|Publication number||US2955530 A|
|Publication date||Oct 11, 1960|
|Filing date||Mar 24, 1959|
|Priority date||Mar 24, 1959|
|Publication number||US 2955530 A, US 2955530A, US-A-2955530, US2955530 A, US2955530A|
|Inventors||Nilo Dominick J|
|Original Assignee||Sebastian C Gaeta|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (2), Referenced by (52), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
D. J. NILO TISSUE PRESS Filed March 24, 1959 Oct. 11, 1960 IN V EN TOR.
BY w w mm mm r' 2,955,530 Patented Oct. 11 1966 -i 'rrssun PRESS Dominick I. Nilo, Somerville,'Mass., assignor of one- 'halfto Sebastian C, Gaeta, Medford, Mass.
Filed Mar.- 24, '1959,-Ser.- No. 801,563 t a 3 Claims. (Cl. 100-289) This invention relates to a tissue press or mincer for extracting pulp and juices from materials such as animal or human tissue, especially for use in bio-chemical research.
One object of my invention is to provide such a tissue press that enables the user to easily assemble the parts and easily disassemble them.
Another object is to provide such a press that will retain a relatively delicate part, such as a piston, in predetermined position on a removable, actuating stern without any possibility that it will involuntarily fall off in disassembling my press.
The foregoing and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and arrangement of parts such as is disclosed by the drawing. The nature of the invention is such as to render it susceptible to various changes and modifications, and therefore, I am not to be limited to the construction disclosed by the drawing nor to the particular parts described in the specification; but am entitled to all such changes therefrom as fall within the scope of my claims.
In the drawing:
Fig. 1 is a side elevational view of my tissue press.
Fig. 2. is a sectional view taken on the line 2-2 of Fig. 1.
Fig. 3 is a front end elevational view of said press.
Fig. 4 is an end elevational view of the piston used in my press.
Fig. 5 is a sectional view taken on the line 5--5 of Fig. 4.
Fig. 6 is an end elevational view of the locking ring used in my press.
Fig. 7 is a sectional view taken on the line 7-7 of Fig. 6.
As illustrated, my tissue press has a hollow cylindrical body 10 which is exteriorly screw-threaded at its outer end, as at 12, upon which an interiorly screwthreaded, retaining cap 14 fits. The latter has an inwardly extending flange 15 at its outer end, and within said cap 14 is a removable strainer 16 for straining the tissue. The opposite or inner end of said body 10 is also exteriorly screw-threaded as at 20.
An exteriorly screw-threaded, actuating stem 22 has a handle 24' at its outer end pinned, as at 25, to it. Said handle has a hollow collar portion 26 that receives and holds an end portion of said stem 22. At its inner end said stem 22 has connecting means shown as an integral connector having a shank 28 at the outer end of which is a connector head 30 that is of greater width than said shank.
A locking cap 32 that is interiorly threaded, connects with the outer threads of said stem 22. It has a collar 34 and a wider, annular flange 36that is also interiorly screw-threaded and which connects with the outer end screw-threads of said body and by which it may be screwed to locking position.
A piston 40 having a main body portion 41 has connecting means embodying a reduced connecting end 42 extending from said body in which there is a lateral U-shaped slot extending from the periphery of said end 42 inwardly to a point preferably beyond the center thereof. This slot has an outer portion 44 of a width to receive saidretainer shank 28, but not said head 30, and said slot also has an inner, arcuate portion 46 wide enough to receive said head 30. The outer surface of saidend 42 is screw-threaded as at 48.
In ordinary use'said piston40 remains connected to said stem 22 since locking cap 32 keeps it in predetermined position when the latter is screwed onto said body threads 20. However, the parts of this tissue press are often disconnected, asfor cleaning or sterilizing, and
tainer and falls, which frequently damages it. Accordingly, I provide with this combination, a locking ring 50 that is interiorly screw-threaded as at 52 and connects with said piston connecting end screw-threads 48. This closes the entrance to said piston lateral slot thus keeping said piston in predetermined assembled position.
Said body 10, handle 24 and locking cap 32 have knurled portions K at their outer surfaces, as shown, for convenience in using my press and in assembling and disassembling it.
1. A tissue press comprising a hollow body having exterior screw threads at one end, a retaining cap connected to said body at one end, an exteriorly screwthreaded stem embodying a handle at one end and a connector at the opposite end extending into said body, said connector embodying a shank and a head of greater width than said shank, a piston having a main body and a reduced end extending therefrom having a slot extending laterally inward from the periphery of said reduced end, said slot having two portions one of which that is the nearer to said main body being the larger and into which said head extends, said head being of greater width than the other said slot portion, said shank extending into the latter, whereby said piston and stem are connected, said reduced end having exterior screw threads, a locking ring having interior screw-threads screw-threadedly connected to said reduced end and extending into said body and closing said slot, and an interiorly screw-threaded cap screW-threadedly connected to said stemand embodying a flange having interior screw-threads connected with said body screw-threads.
2. A tissue press comprising :a hollow body having exterior screw-threads at opposite ends, a retaining cap having interior screw threads connected to said body screw-threads at one end, an exteriorly screwathreaded, elongate stern embodying a handle at one end and a connector at the opposite end extending into said body, said connector embodying a shank and a head of greater width than said shank, a piston having a main body and a reduced end extending therefrom having a U-shaped slot extending laterally inward from the periphery of said reduced end, said slot having two portions one of which that is .the nearer to said main body being the larger and into which said head extends, said head being of greater width than the other said slot portion, said shank extending into the latter, whereby said piston and stem are connected, said reduced end having exterior screwthreads, a locking ring having interior screw-threads screw-threadedly connected to said reduced end and extending into said body and closing said slot, and an interiorly screw-threaded cap screw-threadedly connected to said stem and embodying a flange having interior screw-threads connected with said body screw-threads at the end opposite said retaining cap.
3. A tissue press comprsing a hollow body having exterior screw threads opposite one end, a retaining cap having interior screw-threads connected to said body screw threads at one end, an exteriorly screw-threaded,
elongate stem embodying a handle at one end and a connector 'at the opposite end extending into said body, said connector embodying a shank and a circular head of greater width than said shank, a piston having a main body and a reduced end extending therefirom having a slot extending laterally inward from the periphery of said reduced end, beyond the center thereof, said'slot having two portions one of which that is the nearer to said main body being arcuate-shaped and the larger and into which said head extends, said head being of greater width than the other said slot portion, said shank extending into the vlatter, whereby said piston and stem are .7 4 A a connected, said reduced end having exterior screw-threads, a locking ring having interior screw-threads screw-threadedly connected to said reduced end and extending into said body and closing said slot, and an interiorly screwthreaded cap screw-threadedly connected to said stem and embodying a flange having interior screw-threads connected with said body screw-threads at the end opposite said retaining cap,
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|U.S. Classification||100/289, 600/573, 425/458, 100/116, 100/125|