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Publication numberUS3653338 A
Publication typeGrant
Publication dateApr 4, 1972
Filing dateSep 17, 1970
Priority dateSep 17, 1970
Publication numberUS 3653338 A, US 3653338A, US-A-3653338, US3653338 A, US3653338A
InventorsSauey William R
Original AssigneeFlambeau Plastics Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Hollow polyethylene rolling pin
US 3653338 A
Abstract
An improved rolling pin is provided which includes a hollow cylindrical center member formed of polyethylene and adapted to contain a freezable gel which includes an aqueous celluosic filler. A pair of hollow handles are provided for sealing the ends of the hollow cylindrical center member. The hollow handles are adapted to contain an insulating material such as polystyrene for insulating the freezable gel.
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Description  (OCR text may contain errors)

O United States Patent [151 3,653,338 Sauey [4 1 Apr. 4, 1972 [54] HOLLOW POLYETHYLENE ROLLING 2,683,428 7/1954 Neal .107/50 PIN 2,721,524 10/1955 Osborn ..107/50 [72] Inventor: William R. Sauey, Baraboo, Wis. primary p Lawson [73] Assigneez Flambeau Plastics Corporation 4ttorney--Mol1nare, Allegretti, New1tt& Wltcoff [22] Filed: Sept. 17, 1970 [57] ABSTRACT [21] Appl. No.: 73,055 An improved rolling pin is provided which includes a hollow cylindrical center member formed of polyethylene and adapted to contain a freezable gel which includes an aqueous [52] US. Cl ..29 /110.5 celluosic fm A i of hollow handles are provided for Seal 1 3/00 ing the ends of the hollow cylindrical center member. The hol- [58] Field of Search 107/50 1 handles are adapted to contain an insulating material such as polystyrene for insulating the freezable gel. [56] References Cited 5 Claims, 2 Drawing Figures UNITED STATES PATENTS 2,673,532 3/1954 Stair ..l07/50 BACKGROUND OF THE INVENTION The present invention relates to an improved rolling pin article. It is well known in the prior art to provide a rolling pin article which includes generally a center cylindrical member and two handles, one at either end of the center member. The handles are provided to be gripped by the operator who may roll out and shape a piece of dough such as a pie crust or the like. One problem with such rolling pins is related to the release characteristics of the rolling pin surface. An uneven rolling pin surface or a wann rolling pin surface generally results in the sticking of the doughy material to the rolling pin. To remedy this problem, rolling pins have been provided with hollow center sections which contain dry ice or water for chilling the surface of the rolling pin. Other rolling pins have been provided with smooth surface. For example, one such pin employs a thin film of polytetra-fluoroethylene, which is produced by E. I. du Pont de Nemours & Company under the trademark TEFLON.

Such rolling pins, while functioning generally to provide improved release characteristics for the surface of the rolling pin, have disadvantages. For example, a rolling pin which uses water, ice or dry ice as a coolant, must have the coolant replaced from time to time. A disadvantage of a material such as dry ice is that is produces carbon dioxide gas on heating which can build up to undesirable pressures within the rolling Accordingly, it is desirable to provide a rolling pin having a smooth rolling surface and containing coolant for maintaining the surface of the pin in a chilled condition and which may be reused time and again without replacing the coolant contents of the pin. It is also desirable to provide such a rolling pin having handles connected thereto which provide insulators to prevent heat from being transferred to the coolant from the ends of the rolling pin.

SUMMARY OF THE INVENTION The present invention relates generally to an improved rolling pin article comprising a hollow cylindrical member formed of polyethylene having a first and second end, a

freezable gel including an aqueous cellulose filler contained 4 within the hollow cylindrical member and a pair of handles adapted to seal the ends of the hollow cylindrical member so that the gel may be contained securely within the cylindrical member.

In a preferred embodiment, the celluosic filler includes phydroxybenzoic acid methyl ester. Also, in a preferred embodiment each of the handles of the rolling pin is hollow and includes an insulating plug contained therein and formed of polystyrene.

BRIEF DESCRIPTION OF THE DRAWINGS DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT As shown in FIG. 1, the improved rolling pin 10 of this invention includes a hollow cylindrical center member 12. Connected to the ends 14 and 16 of the member 12 are handles 18 and 20. The rolling pin is designed so that the operator may grip the handles 18 and 20 and rotate the surface 22 of the hollow cylindrical member 12 over a doughy material such as pie crust or the like (not shown).

As may be seen from the cross sectional view of FIG. 2, the

center member 12 defines a cavity 24 therein. The section 12 itself 18 formed of polyethylene, a tough and flexible material.

The cavity 24 defined in the center member 12 is adapted to receive a freezable gel for cooling the surface 22 of the member 12. This gel is preferably a celluosic filler and includes a preservative to enable the gel to be reused without spoiling. An example of one composition of the gel is as follows:

Components Quantity H,O (Water) 50 gallons p-hydroxybenzoic acid 8 lbs. 9 ozs.

methylestcr Cellulose Ether 1 oz.

borax 56 oz.

NaCl (Sodium Chloride) A oz.

A slight amount of blue food coloring of the type readily available may be added to color the gel. This gel, when contained within the hollow. center member 12, may be easily frozen in a housewife s freezer. It has the characteristic of absorbing heat slowly after having been frozen so that when it is contained in the hollow center member 12, it maintains the surface 22 of the member 12 in a chilled condition for a substantial time. Also, the rolling pin of this invention with the gel as described can be reused numerous times. In fact, it has been found that a rolling pin and gel made according to the principles of this invention may be reused periodically for a period of two years with no damage being done to the gel or to its heating characteristics or to the rolling pin. 1

Since the handles 18 and 20 of the rolling pin 10 are identical, the description of handle 18 will be equally applicable to handle 20. Handle 18 is a hollow tapering member formed of polyethylene. The handle 18 contains a plug 26 of polystyrene which is sold commercially by the Dow Chemical Company under the trade name STYROFOAM. The polystyrene provides a good seal for the gel contained in the center section 12 as well as an excellent insulator preventing heat from dissipating from the end 14 of the rolling pin 10.

A knurled cap 28 of plastic or other suitable material is threadably connected to the end of the handle 18 to secure the tapered plug 26 within the handle 18. Thus, the tapered plug 26 may be installed within the handle 18 merely by inserting the plug 26 in the handle 18 and screwing on the cap 28.

While in the foregoing there has been described a presently preferred embodiment of the present invention, it is to be understood that modifications may be made to this invention by those skilled in the art without departing from the true spirit and scope of the invention as defined by the appended claims.

What is claimed is:

, 1. An improved rolling pin article comprising, in combinatron:

a hollow cylindrical member formed of polyethylene having a first and a second end;

a freezable gel including an aqueous celluosic filler contained within said hollow cylindrical member; and

a pair of handles adapted to seal said ends of said hollow cylindrical member such that said gel may be contained securely within said member.

2. The rolling pin as set forth in claim 1 wherein said celluosic filler is p-hydroxybenzoic acid methyl ester.

3. The rolling pin as set forth in claim 1 wherein said gel includes Cellulose Ether.

4. The rolling pin as set forth in claim 1 wherein each of said handles is hollow and includes an insulating plug contained therein for insulating said gel.

5. The combination as set forth in claim 4 wherein each of said insulating plugs are formed of polystyrene.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2673532 *Sep 5, 1950Mar 30, 1954Stair Marie RFlour dispensing rolling pin
US2683428 *Apr 3, 1952Jul 13, 1954Neal Earl SRolling pin
US2721524 *Nov 17, 1954Oct 25, 1955Osborn Walter CRolling pin
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4476806 *Aug 31, 1982Oct 16, 1984The United States Of America As Represented By The Secretary Of The Air ForceWet film applicator
US6007481 *Jul 10, 1995Dec 28, 1999Riek; SiegfriedInstrument for the penetration of body tissue with cutting and viewing of body structure
US6585629Jan 12, 2001Jul 1, 2003Wki Holding Company, Inc.Rolling pin with counterweighted eccentric handles
US7052450Apr 22, 2004May 30, 2006Fiesta Products LlcSilicone rolling pin
US7686752Dec 13, 2005Mar 30, 2010Fiesta Products LlcSilicone rolling pin
US7708713Jun 29, 2005May 4, 2010Applied Medical Resources CorporationInsufflating optical surgical instrument
US7722516Feb 10, 2006May 25, 2010Christopher OrladyCold rolling pin system
US7947058Oct 1, 2004May 24, 2011Applied Medical Resources CorporationBladeless optical obturator
US8128590Apr 23, 2010Mar 6, 2012Applied Medical Resources CorporationInsufflating optical surgical instruments
US8267952Apr 12, 2011Sep 18, 2012Applied Medical Resources CorporationBladeless optical obturator
US8377090Aug 15, 2012Feb 19, 2013Applied Medical Resources CorporationBlunt tip obturator
US8506520Sep 29, 2009Aug 13, 2013Applied Medical Resources CorporationTrocar system with laparoscope gas channel
US8517977Oct 8, 2007Aug 27, 2013Applied Medical Resources CorporationVisual insufflation port
US8608768Mar 2, 2012Dec 17, 2013Applied Medical Resources CorporationBlunt tip obturator
US8608769Aug 3, 2012Dec 17, 2013Applied Medical Resources CorporationBladeless optical obturator
US8636759Mar 30, 2010Jan 28, 2014Applied Medical Resources CorporationBladeless obturator
Classifications
U.S. Classification492/14, D07/697, 492/46
International ClassificationA21C3/02, A21C3/00
Cooperative ClassificationA21C3/021
European ClassificationA21C3/02B
Legal Events
DateCodeEventDescription
Jun 5, 1986ASAssignment
Owner name: FLAMBEAU CORPORATION
Free format text: CHANGE OF NAME;ASSIGNORS:FLAMBEAU PLASTICS CORPORATION (CHANGED TO);FLAMBEAU PRODUCTS CORPORATION (CHANGED TO);REEL/FRAME:004558/0388
Effective date: 19860522