Expansible chamber devices – Cylinder detail – Cylinder or liner retained in casing by casing closure or...
Reexamination Certificate
2011-07-26
2011-07-26
Kramer, Devon C (Department: 3746)
Expansible chamber devices
Cylinder detail
Cylinder or liner retained in casing by casing closure or...
C417S454000, C417S539000
Reexamination Certificate
active
07984671
ABSTRACT:
A self-tightening retaining system for securing a closure in position closing an access port of a pump housing. The system includes a retaining cover for obstructing removal of the closure from a bore of the access port. The cover has external threads interengageable with screws threads of the bore. A locking device is configured for being secured to the cover such that the locking device rotates together with the cover. The locking device has a fastener receivable in a hole of the closure and has external threads interengageable with threads of the hole. The threads of the cover and the threads of the fastener are spiraled in opposite directions such that when the cover rotates in a loosening direction, the fastener becomes tightened in the hole of the closure thereby stopping the rotation.
REFERENCES:
patent: 2766701 (1956-10-01), Giraudeau
patent: 3037460 (1962-06-01), Guest et al.
patent: 3137216 (1964-06-01), Aytes
patent: 3277837 (1966-10-01), Pangburn
patent: 3327643 (1967-06-01), Pangburn
patent: 3372648 (1968-03-01), Hammelmann
patent: 3373695 (1968-03-01), Yohpe
patent: 3610110 (1971-10-01), Schaaf
patent: 3666382 (1972-05-01), Rasmussen
patent: 3792393 (1974-02-01), Streich et al.
patent: 4264286 (1981-04-01), Reinkemeyer
patent: 4477236 (1984-10-01), Elliott
patent: 4508133 (1985-04-01), Hamid
patent: 4520837 (1985-06-01), Cole et al.
patent: 4771801 (1988-09-01), Crump et al.
patent: 4927305 (1990-05-01), Peterson, Jr.
patent: 5073096 (1991-12-01), King et al.
patent: 5382057 (1995-01-01), Richter
patent: 5839888 (1998-11-01), Harrison
patent: 6419459 (2002-07-01), Sibbing
patent: 7506574 (2009-03-01), Jensen et al.
Notice of References Cited from the parent case (1 page), Jan. 28, 2008.
Information Disclosure Statement by Applicant from parent case (1 page), Jan. 28, 2008.
Jensen Ernest J.
McLain Anthony W.
Bertheaud Peter J
Conte James B.
Gardner Denver, Inc.
Husch & Blackwell LLP
Kramer Devon C
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