This is an appeal from the decision of the Patent Office Board of Appeals, adhere to on reconsideration, affirming the rejection of claims 10, 13-15, 18 and 24 of appellant’s application entitled “Dispensing Attachment for Pressurized Containers.”1 Eleven claims have been allowed, and appellant has not appealed with respect to several additional rejected, claims.
The invention relates to a heating chamber attached to a pressurized container, for example, a shaving cream aerosol container. Appellant discloses several embodiments of the heating chamber, and figures illustrating some of these' embodiments are reproduced below. They are all, however, of a “fixed size” hi order to keep the shaving cream in the *1200heating chamber under essentially the same pressure as the aerosol container and thus prevent foaming of the cream until after heating. That is, the unfoamed cream is admitted to the heating chamber, heated by running hot water over the heating chamber, and then allowed to foam as it is dispensed into the user’s hand.
There are two principal issues on appeal. The first concerns the rejection of claims 10,13-15, and 18 under 35 USC 103 as unpatentable over Jolly 2 in view of Bullard.3 Claim 10 is illustrative of the claims rejected under 35 USC 103:
10. A dispensing attachment for a pressurized container having a discharge valve comprising, a fitment having an inlet passageway, which passageway makes a pressure-tight, press-fitted, frictional connection with the hollow stem of said discharge valve, said frictional connection alone being strong enough so that the fitment is held thereby to the discharge valve in pressure-tight contact, a heating chamber of fixed size having a lieat-eonductive wall and being in communication with said inlet passageway, an outlet passageway in communication with said chamber and a valve in said outlet passageway, said chamber being adapted to be filled upon actuation of said discharge valve and discharge upon actuation of said valve in said outlet passageway.
Jolly discloses a beating chamber for attachment to a pressurized container, which is best shown in Fig. 1 of that patent:
*1201
*1202Shave cream enters the lower part 68 of chamber 70 through passageway 93 and exerts pressure on piston 72 which has a spring 76 seated on it to constantly bias the piston in a downward direction. It is disclosed that “As the pressure builds up in the lower part of chamber 70, the piston 72 lifts, but valve element 92 remains stationary. When the valve element 92 enters the bore 84 of passageway 93, no additional shaving soap can enter the passageway 93.” The entire heating chamber may then be submerged in hot water to warm the shave cream.
Bullard was relied upon by the examiner to illustrate several of the additional claimed limitations not shown by the Jolly reference, including the fact that the shape of a heating chamber may have less height than breadth.
Since we agree with the Patent Office that these various limitations would have been obvious to one of ordinary skill in the art from the art of record, we see no need to discuss Bullard further. Bather, we will concern ourselves primarily with appellant’s main contention, i.e., that Jolly dose not disclose .a chamber of “fixed size” as called for in claims 10,13-15, and 18.
In response to that argument, the board, on reconsideration, stated:
Tlie heating chamber of tlie Jolly device has a fixed size as determined by valve member 92 and the upper end of bore 84. The claim does no-t exclude a maximum fixed size. Furthermore, we are still of the opinion that Jolly’s warmer 26 having a container 28 presents a chamber 70 of fixed size which could be used without piston 72 and the related parts which provide control for the expanding lather.
This quote from the board’s opinion indicates that two rationales were used to affirm the rejection. The first is that the Jolly chamber can be considered as having a “fixed size” as determined by valve member 92. Appellant, in his brief and at oral argument, has emphasized that the size of the Jolly chamber 70 is not in fact determined by valve member 92, but that valve 92 only shuts off the flow of shave cream from the container and piston 72 is free to rise further (for example because of additional pressures created by the heating) to the extent spring 76 permits. Appellant’s interpretation of Jolly is correct; however, we still must agree with the board in its conclusion that Jolly discloses a chamber of “fixed size.” While the structures disclosed by Jolly and appellant are somewhat different, we think the claim language requiring merely a “fixed size” chamber is sufficiently broad to encompass Jolly’s device. In other words, we do not think the term “fixed size” precludes the existence of a movable piston inside a container such as Jolly’s which necessarily has a “fixed size.”
*1203In any event, we think it would have been obvious to one of ordinary skill in the art to eliminate the piston and related parts of the Jolly device. That is the second rationale applied 'by the board, with which we also agree. Appellant’s arguments in this regard are that there is no suggestion in Jolly of such a modification and, in fact, Jolly requires the use of a piston. Even if this were true, we still think it would be but an obvious mechanical expedient to eliminate the- piston and the function it performs.
The second principal issue herein concerns the rejection of claim 24 under 35 USC 112, first paragraph, since the claim limitations of “having at least one thin, wide, hollow chamber” and of the formation of a “thin wide sheet” of material are not supported by appellant’s disclosure. Claim 24 was copied from a patent to Eeich 4 which discloses a heating chamber formed of two plates “having a length and width substantially greater than the distance therebetween.” More specifically, Eeich states that: - •
Similarly, variations in tlie clearance space between the plates of the chamber of the invention in the range of 0.01 to 0.10 inch result in good heating efficiencies in connection with typical aerosol shaving foam products. Clearances greater than 0.10 inch produce lower efficiencies and also generally result in large holdup volume and wastage of lather. * * * Preferred heating efficiencies with nominal hold-up volume and lather wastage are obtained with clearance spaces in the range of 0.010 to 0.030 inch.
The majority of the board, being of the view that the limitation of “thin and wide” in the claim copied from the Eeich patent should be interpreted in view of the Eeich disclosure, found that:
Whereas, in the Reich et al. patent there is a clear description and illustration of a “thin wide chamber” capable of holding a product in a thin wide sheet formation, we find no counterpart thereof in the instant disclosure. The reference to “thin” in the Reich et al. disclosure has a specific significance and a.definite purpose which is not found described in the instant disclosure. To now refer to Appellant’s chamber 114 [Pig. 6] as “thin and wide” is to inject into the instant disclosure a concept not originally present.
On reconsideration, one member of the board dissented as to the affirmance of the rejection of claim 24. It was his view that the terms “thin” and “wide” are broad but unambiguous, but even assuming ambiguity and looking at Eeich it is seen that the broad concept therein is “a length and width substantially greater than the distance therebetween,” which is equivalent only to asaying “not thick.” Accordingly, he was of the opinion that “claim 24 is per se an adequate disclosure of the term ‘thin’ so broadly used.” Appellant, in essence, agrees with the dissenting board member.
*1204We cannot agree. The terms “thin” and “wide” are relative to the extent of being definitive only in regard to the particular object referred to. Therefore, we think it necessary to look to the specification in which such terms arose to determine their meaning. See, e.g., In re Hollman, 41 CCPA 937, 213 F. 2d 323, 102 USPQ 87 (1954). Taking Reich’s disclosure into consideration, we cannot but agree with the board’s conclusion that there is no indication, either inherent or express, that any of appellant’s chambers are even close to being “thin” as Reich uses that term.
Accordingly, we affirm the board’s decision.
Serial No. 611,499 filed December 1, 1966 as a continuation of application serial No. 487,968 filed August 31, 1965 as a continuation of application serial No. 325,209 filed November 15, 1963, which In turn Is a continuation-in-part of application serial No. 139,274 filed September 19,1961.
U.S. Patent No. 3,043,481 issued July 10, 1062 on an application filed June 4, 1959.
U.S. Patent No. 3,111,967 issued November 26, 1963 on an application filed January 24, 1961.
U.S. Patent No. 3,171,572 Issued March 2, 1965 on an application filed August 2, 1962.