US3825155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the injection of plastic materials
Assignee: Individual
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Filing: 1972-05-18
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Granted: 1974-07-23
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Expires: 1992-05-18
Abstract
Abstract The invention is an apparatus for the injection of pasty materials such as thermoplastic materials, the apparatus including an injection cylinder formed with a material-receiving chamber and an extruder having an outlet face defining an outlet opening for the material. A connecting transfer plate is secured to the injection cylinder in a manner to extend laterally of the cylinder. It is also mounted on the extruding device for pivotal action of the latter about an axis extending laterally of the axis of the injection cylinder. The pivotal action is between an open position wherein the outlet face of the extruder stands free of one face of the transfer plate and a closed position wherein the said one face of the transfer plate stands flat against the outlet face of the extruder. The transfer plate is secured in releasable manner in closed position and has a communication channel for the flow of pasty materials, the channel extending from the outlet opening of the extruder outlet face and opening into the material receiving chamber whereby it becomes accessible for inspection when the apparatus is in open position.
Inventors
- 👤 G Morault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:06
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/53; B29C45/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
196 words
An apparatus for the injection of plastic materials comprising: a. an extruding device; b. an injection cylinder having a piston therein and a motor actuating said piston; c. a plate connected with said injection cylinder and having a portion extending laterally of said injection cylinder, said extruding device being releasably connected with said laterally extending portion; d. a communication channel in said plate, said communication channel extending between said extruding device and said injection cylinder; e. said plate being movable between an open and closed position with respect to said extruding device; f. said extruding device having a faCe at one end; g. said laterally extending portion of said plate including a cavity on one side of said plate, said cavity communicating with said communication channel; h. said laterally extending portion of said plate including a part removably and adjustably mounted in said cavity, said removable part having a face disposed substantially in the plane of said one side of said plate and said face of said extruding device when said plate is in the closed position, said part being removable when said plate is in the open position to facilitate access to said communication channel.
Claim 2
Independent Claim
196 words
An apparatus for the injection of plastic materials comprising: a. an extruding device; b. an injection cylinder having a piston therein and a motor actuating said piston; c. a plate connected with said injection cylinder and having a portion extending laterally of said injection cylinder, said extruding device being releasably connected with said laterally extending portion; d. a communication channel in said plate, said communication channel extending between said extruding device and said injection cylinder; e. said plate being movable between an open and closed position with respect to said extruding device; f. said extruding device having a faCe at one end; g. said laterally extending portion of said plate including a cavity on one side of said plate, said cavity communicating with said communication channel; h. said laterally extending portion of said plate including a part removably and adjustably mounted in said cavity, said removable part having a face disposed substantially in the plane of said one side of said plate and said face of said extruding device when said plate is in the closed position, said part being removable when said plate is in the open position to facilitate access to said communication channel.
Claim 3
Dependent Claim
60 words
An apparatus as defined in claim 1 wherein one surface of said removable part comprises one portion of said communication channel, said one surface having a curved profile and being continuous with the other portion of said communication channel, said other portion having a linear configuration, whereby removal of said part facilitates removal of hardened material from said communication channel.
Claim 4
Dependent Claim
77 words
An apparatus according to claim 1, including an extruding annulus disposed in said extruding device at said one end thereof, said annulus having a flat end face protruding from said face of said extruding device when said plate is in the open position, said face of said removable part and said one side of said plate compressibly engaging said end face of said extruding annulus to provide a tight seal between said extruding device and said plate.
Claim 5
Independent Claim
171 words
An apparatus for the injection of plastic materials comprising: a. an extruding device; b. an injection cylinder having a piston therein and a motor actuating said piston; c. a plate connected with said injection cylinder and having a portion extending laterally of said injection cylinder, said extruding device being releasably connected with said laterally extending portion; d. a communication channel in said plate, said communication channel extending between said extruding device and said injection cylinder; e. a piston rod drivingly connecting said piston with said motor; f. said plate including a bore therein, said piston rod extending through said bore; g. a ring disposed in said bore for slidable, sealing cooperation with said piston rod, said ring having a surface comprising one end of said injection cylinder; h. said surface of said ring having such form and being so disposed with respect to said communication channel as to provide a flow path effecting a gentle transition in the direction of flow of material from said communication channel into said injection cylinder.
Claim 6
Independent Claim
171 words
An apparatus for the injection of plastic materials comprising: a. an extruding device; b. an injection cylinder having a piston therein and a motor actuating said piston; c. a plate connected with said injection cylinder and having a portion extending laterally of said injection cylinder, said extruding device being releasably connected with said laterally extending portion; d. a communication channel in said plate, said communication channel extending between said extruding device and said injection cylinder; e. a piston rod drivingly connecting said piston with said motor; f. said plate including a bore therein, said piston rod extending through said bore; g. a ring disposed in said bore for slidable, sealing cooperation with said piston rod, said ring having a surface comprising one end of said injection cylinder; h. said surface of said ring having such form and being so disposed with respect to said communication channel as to provide a flow path effecting a gentle transition in the direction of flow of material from said communication channel into said injection cylinder.
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |