US2581837A

US2581837A - Protective cap mold

Info

Publication number: US2581837A
Application number: US792789A
Authority: US
Inventors: Alvis L Cruise
Original assignee: Individual
Current assignee: Individual
Priority date: 1947-12-19
Filing date: 1947-12-19
Publication date: 1952-01-08
Anticipated expiration: 1969-01-08

Description

Jan. 8, 1952 A. 1.. CRUISE PROTECTIVE CAP MOLD Filed Dec. 19,- 1947 IN V EN TOR.

Alvis L. Cru/lse I Patented Jan. 8, 1952 UNITED STATES PATENT orri'cia PROTECTIVE CAP MOLD Alvis L. Cruise, Marshfield, Mo.

Application December 19, 1947, Serial No. 792,789

8 Claims.

This invention relates to new and useful improvements in molds and the primary object of the present invention is to provide a mold for quickly and readily forming a protective cap that is applied to a pregnant mare for receiving the urinal which is employed in the manufacture of hormones.

Another important object of the present invention is to provide a mold for forming a resilient urinal bag that includes novel and improved means fro providing a rounded edge for the bag formed to prevent injury to the animal on which the same is applied.

A further object of the present invention is to provide a protective cap or bag mold that is extremely small and compact in structure and which may be conveniently assembled or disassembled in a minimum time.

A still further aim of the present invention is to provide a protective cap mold that is simple and practical in construction, strong and reliable in use, neat and attractive in appearance, relatively inexpensive to manufacture, and otherwise 1 well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a group perspective view of the present mold;

Figure -2 is a longitudinal vertical sectional view taken substantially through the center of the present mold in an assembled form; and,

Figure '3 is an end view of the core used in conjunction with the present invention.

Referring now to the drawings in detail, wherein for the purpose of illustration, there is disclosed a preferred embodiment of the present invention, the numeral l represents the lower half of the present mold generally, comprising a substantially rectangular body having spaced parallel side walls l2, and end walls l4 and IS. The upper portion of the lower half It! is provided with an open channel or concavo-convex lower wall I8 that terminates at one end in an arcuate extension 20. The upper arcuate extremity 22 of the extension is integrally formed with a downwardly and inwardly inclined upper wall 24 that is integrally formed with the end wall l4 and the side walls l2, at one end thereof. An open heating chamber 26 is provided in the lower portion of the lower half and may receive electrical heating cells or the like for transmitting heat to the lower wall is of the lower half. It should be noted, that the upper edges 28 of the side walls l2, adjacent the end wall it, are spaced parallel to the lower edges 36 of the side walls l2. However, the upper edges 32 of the side walls l2, adjacent the end wall M, are arcuately formed for a purpose which will later be more fully described.

The numeral 34 represents the core used inconjunction with the present invention generally, comprising a preferably hollow cylindrical body 35 having a concave-convex integral extension 33 at one end that is provided with an arcuate end wall 45. The upper edges 42 of the end-wall id and the extension 38 are arcuately formed and communicate with the arcuate and outwardly inclined edge as at the innermost end of the body 33.

The numeral 46 repersents the upper half of the present mold generally, comprising a pair of spaced parallel side walls 43, and end walls 59 and 52. The lower straight edges 54 of the side walls 43 terminate in lower arcuate edges 5:; that are connected by an integral arcuate plate 58 that is also integrally formed with the end wall Bil. This plate 58 is provided with an irregular longitudinal opening at that conforms to the opening between the arcuate edges 32 of the side walls !2 and the arcuate inner edge of the wall 24.

Integrally formed with the end Wall 52 of the upper half 46, the side walls 48, and the upper inclined extremity 52 of the arcuate plate 58 is a concavo-convex upper wall 64, the upper convex extremity of which is spaced inwardly relative to the upper straight edges 68 of the side walls 48. s It is preferred, that the aligned end walls l6 and 52 of the upper half 46 and the lower half Ill, be provided with arcuate openings 10 facilitating visibility into the core 34 and which will also provide an outlet opening for material entering the said core. The upper half 46 is hollow to provide a heating chamber, and this heating chamber receives suitable electrical heating coils for transmitting heat to the plate 58 and also the upper wall 64.

In practical use of the device, the material that forms the desired finished product, which is preferably raw rubber, is poured into the lower half and more particularly on the walls l8 and 20 of the said lower half. The core 34 is then inserted into thelower half, so that edge 14 of the bodytfi will frictionally engage the end wall 16 of the lower half, and there will exist a space or plenum chamber IE between the lower periph: ery of the extension 38, the lower periphery of the cylindrical body 36 and the walls 20 and I8 of the lower half.

Such a space 16 will define the thickness of the lower portion of the finished product. The upper half 46 is then inserted in position to the lower half l0, so that the plate 58 will frictionally bear, against the wall 2 the edges and 56 of the; side walls til will frictionally engage the upper edges 32 and 28' of the side walls I2, the

. edge 42 of the extension 38 and wall 46, will frictionally engage the arcuate plate 58, the edge 44 of the cylindrical body 36 will frictionall'y engage the upper extremity 62 of the arcuateplate 5B, and the upper periphery of the edge 14 of the core will frictionall engage the end; wall. 52' of the upper half. A further space or plenum chamber 18 is provided between the upper-periphe'ry of the cylindrical body 36 and the upper wall 84 of the upper half. This further chamberiil communicates with chamber 15', and delines the thickness of the upper portion of the finished product. 7

Opposed rigid ears 8!} and 82 carried. by the end walls of the upper half and lower half receive fasteners or the like 84 for removably securing the upper half relative'to the lower half.

