Valves and valve actuation – With means for blocking or disabling actuator – Attachments
Reexamination Certificate
2005-12-14
2009-12-08
Fristoe, Jr., John K (Department: 3753)
Valves and valve actuation
With means for blocking or disabling actuator
Attachments
C251S096000, C251S291000, C251S337000
Reexamination Certificate
active
07628377
ABSTRACT:
A mechanical assist assembly for translating a pushing motion from a vehicle operator into an oppositely directed valve deactuation force including a spring cap having a generally round cap portion, a locking recess formed in the cap portion, a helical compression spring operationally connected and extending from the cap portion and a locking bolt extending from a vehicle dash plate. The cap portion may be depressed to actuate the valve actuator, thereby increasing the potential energy of the compression spring. The cap may be rotated a first direction to engage the locking bolt and, once engaged, may be rotated a second direction to disengage the locking bolt. Disengaging the cap portion from the locking bolt enables the helical compression spring to release its stored potential energy and urge the valve actuator into its disengaged position.
REFERENCES:
patent: 313249 (1885-03-01), Styne
patent: 763263 (1904-06-01), Cooke
patent: 1049153 (1912-12-01), Savino
patent: 2536214 (1951-01-01), Poreber
patent: 3236974 (1966-02-01), Louden et al.
patent: 3326375 (1967-06-01), Rosaen
patent: 3460572 (1969-08-01), Hartman
patent: 3602245 (1971-08-01), Meisel
patent: 3961876 (1976-06-01), Chernock
patent: 4019584 (1977-04-01), Allmendinger
patent: 4024884 (1977-05-01), Prescott et al.
patent: 4088374 (1978-05-01), Gute
patent: 4174055 (1979-11-01), Capra et al.
patent: 4193641 (1980-03-01), Reinecke
patent: 4437196 (1984-03-01), Louis
patent: 4572335 (1986-02-01), Kobelt
patent: 4605036 (1986-08-01), Smith et al.
patent: 4881388 (1989-11-01), Pruim
patent: 4907842 (1990-03-01), Goldfein
patent: 4989925 (1991-02-01), Kohno
patent: 5046786 (1991-09-01), Johnston et al.
patent: 5117872 (1992-06-01), Yie
patent: 5433410 (1995-07-01), Foltz
patent: 5560233 (1996-10-01), Watkins
patent: 5671904 (1997-09-01), Minutillo
patent: 5688027 (1997-11-01), Johnson
patent: 5813256 (1998-09-01), von Hagen
patent: 5839304 (1998-11-01), Wills
patent: 2008/0054000 (2008-03-01), Goldman
Brannon C. John
Brannon & Associates PC
Fristoe, Jr. John K
Tietjen Marina
LandOfFree
Operator assist device for vehicular air brake actuation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Operator assist device for vehicular air brake actuation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Operator assist device for vehicular air brake actuation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4098647