spring between closure member and pin extending through walls of hollow member and beyond-Claim for particular constructionClaim for combinationManu- facture and sale of part of combination.

The specification of an invention relating to lubricating apparatus claimed a patent with respect to a device consisting in part of a cup or equivalent receptacle for containing grease or the like having a hollow member with one end flanged inwardly to provide a seat for a closure member which is normally held seated by a spring or the like confined between the closure member and a pin extending from and through a wall or the walls of the hollow member and projecting outwardly therefrom. The appellants adopted a device for a similar purpose, but substituted for the pin extending from and through a wall or the walls of the hollow member and projecting outwardly therefrom, a collar round the hollow member with pins or lugs projecting outwardly there- from (and not through its walls) so as to form a bayonet coupling, the spring being confined between the ball constituting the closure member and the walls and the end of the cylinder or hollow member.

Held that the device adopted by the appellants was not a mere mechanical equivalent of the respondent's patent or a colourable imitation of the patented article, and that the respondent's patent was not infringed.

Held, also, that a patent for a combination of various parts is not infringed by the manufacture or sale of the separate parts.

Decision of the Supreme Court of Victoria (McArthur J.) Alemite Corpora- tion v. Walker, (1933) V.L.R. 154, reversed.

49 CLR 644

APPEAL from the Supreme Court of Victoria.

The Alemite Corporation, being incorporated under the laws of the State of Delaware in the United States of America and being the owner of letters patent in respect of improvements in certain lubricating apparatus under the Patents Acts of the Commonwealth, brought an action against Henry Montague Walker and Daisy Jeannette Walker, who carried on business under the name of the Rox Manufacturing Company, alleging that the defendants had infringed the plaintiff's patent rights, and claiming an injunction and damages in respect of the alleged infringement. The plaintiff's particulars alleged that the defendants manufactured and sold in the State of Victoria grease-cups or nipples which were manufactured in infringement of claiming clauses 1, 4-11 and 13 (which are set out hereunder) in the complete specification of the plaintiff's letters patent.

The defendants alleged that the claiming clauses of the specification should be read, in view of the prior art, as claiming merely the particular construction described, illustrated and claimed therein and should not be SO construed as to render the defendant's grease- cups or nipples an infringement thereof and, alternatively, that the plaintiff's letters patent were invalid on the ground that the invention was not novel, but had been previously…

Grounds of appeal

[14] The appellant contends that the primary judge erred in finding that the respondent had discharged the onus of establishing the matters required under the relevant provision.

[15] It was submitted that his Honour failed to give adequate weight to the evidence of the second witness, and that the findings of fact were not reasonably open on the material before the Court.

[16] The respondent, for its part, submits that no error is disclosed, and that the conclusions reached were well within the range of outcomes available to the primary judge.

Consideration

[17] It is convenient to deal first with the question of construction, as the resolution of that issue informs the remaining grounds advanced by the appellant.

[18] For the reasons that follow, we are of the view that the appeal should be allowed in part and the matter remitted for further determination.

Continue reading Walker v Alemite Corporation

Details

AGLC: Walker v Alemite Corporation [1933] HCA 39
Case: [1933] HCA 39
Decision Date: 21 August 1933

CaseChat Overview and Summary

The appellants, Henry Montague Walker and Daisy Jeannette Walker, trading as the Rox Manufacturing Company, appealed from a decision of the Supreme Court of Victoria. The respondent, Alemite Corporation, had brought an action alleging that the appellants had infringed its letters patent for improvements in lubricating apparatus by manufacturing and selling grease-cups or nipples. The respondent sought an injunction and damages.

The legal issues before the High Court were whether the appellants' grease-cups constituted an infringement of the respondent's patent, and whether the patent was valid. Specifically, the court had to determine if the appellants' device was a mere mechanical equivalent or a colourable imitation of the patented article, and whether a patent for a combination of parts was infringed by the manufacture or sale of individual components of that combination. The appellants also contended that the patent was invalid due to lack of novelty and that their device did not infringe the specific claims made in the respondent's patent specification.

The Court found that the respondent's patent claimed a specific construction for a grease-cup, which included a pin extending from and through the walls of the hollow member and projecting outwardly therefrom, serving to retain a spring. The appellants' device, however, substituted a collar around the hollow member with outwardly projecting pins or lugs to form a bayonet coupling, and the spring was confined between the closure member and the walls and end of the cylinder. The Court held that this difference meant the appellants' device was not a mere mechanical equivalent or a colourable imitation of the patented article, as the specific construction of the pin was an essential feature of the respondent's claim. Furthermore, the Court affirmed the legal principle that a patent for a combination of various parts is not infringed by the manufacture or sale of the separate parts.

Consequently, the High Court allowed the appeal, reversing the decision of the Supreme Court of Victoria. The Court concluded that the appellants' grease-cups did not infringe the respondent's patent, and that the respondent's patent was not infringed by the manufacture or sale of individual components of the claimed combination.

Orders