Arcuate grooves 8 5 and 88 are provided inthe upper wall 6 3' and. the lower wall [8, adjacent the end walls 52' and 1.6, respectively, to provide an annular. beading about one end of'the finished product. There is also provided complementary and communicating grooves 92) and 92 in the opening til, the inner face of the plate 58, and the upper inner, arcuate edges of the side walls I2 and the wall 24', that will provide a further beading or lip about the remaining edges of the finished product.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood; however, that even though there is herein shown and: described a preferred embodiment of the invention, the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

Having thus described the invention, what is claimed as new is:

l. A- mold for forming a protective cap that is applied to pregnant mares for receiving a urinal,

said mold comprising upper and lower mold mem bers, said mold members having exterior depressions' defining heating chambers, a core interposed between said mold members and having an arcuate opening therein, said upper mold member having a lower concavo-convexedv wall bearing against the edges of said core defining said arcuate opening when a plastic material is charged in the mold about the core, said mold members having first and second end walls, said core having an end abutting the first end walls of said mold members as a plastic material is charged in the mold about the core, said' lower mold member having a concavo-convexed lower walllconforming to the contour of the lowerperiphery of said: core, said upper mold member having an upper concave-convexed wall spaced from said core and fixed to said lower concave--v convexed wall, and means securing the mold members together;

2."Ihe combination of claim 1 wherein said core is hollow and the said end of said core is opened, the first end walls of said mold members having openings communicating with the interior of said core and providing outlet openings for material entering the core.

3. The combination of claim 1 and a first channel provided in the inner surface of the upper wall of said, upper mold. member and a further channel provided in the inner; surface of the lower wall of said lower mold member communicating with said first channel to form a beading about one end of the finished article.

la. A mo1d for forming a protective cap that is to be applied to pregnant mares for receiving a urinal; said mold comprising upper and lower mold; members, said; lower mold member having an upper wall with an elongated recess therein, said upper mold member including a hollow depending portion in registry with the recess, means connecting the mold members, and a core slidably received in said recess and including an arcuate extension having a continuous edge engaging: the depending portion of said upper mold member as a plastic material is charged in the recess about the core;

5. A mold comprising upper and lower interconnected mold members and a core interposed between and removable from the mold members, said lower mold member including an upper wall having a longitudinal recess therein and an end wall, said upper moldmember including a hollow depending portion in registry with" the recess and contacting the upper Wall of said lower mold member, said upper mold-member also including an end wall supported on the end: wall of, said lower mold member, said core being hollow throughout its length and having an, end engaging the end walls of said mold members, said core being disposed within the recess and including a concaVo-oonvexedextension for engaging the depending portion of saidupper mold member'as a: plastic material is: charged in the recess andlabout the core. I

6. A protective cap mold comprising upper and lowermold members; said lower mold member having first and second end walls and a pair. of sidewalls; an upper wall integrallyformed with the second end wall of said lower mold member; a concavoeconvexed lower wall integrally formed with said upper wall, said side walls and said first encl- Wall; said upper mold, memberhaving a pair of side walls and first and second end walls; the end walls of said' upper mold member engaging and being supported; on the end walls of the lower mold member; an elongated concavoeconvexed plate integrally. formedi'with the second end wall of said'upper mold member and therside walls thereof: and: having a portion contacting the upper wall of said: lower mold member; a concavoeconvexed upper wall integrally formed with the first end wall of? said upper mol'd' member and the side walls thereof; said concavo-convexed upper wallbeing integrally formed with said plate; a sleeve-like core posittioned between said upper and lower mold members and having one end abuttingthe first end walls of the'mold members; said oorelhaving an arcuate extension at its: other end; said extension having a continuous edge adapted to abut the under surface of said .concavo-convexed"low er wall of said lower mold member as aplasti'c material is charged between said mold members and about the core; and means detachably' se curing said moldmemberstogether.

'7. The combination of claim 6 wherein said core is hollow throughout its length, and outlet openings provided in the first end walls of said mold members for excess plastic material entering the core.

8. The combination of claim 6 wherein said upper concavo-convexed Wall includes a groove of uniform depth in its concave surface; said lower wall of said lower mold member also having a groove of uniform depth in its concave surface communicating with the groove in said upper concavo-convexed wall to form a channel for plastic material charged in the mold about the core; said grooves being disposed adjacent the first end walls of said mold members.

ALVIS L. CRUISE.

6 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number 7 Name Date 717,604 Oelkers Jan. 6, 1903 1,040,737 Murray Oct. 8, 1912 1,198,874 Sloper Sept. 19, 1916 1,231,645 Pfeifier July 3, 1917 1,567,479 Wilhelmi Dec. 29, 1925 1,775,812 Church Sept. 16, 1930 1,881,248 Steppe et a1 Oct. 4, 1932 2,027,165 Grubman Jan. 7, 1936