Patent US3741441A successfully refreshed from Google Patents.
US3741441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for dispensing epoxy
Assignee: Individual
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Filing: 1970-12-02
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Granted: 1973-06-26
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Expires: 1990-12-02
Abstract
Abstract A method and apparatus for mixing and dispensing liquid resin and catalyst in predetermined quantities for filling battery case tops or similar devices wherein the contents of, and the connections thereof, are encased and sealed in solidified resin material. The device has a mixing and dispensing head in which a convoluted member is rotatably disposed for mixing and delivering a mixture of resin and catalyst toward a discharge opening. The convoluted member has a valve member on the lower end thereof and is movable longitudinally of the head toward and away from a valve seat in the discharge opening for opening and closing same.
Inventors
- 👤 W Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:59
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/74; B29B7/7476; B29B7/748; B29B7/30; B29B7/34; B29B7/38; B29B7/40; B29B7/42
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
33 words
The combination called for in claim 1 wherein the means to rotate the member in the passage comprises a motor having a shaft; and means to connect the shaft to the said member.
Claim 2
Dependent Claim
44 words
The combination called for in claim 2 wherein the means to move the member longitudinally in the passage comprises means to change the length of the means to connect the shaft to the member to cause said member to move relative to the motor.
Claim 3
Dependent Claim
21 words
The combination called for in claim 1 wherein the valve means comprises a ball secured to an end of the member.
Claim 4
Dependent Claim
32 words
The combination called for in claim 1 wherein the means to move the member to move the valve means comprises pressure actuated means adapted to selectively urge the member in opposite directions.
Claim 5
Dependent Claim
40 words
The combinatIon called for in claim 1 wherein the means to move the member to move the valve means comprises means actuated by centrifugal force when the convoluted member is rotated to impart force longitudinally of the rotating con-voluted member.
Claim 6
Dependent Claim
62 words
The combination called for in claim 1 wherein the means to move the member to move the valve means comprises a threaded shaft; a coupling having a large moment of inertia threadedly connected to said shaft such that initial rotation of the shaft imparts movement of the coupling longitudinally of the shaft before overcoming the inertia of the coupling to rotate same.
Claim 7
Dependent Claim
141 words
In a device of the class described, a container for liquid resin; a container for catalyst; separate circulation conduits for the catalyst and resin; means to circulate fluid through each of the conduits; a heater device arranged in heat exchange relation with each conduit; heat sensor means in heat exchange relation with each of said circulation conduits; means to operably connect the heat sensor means to the heater device to control the temperature of the fluid as it flows through each conduit; a mixing and dispensing head having inlet passages arranged to be simultaneously placed in communication with the conduits, said head having an outlet passage; dispensing valve means in said outlet passage; and separate valve means between the head and the conduits arranged to operate in unison to simultaneously bring the conduits into communication with the interior of the head.
Claim 8
Dependent Claim
45 words
The combination called for in claim 8 wherein the mixing and dispensing head includes a central passage therethrough into which the resin and catalyst are injected; a rotatable member having spiral convolutions on the outer surface thereof; and motor means for rotating said convoluted member.
Claim 9
Dependent Claim
147 words
In a device of the class described, separate circulation conduits for catalyst and resin; means to circulate fluid through each of the conduits; heater means in heat exchange relation with portions of said conduits to maintain the fluids at a pre-selected temperatures as it flows through the said conduits; a mixing and dispensing head arranged to be simultaneously placed in communication with the conduits, said head having an outlet opening; means to open and close said opening; valve means between the head and conduits arranged to simultaneously bring the conduits into communication with the interior of the head; and control means operably connected to the heater and to the means to circulate fluid through the conduits, said control means having an off position, a first position arranged to activate the heater means, and a second position arranged to activate the means to circulate fluid through the conduits.
Claim 10
Dependent Claim
107 words
In a device of the class described, a container for liquid resin; a container for catalyst; separate circulation conduits for the catalyst and resin; means to circulate fluid through each of the conduits; a rod extending through a portion of each circulation conduit; means to heat each of said rods; convolutions on the outer surface of said rods to cause spiral movement of fluid as it passes thereabout in each conduit; a mixing and dispensing head arranged to be placed in communication with the conduits; and valve means between the head and the conduits arranged to bring the conduits into communication with the interior of the head.
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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |