Tamper-resistant brake actuator

Details Tamper-resistant brake actuator Tamper-resistant brake actuator

1990-09-17

1991-11-26

Look, Edward K.

Expansible chamber devices

Plural flexible wall working members

92 63, 92130R, 29888, 29521, F01B 1900

Patent

active

050673912

ABSTRACT:
The present invention provides a tamper-resistant fluid-operated brake actuator having a power spring housed within a head or cap which is attached to a flange case having one or more diaphragms or pistons responsive to changes of fluid pressure within the brake actuator chambers. In one embodiment, the head is attached to the flange case by a substantially continuous curvilinear annular metal retaining member which must be inelastically deformed or destroyed in order to remove the head from the flange case, thus rendering tampering more difficult. In another embodiment, the annular metal retaining member of the present invention is integral with the actuator head and which is metal-spun or the like onto the flange case.

REFERENCES:
patent: 3158930 (1964-12-01), Wesstrom et al.
patent: 3736842 (1973-06-01), Valentine
patent: 3908520 (1975-09-01), Ma
patent: 3909919 (1975-10-01), Miyabayashi et al.
patent: 4191096 (1980-03-01), Benjamin
patent: 4565120 (1986-01-01), Gray et al.
patent: 4601600 (1986-07-01), Karlsson
patent: 4604944 (1986-08-01), Tsubouchi
patent: 4850263 (1989-07-01), Rumsey et al.
patent: 4960036 (1990-10-01), Gummer et al.

Affiliated with

Also associated with

Rating

Tamper-resistant brake actuator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tamper-resistant brake actuator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper-resistant brake actuator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2381774