machinery including a distributor device having at least one distribution line leading therefrom; a diaphragm in said distributor device; an air chamber on one side of said diaphragm and a lubricant chamber on the other side of said diaphragm; stop means to limit diaphragm movement including two opposed outwardly projecting members on each side of said diaphragm adapted alternately to engage shoulders in said air and lubricant chambers in accordance with the pressure in said air chamber; and a spring in said lubricant chamber to urge said diaphragm to a planar condition with said projecting member in said air chamber engaging the shoulder therein, said spring being centered by a shaft connected at one end to the projecting member in said lubricant chamber; whereby when said air chambEr is pressurized a predetermined quantity of lubricant is forced by the diaphragm from said lubricant chamber through said distribution line.
Claim 12
Dependent Claim
151 words
A lubricator for machinery including a distributor device having at least one distribution line leading therefrom; a diaphragm in said distributor device; an air chamber on one side of said diaphragm and a lubricant chamber on the other side of said diaphragm; stop means to limit diaphragm movement including two opposed outwardly projecting members on each side of said diaphragm adapted alternately to engage shoulders in said air and lubricant chambers in accordance with the pressure in said air chamber; and a spring in said lubricant chamber to urge said diaphragm to a planar condition with said projecting member in said air chamber engaging the shoulder therein, said spring being centered by a shaft connected at one end to the projecting member in said lubricant chamber; whereby when said air chambEr is pressurized a predetermined quantity of lubricant is forced by the diaphragm from said lubricant chamber through said distribution line.
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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |